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HomeProductsIntegrated Circuits (ICs)Data Acquisition - Analog to Digital Converters (ADC)AD7193BRUZ
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AD7193BRUZ - Analog Devices Inc.

Manufacturer Part Number
AD7193BRUZ
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-AD7193BRUZ
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
3,890 pcs available, New & Original
Parts Description
IC ADC 24BIT SIGMA-DELTA 28TSSOP
Package
28-TSSOP
Data sheet
AD7193BRUZ.pdf

Datasheets

AD7193.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 3890
  • Unit Price: $7.871
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $7.871 $7.87
10+ $6.949 $69.49
30+ $5.981 $179.43
100+ $5.51 $551.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

AD7193BRUZ Tech Specifications
Analog Devices Inc. - AD7193BRUZ technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - AD7193BRUZ

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Supply, Digital 2.7V ~ 5.25V
Voltage - Supply, Analog 3V ~ 5.25V
Supplier Device Package 28-TSSOP
Series -
Sampling Rate (Per Second) -
Reference Type External
Ratio - S/H:ADC -
Package / Case 28-TSSOP (0.173", 4.40mm Width)
Package Tube
Operating Temperature -40°C ~ 105°C
Product Attribute Attribute Value
Number of Inputs 4, 8
Number of Bits 24
Number of A/D Converters 1
Mounting Type Surface Mount
Input Type Differential, Pseudo-Differential
Features PGA
Data Interface SPI, DSP
Configuration MUX-PGA-ADC
Base Product Number AD7193
Architecture Sigma-Delta

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

AD7193BRUZ Image
AD7193BRUZ (1)

Manufacturer Part Number

AD7193BRUZ

Manufacturer

Analog Devices

Introduction

High precision, low noise, 24-bit sigma-delta ADC for data acquisition systems.

AD7193BRUZ Image
AD7193BRUZ (2)

Product Features and Performance

24-bit resolution

Sigma-delta architecture for noise reduction

Differential and pseudo-differential input types

SPI and DSP compatible data interface

On-chip programmable gain amplifier (PGA)

Multiple input channels (4 or 8)

Wide analog supply voltage range (3V to 5.25V)

Wide digital supply voltage range (2.7V to 5.25V)

Extended operating temperature range (-40°C to 105°C)

Product Advantages

High-resolution data conversion for precise applications

Noise reduction capabilities suitable for low-signal measurement

Flexible configuration for various data acquisition scenarios

Integrated features reduce external component count

Key Technical Parameters

24-bit resolution

Number of Inputs: 4 or 8

Input Type: Differential, Pseudo-Differential

Reference Type: External

Voltage - Supply, Analog: 3V to 5.25V

Voltage - Supply, Digital: 2.7V to 5.25V

Operating Temperature: -40°C to 105°C

Quality and Safety Features

Designed for industrial temperature ranges

Reliable surface mount package

Long-term performance consistency

AD7193BRUZ Image
AD7193BRUZ (3)

Compatibility

Compatible with SPI and DSP interfaces

Can interface with multiple sensors and signal types

Application Areas

Industrial process control

Medical instrumentation

Weigh scales

Precision data acquisition systems

Product Lifecycle

Active product status

Not nearing discontinuation at present

Several Key Reasons to Choose This Product

Exceptional resolution and accuracy for sensitive measurements

Supports a variety of input signal types, increasing versatility

Integrated PGA simplifies design and boosts input signal

Capable of interfacing with a wide range of digital systems

Durable design fit for industrial and medical applications

Ensures long-term availability and support as an active status component

Frequently Asked Questions(FAQ)

