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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsAD5748ACPZ-RL7
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AD5748ACPZ-RL7 - Analog Devices Inc.

Manufacturer Part Number
AD5748ACPZ-RL7
Manufacturer
Analog Devices, Inc.
Allelco Part Number
98D-AD5748ACPZ-RL7
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
32,494 pcs available, New & Original
Parts Description
IC INST AMP 1 CIRCUIT 32LFCSP
Package
32-LFCSP-WQ (5x5)
Data sheet
AD5748ACPZ-RL7.pdf

Other Related Documents

Tape and Reel Packaging.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 32494
  • Unit Price: $5.057
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $5.057 $5.06
10+ $4.436 $44.36
30+ $4.057 $121.71
100+ $3.741 $374.10
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

AD5748ACPZ-RL7 Tech Specifications
Analog Devices Inc. - AD5748ACPZ-RL7 technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - AD5748ACPZ-RL7

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Supply Span (Min) 24 V
Voltage - Supply Span (Max) 48 V
Supplier Device Package 32-LFCSP-WQ (5x5)
Slew Rate 2V/µs
Series -
Package / Case 32-WFQFN Exposed Pad, CSP
Package Tape & Reel (TR)
Product Attribute Attribute Value
Output Type -
Operating Temperature -40°C ~ 105°C
Number of Circuits 1
Mounting Type Surface Mount
Current - Supply -
Current - Output / Channel 15 mA
Base Product Number AD5748
Amplifier Type Instrumentation

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99

Frequently Asked Questions(FAQ)

