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HomeProductsIntegrated Circuits (ICs)Data Acquisition - Analog to Digital Converters (ADC)ADS6148IRGZR
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ADS6148IRGZR - Texas Instruments

Manufacturer Part Number
ADS6148IRGZR
Manufacturer
Texas Instruments
Allelco Part Number
32D-ADS6148IRGZR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
12,568 pcs available, New & Original
Parts Description
IC ADC 14BIT PIPELINED 48VQFN
Package
48-VQFN (7x7)
Data sheet
ADS6148IRGZR.pdf

PCN Assembly/Origin

2.73KHz.pdf
RoHs Status
ROHS3 Compliant
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Specifications

ADS6148IRGZR Tech Specifications
Texas Instruments - ADS6148IRGZR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - ADS6148IRGZR

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply, Digital 1.7V ~ 1.9V
Voltage - Supply, Analog 3V ~ 3.6V
Supplier Device Package 48-VQFN (7x7)
Series -
Sampling Rate (Per Second) 210M
Reference Type External, Internal
Ratio - S/H:ADC 1:1
Package / Case 48-VFQFN Exposed Pad
Package Tape & Reel (TR)
Operating Temperature -40°C ~ 85°C
Product Attribute Attribute Value
Number of Inputs 1
Number of Bits 14
Number of A/D Converters 1
Mounting Type Surface Mount
Input Type Differential
Features -
Data Interface LVDS - Parallel, Parallel
Configuration S/H-ADC
Base Product Number ADS6148
Architecture Pipelined

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN 3A991C3
HTSUS 8542.39.0001

Parts Introduction

ADS6148IRGZR Image
ADS6148IRGZR (1)

Manufacturer Part Number

ADS6148IRGZR

Manufacturer

Texas Instruments

Introduction

ADS6148IRGZR is a high-speed, 14-bit Analog to Digital Converter (ADC) featuring a maximum sampling rate of 210M samples per second with differential input type, primarily designed for advanced digital data acquisition.

Product Features and Performance

14-bit resolution

Maximum sampling rate of 210M samples per second

Single differential input

LVDS and parallel data interfaces

Pipelined architecture

Support for both external and internal reference voltages

Operates with analog supply voltage from 3V to 3.6V and digital supply voltage from 1.7V to 1.9V

Adaptable with surface mount technology

Product Advantages

High-speed data sampling capacity enhances real-time performance

Dual-mode reference voltage increases flexibility in varying conditions

Compact 48-VFQFN Exposed Pad package facilitates efficient usage of PCB space

Key Technical Parameters

Number of Bits: 14

Sampling Rate (Per Second): 210M

Input Type: Differential

Voltage - Supply, Analog: 3V ~ 3.6V

Voltage - Supply, Digital: 1.7V ~ 1.9V

Operating Temperature: -40°C ~ 85°C

Package / Case: 48-VFQFN Exposed Pad

Quality and Safety Features

Operates within a broad temperature range of -40°C to 85°C ensuring stability under extreme conditions

Quality ensured by Texas Instruments' rigorous testing and validation processes

Compatibility

Compatible with devices requiring LVDS or parallel data input interfaces

Surface mount compatibility suitable for modern PCB technology

Application Areas

Telecommunications

Data acquisition systems

Medical imaging equipment

Industrial automation and control systems

Product Lifecycle

Currently in active production status

Manufacturer ensures ongoing support and availability

Several Key Reasons to Choose This Product

Extremely fast sampling rate enables the capture of quick signal variations

High resolution facilitates precise data conversion from analog to digital

Robust operating temperature range ensures reliability in harsh environments

Compatibility with modern mounting technologies reduces hardware design complexities

Trusted manufacturer with a global reputation in semiconductor solutions

Frequently Asked Questions(FAQ)