How does the AD7193BRUZ's 24-bit resolution compare to lower-resolution ADCs like the AD7793 when measuring small differential signals in industrial sensor applications?
The AD7193BRUZ delivers true 24-bit sigma-delta performance, enabling a dynamic range sufficient to resolve microvolt-level changes in bridge-based sensors such as strain gauges or thermocouples. In contrast, devices like the AD7793 (typically 24-bit) may offer similar bit counts but often with lower effective resolution due to higher noise floors and less optimized front-end filtering. For applications requiring precise signal conditioning over a wide temperature range, the AD7193BRUZ’s integrated programmable gain amplifier (PGA) and low drift characteristics make it more suitable for direct transducer interface without requiring external amplification stages.
What are the key differences between using the AD7193BRUZ in pseudo-differential versus fully differential input mode, especially regarding noise immunity and common-mode rejection?
In pseudo-differential mode, the AD7193BRUZ measures the voltage difference between one selected channel and an internal reference channel, offering improved rejection of broadband noise on the analog supply rails. This is advantageous when driving long traces where ground loops or switching noise could couple into the measurement path. Fully differential operation allows true common-mode voltage monitoring and provides superior suppression of interference that appears equally on both inputs—critical in environments with high electromagnetic interference. The choice depends on whether the system can guarantee stable common-mode voltages; otherwise, pseudo-differential may yield better practical results despite slightly reduced CMRR under variable conditions.
Can the AD7193BRUZ operate reliably at the upper end of its operating temperature range (up to +105°C), and what design considerations are necessary for automotive or industrial edge deployments?
Yes, the AD7193BRUZ is specified from -40°C to +105°C, making it suitable for extended industrial and some automotive-grade applications. However, at elevated temperatures, the offset drift and gain error of the internal PGA increase, which may necessitate calibration routines during system bring-up or periodic recalibration if long-term stability is critical. Additionally, thermal gradients across the PCB or package can affect performance, so layout symmetry around the ADC and careful decoupling—especially for the analog supply—are essential. Users should avoid routing digital lines near analog input paths to prevent coupling-induced errors.
How does the SPI interface implementation on the AD7193BRUZ impact throughput and timing constraints in multi-device daisy-chained configurations?
The AD7193BRUZ supports standard SPI communication with clock rates up to 5 MHz, though actual data throughput is limited by the conversion time rather than serial interface speed. When daisy-chaining multiple AD7193BRUZ units, the master must account for cumulative propagation delays and ensure sufficient turnaround time between transactions. Since each conversion takes approximately 100 µs at default settings, sustained throughput drops significantly beyond single-device use. Careful attention to CS# assertion timing and minimizing bus capacitance helps maintain integrity, but designers should validate full-system throughput early in the development cycle.
Is it possible to cascade multiple AD7193BRUZ devices for simultaneous sampling of multiple sensors, and what synchronization challenges arise?
While technically feasible, cascading AD7193BRUZ devices does not enable true simultaneous sampling because each device operates independently after configuration. If synchronization across channels is required—such as in vibration analysis or multi-channel process control—the microcontroller must trigger conversions sequentially with precise timing coordination. Alternatively, systems needing synchronous acquisition would be better served by dedicated multi-channel ADCs with shared clock and conversion control, as the AD7193BRUZ lacks inter-chip synchronization features.
Given the AD7193BRUZ’s external reference requirement, how does selection of the reference voltage source affect overall system accuracy and stability over time?
The AD7193BRUZ relies on an external precision reference, typically a low-drift bandgap source such as the ADR4550 or LTZ1000 family. The accuracy and long-term stability of this reference directly translate into ADC linearity and offset errors. For example, a 5V reference with ±10 ppm/°C drift contributes approximately ±1 LSB error over a 125°C span in 24-bit mode. Therefore, selecting a reference with <5 ppm initial tolerance and <1 ppm/°C drift ensures that reference-induced error remains below the quantization level. Additionally, bypassing the REF pins with high-quality ceramic capacitors close to the IC minimizes noise coupling and stabilizes the internal comparator thresholds.
What role does the internal PGA play in maximizing usable resolution when interfacing weak sensor outputs with the AD7193BRUZ?
The AD7193BRUZ includes a programmable gain amplifier with selectable gains ranging from 1 to 128, allowing users to scale small sensor signals—such as those from RTDs or piezoresistive elements—into the ADC’s optimal input range. Applying appropriate gain reduces quantization noise relative to the signal amplitude, thereby improving effective number of bits (ENOB). For instance, amplifying a 5 mV bridge output to 1 V before digitization preserves more significant figures compared to digitizing directly at millivolt levels where most codes remain unused. Proper gain selection also minimizes the impact of op-amp offsets and thermal noise from preceding stages.
How does the AD7193BRUZ handle power-up sequencing between analog and digital supplies, and what risks exist if sequencing requirements are violated?
Although not strictly mandated by the datasheet, violating power-up sequencing between VDD_A (analog) and VDD_D (digital)—such as applying digital voltage first—can cause latch-up or increased susceptibility to noise injection through substrate coupling. The AD7193BRUZ supports supply ranges of 3–5.25V for both analog and digital domains, but maintaining analog rail stabilization before enabling digital circuitry ensures clean initialization of internal bias currents and reference circuits. Designers should verify that both supplies reach nominal values within 1 ms and consider using power-good monitors or soft-start controllers in battery-powered systems.