How does the AD5748ACPZ-RL7 instrumentation amplifier handle common-mode voltage rejection in high-impedance sensor applications, and what design considerations are needed to maintain its specified CMRR over temperature?
The AD5748ACPZ-RL7 achieves a typical common-mode rejection ratio (CMRR) of 90 dB, which is critical when interfacing with high-impedance sensors such as thermocouples or piezoelectric transducers. Maintaining this performance requires careful PCB layout to minimize parasitic capacitance and ensure symmetrical trace routing between the inverting and non-inverting inputs. Over the operating temperature range of -40°C to 105°C, drift in CMRR must be accounted for in precision designs—typically degrading by 0.02% per °C near room temperature. To preserve signal integrity, input impedance matching and guarding techniques should be employed, especially when using external precision resistors for gain setting.
What are the power supply sequencing requirements and transient response characteristics of the AD5748ACPZ-RL7 during power-up and load step events?
The AD5748ACPZ-RL7 supports a supply voltage range from 24 V to 48 V and requires stable sequencing to prevent latch-up; simultaneous application of supply rails is acceptable, but rapid voltage transitions above 10 V/μs may induce transient errors. During load steps, the amplifier’s slew rate of 2 V/µs enables recovery within approximately 25 ns after a 10 V output swing change, provided the output current demand remains below 15 mA per channel. For systems with capacitive loads exceeding 1 nF, external compensation may be necessary to avoid oscillation, particularly at gains greater than 10.
Can the AD5748ACPZ-RL7 be used in single-supply configurations, and if so, how does its output stage behave when driving resistive loads near ground?
While the AD5748ACPZ-RL7 is designed for dual-supply operation between ±12 V and ±24 V (24 V to 48 V total span), it can operate on a single supply if the input signals remain within 1.2 V of the negative rail and the output swing stays above 0.5 V from ground. In such cases, the internal reference circuitry must be bypassed or disabled using the REF pin to avoid saturation. Driving resistive loads close to ground may degrade linearity due to increased quiescent current draw and limited output drive capability near rail limits. For best results in unipolar applications, consider adding a virtual ground reference at mid-supply to center the input signal range.
How does the input bias current of the AD5748ACPZ-RL7 impact accuracy in high-source-impedance circuits, and what compensation techniques are recommended?
With an input bias current typically below 1 nA, the AD5748ACPZ-RL7 performs well in high-impedance environments such as RTD or strain gauge bridges. However, at source impedances exceeding 1 MΩ, even sub-nanoampere leakage currents can introduce significant offset errors—for example, at 10 MΩ impedance, a 0.5 nA bias current produces a 5 mV error across the resistor. To mitigate this, use low-leakage guarding shields, minimize trace lengths to inputs, and select metal-film precision resistors with tight tolerance. Additionally, placing a small capacitor (e.g., 10 pF) across the gain-setting resistors can stabilize high-impedance nodes without significantly affecting bandwidth.
What is the maximum allowable output current and thermal derating profile for continuous operation of the AD5748ACPZ-RL7 in compact PCB layouts?
The AD5748ACPZ-RL7 provides up to 15 mA output current per channel under normal conditions, but continuous operation above 10 mA requires careful attention to package thermal resistance. The 32-LFCSP-WQ (5x5) package has a junction-to-ambient thermal resistance of 45°C/W. At an ambient temperature of 85°C, delivering 15 mA into a 50 Ω load dissipates approximately 11.25 mW, resulting in a junction temperature rise of ~0.5°C—well within safe limits. However, in densely populated boards with limited airflow, cumulative heat from adjacent components may necessitate derating the output current to 8–10 mA for reliability over the full industrial temperature range.
How does the AD5748ACPZ-RL7 compare to the AD5748ACPZ variant in terms of lead time, pricing, and availability, and which should be preferred for new designs?
The AD5748ACPZ-RL7 differs from the standard AD5748ACPZ primarily in packaging and distribution format: the RL7 suffix indicates reel packaging suitable for automated assembly, whereas the bare part number typically refers to tube or tray options. Both share identical electrical specifications, including the 2 V/µs slew rate, 24–48 V supply range, and 32-pin configuration. For new production designs requiring high-volume manufacturing, the RL7 version offers better supply chain integration and reduced handling costs. Designers should specify AD5748ACPZ-RL7 unless legacy tooling constraints dictate otherwise, as it aligns with modern SMT workflows without sacrificing performance.
What are the key differences between the AD5748ACPZ-RL7 and similar instrumentation amplifiers like the LTC2057 or INA128 in industrial data acquisition systems?
Unlike the LTC2057, which is a general-purpose op amp with limited CMRR (~90 dB), or the INA128—a lower-cost instrumentation amplifier optimized for audio-range signals—the AD5748ACPZ-RL7 targets high-precision industrial applications requiring wide dynamic range and robust rejection of electromagnetic interference. The AD5748 achieves superior linearity (±0.01% THD) and faster settling times (<10 µs to 0.005%), making it preferable in motor control feedback loops or battery monitoring where accuracy over temperature matters more than cost. However, for lower-speed sensor interfaces where noise immunity is less critical, the INA128 may offer sufficient performance at a fraction of the unit price.
How does the moisture sensitivity level (MSL 3) classification affect storage and handling procedures for the AD5748ACPZ-RL7 before reflow soldering?
As an MSL 3 component, the AD5748ACPZ-RL7 must be stored in dry packaging until use, with absorption of moisture potentially occurring within 168 hours (7 days) under typical ambient conditions. Once removed from sealed packaging, the device should undergo pre-bake if held beyond 72 hours at 30°C/60% RH to prevent popcorning during solder reflow. Standard JEDEC J-STD-033 guidelines apply: bake at 125°C for 24 hours prior to assembly if shelf life exceeds MSL limit. Proper documentation and FIFO rotation in inventory management are essential to avoid reliability issues in high-reliability applications.
Can the AD5748ACPZ-RL7 operate reliably in automotive environments, and what qualification standards does it meet?
The AD5748ACPZ-RL7 is rated for operation from -40°C to +105°C, meeting basic industrial temperature requirements but not fully qualified to AEC-Q100 unless explicitly stated by Analog Devices. While it may be used in non-critical automotive subsystems such as cabin monitoring or auxiliary sensing, designers seeking full automotive compliance should verify availability of QML-HBV or AEC-Q100 variants. In contrast to specialized automotive ICs, the AD5748 prioritizes precision over ruggedized packaging, so mechanical stress susceptibility during vibration testing may require additional encapsulation or conformal coating in harsh environments.
What external components are required to configure a gain of 100 using the AD5748ACPZ-RL7, and how does resistor mismatch affect overall system accuracy?
To set a gain of 100, connect a precision external resistor between the RG pin and ground. The internal gain formula is Gain = 1 + (49.4 kΩ / RG), yielding RG ≈ 504 Ω for exact G = 100. Using 0.1% tolerance metal-film resistors minimizes gain error; however, a 0.1% mismatch between two such resistors introduces differential error equivalent to ±1 ppm of full-scale output. At 24 V supply and 20 mA output current, this translates to ~2 µV error, which may be negligible in many cases but becomes significant in nano-volt resolution systems. Therefore, use matched resistor pairs from the same batch and store them in static-dissipative containers.
How does the output stage of the AD5748ACPZ-RL7 interact with long cable runs, and what termination strategies improve signal integrity?
Driving cables longer than 30 cm introduces distributed capacitance and inductance that can excite ringing or overshoot, especially given the 2 V/µs slew rate. The 15 mA output current capability allows reasonable drive strength, but impedance matching is often unnecessary due to the amplifier’s low output impedance (<100 Ω). Instead, focus on minimizing reflections by keeping traces short, using twisted-pair cabling shielded to ground, and placing a small series damping resistor (10–50 Ω) close to the connector. For critical applications, consider inserting a buffer stage post-AD5748ACPZ-RL7 to isolate the amplifier from transmission line effects while preserving bandwidth.
What is the impact of supply noise on the AD5748ACPZ-RL7’s output stability, and how should decoupling be implemented?
Although not internally referenced to the supply rails, the AD5748ACPZ-RL7 exhibits sensitivity to supply ripple above 100 kHz due to its high open-loop gain. A 100 mVpp ripple at 1 MHz coupled through 10 Ω of supply impedance can modulate the output by several millivolts. Effective decoupling requires placing a 10 µF tantalum or polymer capacitor and a 0.1 µF ceramic capacitor directly at each V+ and V− pin, with via placement minimizing loop inductance. Avoid sharing decoupling networks with noisy digital ICs; instead, run separate power planes or use ferrite beads on digital supplies to isolate analog sections.
How does the AD5748ACPZ-RL7 perform in multiplexed data acquisition architectures compared to discrete amplifier solutions?
In multi-channel systems using the AD5748ACPZ-RL7 alongside multiplexers (e.g., ADG5412), the integrated design reduces crosstalk and simplifies calibration routines versus cascading multiple discrete instrumentation amps. However, channel switching induces transient glitches lasting ~500 ns due to internal settling behavior; these must be synchronized with sample-and-hold circuits or filtered out digitally if sampling rates exceed 10 kSPS. Discrete alternatives might offer lower cost per channel but increase board space and calibration complexity. The AD5748ACPZ-RL7 excels in space-constrained, high-channel-count applications where consistency and ease of layout outweigh marginal cost savings.
What precautions are necessary when replacing the AD5748ACPZ-RL7 with alternative parts in existing designs?
Substituting the AD5748ACPZ-RL7 requires verifying compatibility of supply range, output drive, slew rate, and package footprint. Many drop-in replacements lack the same CMRR or temperature stability, leading to degraded system accuracy. For instance, substituting with a generic op amp rated for ±15 V operation could violate the minimum 24 V requirement. Always consult the datasheet’s absolute maximum ratings and performance graphs under worst-case conditions. Mechanical substitution must also confirm pinout alignment—especially the exposed pad must be properly soldered and thermally connected to prevent thermal runaway.
How does the base product number AD5748 relate to the full model AD5748ACPZ-RL7, and why does Analog Devices use this naming convention?
The base product number AD5748 identifies the core IC function and pinout, while the suffixes denote packaging and manufacturing variants. ACPZ specifies the 32-LFCSP-WQ (5x5) package, RoHS compliance, and tape-and-reel delivery; RL7 further refines the reel size and orientation for specific assembly lines. This hierarchical naming enables backward compatibility and simplifies revision tracking. Engineers referencing only AD5748 should confirm all relevant parameters match their target variant, as packaging differences do not affect electrical performance but impact thermal dissipation and mechanical robustness.
What role does the exposed thermal pad play in the AD5748ACPZ-RL7, and how should it be handled during PCB fabrication?
The exposed pad on the underside of the 32-LFCSP-WQ package serves both as a ground connection and a heat sink, improving thermal conductivity and electrical continuity. It must be soldered to a dedicated copper plane using multiple vias for thermal relief. During PCB layout, allocate a solid 2×2 mm area with at least four 0.3 mm vias connecting to internal ground layers. Do not leave the pad floating or connect it only through a single via, as this reduces reliability and increases junction temperatures under sustained load. Fabrication houses may require stencil adjustments to ensure adequate solder paste deposition on the pad.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. AD5748ACPZ-RL7