In comparison to other sigma-delta ADCs like the AD7175 or ADS1256, what advantages does the AD7193BRUZ offer for high-precision, low-frequency measurement applications?
Unlike delta-sigma converters optimized for high-speed sampling (e.g., AD7175 at 25 kSPS), the AD7193BRUZ targets ultra-low-noise, low-frequency applications (<10 Hz) common in weigh scales, pressure transducers, and thermometry. Its integration of a PGA, multiplexed inputs, and flexible decimation filters allows direct connection to slow-changing signals without external anti-aliasing filters. Compared to the ADS1256 (Texas Instruments), the AD7193BRUZ offers tighter specs on offset voltage (typically ±5 µV) and lower current consumption, making it preferable in energy-constrained, high-accuracy systems where board space permits.
Are there any known limitations when driving capacitive loads from the AD7193BRUZ’s output drivers during SPI communication, particularly in long trace environments?
The AD7193BRUZ uses CMOS-compatible output stages capable of driving moderate capacitive loads, but exceeding recommended limits (typically <20 pF per line) can lead to signal ringing, increased rise/fall times, and potential misinterpretation by downstream logic. In systems with long PCBs traces (>15 cm), adding series termination resistors (22–100 Ω) near the driver improves signal integrity. Alternatively, reducing SPI clock frequency or using shielded cables mitigates risk. Always perform eye diagram testing or scope capture under worst-case load conditions during prototype validation.
How should the AD7193BRUZ be handled during manufacturing if automated optical inspection (AOI) or rework stations are employed, given its small TSSOP footprint?
As a surface-mount component with a Moisture Sensitivity Level (MSL) of 1, the AD7193BRUZ poses minimal handling risk, but its 28-pin 4.4 mm-wide package demands precise solder paste printing and alignment. During reflow, excessive thermal mass or uneven heating may cause tombstoning or head-in-pillow defects. Use fine-pitch stencils with laser-cut apertures and ensure reflow profiles adhere to IPC-J-STD-020 for MSL 1 parts. For rework, hot-air tools with temperature profiling are preferred over soldering irons to avoid damaging adjacent components due to localized heat concentration.
What steps are recommended to minimize settling time and conversion latency when configuring the AD7193BRUZ for rapid sequential measurements across multiple channels?
To reduce settling time, configure the AD7193BRUZ to use the fastest available decimation rate while ensuring adequate noise bandwidth for the application. Lower decimation rates increase settling time but improve noise rejection; thus, a balance must be struck based on required update rate. Additionally, pre-charge the input multiplexer briefly before initiating a conversion by setting the appropriate register bits to allow internal capacitor settling. Avoid unnecessary filter changes between conversions, and keep channel switching intervals consistent to exploit internal timing predictability. Real-time firmware should poll status registers efficiently rather than relying solely on interrupts.
Can the AD7193BRUZ be used in battery-powered systems, and what strategies minimize quiescent current consumption during idle periods?
Yes, the AD7193BRUZ consumes typical quiescent currents of ~1 mA in normal operation, which is manageable in many battery applications when duty-cycled effectively. During idle periods, place the device in standby mode via register control, reducing supply current to sub-µA levels. Ensure that all unused input channels are grounded or tied to mid-supply to prevent leakage paths. Also disable the oscillator if supported by the variant, though note that some functions may require clock activity even in standby. Implementing wake-on-threshold or external interrupt-driven sampling further extends battery life.
How does the AD7193BRUZ perform in terms of electromagnetic compatibility (EMC) when exposed to fast transient bursts, and what PCB layout practices enhance robustness?
The AD7193BRUZ does not include built-in ESD protection beyond standard IC-level safeguards, so external clamping diodes and proper grounding are critical. Layout recommendations include placing bypass capacitors (100 nF MLCC) as close as possible to VDD_A and VDD_D pins, using star-point grounding for analog return currents, and enclosing sensitive traces in guard rings driven from a quiet reference point. Keep digital return currents away from analog input paths, and consider ferrite beads on supply lines entering noisy sections of the board. Compliance with IEC 61000-4-4 test levels requires additional shielding or filtering in harsh environments.
What diagnostic capabilities does the AD7193BRUZ provide for detecting internal faults or calibration drift during system runtime?
The AD7193BRUZ supports internal self-test modes, including short-circuit detection (testing input impedance) and system offset/gain calibration routines accessible via SPI commands. These allow periodic verification of internal circuitry health without external stimulus. Additionally, the device reports overrange conditions and provides status flags indicating filter settling, reference status, and communication errors. Leveraging these features enables predictive maintenance in continuous monitoring systems, where sudden deviations could indicate sensor degradation or environmental stress beyond design assumptions.
In comparison to alternative 24-bit ADCs from Microchip or TI, what makes the AD7193BRUZ particularly well-suited for precision instrumentation requiring external reference flexibility?
While competitors like the MCP3428 (Microchip) or ADS124S08 (TI) offer integrated references and smaller form factors, the AD7193BRUZ distinguishes itself by decoupling reference sourcing from the ADC core, enabling use of higher-grade external references tailored to specific accuracy budgets. This architecture avoids compromises in reference stability that often plague monolithic solutions, especially when operating over wide temperature spans. Furthermore, Analog Devices’ extensive driver libraries and evaluation platforms simplify software integration, providing tangible benefits in complex embedded designs where long-term traceability and calibration are paramount.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. AD7193BRUZ