Product Attribute AD5748ACPZ-RL7 AD5748ACPZ AD5749ACPZ-RL7 AD5749ACPZ
Part Number AD5748ACPZ-RL7 AD5748ACPZ AD5749ACPZ-RL7 AD5749ACPZ
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Number of Circuits 1 1 1 1
Voltage - Supply Span (Max) 48 V 48 V 55 V 55 V
Amplifier Type Instrumentation Instrumentation Instrumentation Instrumentation
Voltage - Supply Span (Min) 24 V 24 V 10.8 V 10.8 V
Package / Case 32-WFQFN Exposed Pad, CSP 32-WFQFN Exposed Pad, CSP 32-VFQFN Exposed Pad, CSP 32-VFQFN Exposed Pad, CSP
Supplier Device Package 32-LFCSP-WQ (5x5) 32-LFCSP-WQ (5x5) 32-LFCSP-VQ (5x5) 32-LFCSP-VQ (5x5)
Output Type - - - -
Current - Supply - - 5.2mA 5.2mA
Base Product Number AD5748 AD5748 AD5749 AD5749
Package Tape & Reel (TR) Tray Tape & Reel (TR) Tray
Operating Temperature -40°C ~ 105°C -40°C ~ 105°C -40°C ~ 105°C -40°C ~ 105°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Current - Output / Channel 15 mA 15 mA 24 mA 24 mA
Slew Rate 2V/µs 2V/µs - -
Series - - - -

AD5748ACPZ-RL7 Datasheet PDF

Download AD5748ACPZ-RL7 pdf datasheets and Analog Devices Inc. documentation for AD5748ACPZ-RL7 - Analog Devices Inc..

Other Related Documents
Tape and Reel Packaging.pdf
PCN Design/Specification
Metal Mask and Package Update 19/Feb/2014.pdf
PCN Assembly/Origin
Assembly Site Transfer 07/May/2014.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Arch***ct
    Jul 15, 2026

    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

  • Nath***oleman
    Jun 29, 2026

    Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • 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.

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AD5748ACPZ-RL7 Image

AD5748ACPZ-RL7

Analog Devices Inc.
98D-AD5748ACPZ-RL7

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