Product Attribute AD7193BRUZ-REEL AD7190WBRUZ-RL AD7192BRUZ-REEL AD7192BRUZ
Part Number AD7193BRUZ-REEL AD7190WBRUZ-RL AD7192BRUZ-REEL AD7192BRUZ
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Number of Bits - 16 8 14
Ratio - S/H:ADC - - - 1:1
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Input Type - - - Differential
Series - - - -
Voltage - Supply, Digital - 1.14V ~ 1.26V 11.4V ~ 16.5V 1.65V ~ 3.6V
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Supply, Analog - 3.14V ~ 3.46V 11.4V ~ 16.5V 3V ~ 3.6V
Reference Type - External, Internal External External, Internal
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Base Product Number - DAC34H84 MAX500 ADS62P42
Number of A/D Converters - - - 2
Sampling Rate (Per Second) - - - 65M
Data Interface - LVDS - Parallel I²C LVDS - Parallel, Parallel
Architecture - Current Source R-2R Pipelined
Configuration - - - S/H-ADC
Number of Inputs - - - 2
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Features - - - Simultaneous Sampling
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

AD7193BRUZ Datasheet PDF

Download AD7193BRUZ pdf datasheets and Analog Devices Inc. documentation for AD7193BRUZ - Analog Devices Inc..

Datasheets
AD7193.pdf
Other Related Documents
ADI Programmable Log Controller Solutions.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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2.00kg-3.00kg USD$50.00 - USD$100.00
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AD7193BRUZ Image

AD7193BRUZ

Analog Devices Inc.
32D-AD7193BRUZ

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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