How does the ADS6148IRGZR compare to other 14-bit pipelined ADCs in terms of sampling rate and power efficiency for high-speed data acquisition applications?
The ADS6148IRGZR achieves a maximum sampling rate of 210 MSPS, which is competitive within its class of 14-bit pipelined ADCs. While many contemporary devices offer similar resolution, few match this speed without significant increases in power consumption or complexity. Its dual-supply architecture—3V analog and 1.9V digital—enables efficient signal chain integration, particularly when paired with low-voltage LVCMOS or LVDS logic interfaces. However, at full throughput, dynamic power scales with frequency, so designers must balance performance against thermal and supply constraints in continuous conversion scenarios.
What design considerations are critical when interfacing the ADS6148IRGZR with external reference circuitry to maintain INL and DNL accuracy across temperature?
Maintaining monotonicity and linearity over the -40°C to 85°C range requires careful attention to the external reference source. The ADS6148IRGZR specifies an external reference option, implying that internal references may not meet the stringent linearity demands of high-speed pipelined architectures. Use a precision, low-noise bandgap reference with <1 LSB integral nonlinearity (INL) drift over temperature. Additionally, layout symmetry around the reference input pins minimizes ground bounce and crosstalk into the analog front end. Decoupling capacitors near the REF pin should be placed as close as possible to minimize trace inductance, which can degrade PSRR at RF frequencies where quantization noise dominates.
Can the ADS6148IRGZR be used effectively in radar or LiDAR systems requiring simultaneous multi-channel synchronization?
No, because the ADS6148IRGZR is a single-channel ADC with only one differential input. It lacks built-in sample-and-hold synchronization mechanisms or inter-channel timing control necessary for coherent beamforming or phase-aligned multi-sensor systems. For such applications, Texas Instruments offers multi-channel families like the ADS58Jxx series or dedicated SAR/LTC2387-based solutions better suited to parallel acquisition with precise timing skew management.
Why might a designer choose the ADS6148IRGZT over the ADS6148IRGZR despite identical electrical characteristics?
Both variants share the same pinout and functionality; the difference lies solely in packaging orientation during manufacturing. The ADS6148IRGZT is likely offered in a tape-and-reel format optimized for pick-and-place assembly with different feeder configurations. Designers selecting between them should consult their PCB layout constraints and automated assembly line specifications rather than electrical performance, as thermal resistance, solder joint reliability, and board real estate usage remain equivalent.
What impact does clock jitter have on effective number of bits (ENOB) when operating the ADS6148IRGZR at 210 MSPS?
Clock jitter directly limits SNR and thus ENOB. At 210 MSPS, even sub-picosecond RMS jitter begins to degrade performance significantly due to the narrow aperture time. For example, approximately 1 ps of RMS jitter reduces SNR by about 6 dB in a sine-wave test tone, pushing ENOB below 12 bits. This makes the ADS6148IRGZR highly sensitive to clean clock sources—preferably crystal oscillators with low phase noise (< -150 dBc/Hz at 1 kHz offset). Using PLLs or fractional-N synthesizers without careful filtering may compromise dynamic performance despite meeting nominal frequency accuracy.
Is it feasible to operate the ADS6148IRGZR with a single 3.3V supply if the digital interface requires 1.8V logic levels?
Yes, but with caveats. The device supports separate analog (3–3.6V) and digital (1.7–1.9V) supplies, allowing independent regulation. While some systems derive the digital core voltage from the analog rail via a linear regulator, this approach increases quiescent current and heat generation. Alternatively, use a dedicated LDO to generate 1.8V from 3.3V, ensuring minimal dropout and low output noise. Direct coupling risks violating absolute maximum ratings if transient surges occur on the analog supply, potentially damaging the digital I/O structure.
How does the ADS6148IRGZR handle input overdrive conditions, and what happens if the differential input exceeds ±1 VPP?
The ADS6148IRGZR assumes a ±1 VPP full-scale differential input range under typical 3V analog supply conditions. Exceeding this range causes saturation or clipping, leading to distorted output codes and degraded SFDR. Unlike some oversampling converters that tolerate transient overdrive, pipelined ADCs like this one lack automatic gain control; thus, consistent overdrive leads to permanent offset shifts due to internal stage saturation. Input protection diodes clamp excessive voltages but increase distortion and may introduce latch-up risk if current exceeds 10 mA per pin. Always include anti-aliasing filters and DC bias circuits to prevent accidental overdrive.
What role does the sample-and-hold (S/H) stage play in the ADS6148IRGZR’s pipeline architecture, and why is the 1:1 ratio significant?
In a pipelined ADC, the S/H stage acquires the input signal before the first conversion stage processes it. The 1:1 ratio indicates that each pipeline stage contains both a sample-and-hold circuit and a flash ADC followed by regeneration logic. This architecture improves settling accuracy compared to simpler track-and-hold-only approaches, especially at high speeds. The 1:1 ratio also implies deterministic latency—each stage adds one clock cycle—making timing analysis straightforward for synchronous systems. However, it comes at the cost of increased die area and power relative to pure track-and-hold implementations.
Are there any known layout challenges when implementing the ADS6148IRGZR on a 6-layer PCB targeting high SNR performance?
Yes. The 48-pin VQFN package has an exposed thermal pad that must be solidly connected to a grounded inner plane to ensure proper thermal dissipation and electrical stability. Poor thermal vias can cause localized heating, degrading linearity. Separately, analog traces (REF, INP/N) should avoid crossing digital routing or high-speed lines to prevent capacitive coupling. Use guard rings around sensitive nodes and maintain impedance-controlled paths for the differential input. Given the 210 MSPS rate, even minor discontinuities in the transmission path can cause reflections and ringing, increasing aperture uncertainty.
How does the ADS6148IRGZR support LVDS parallel output, and what termination strategy ensures clean data capture?
The ADS6148IRGZR outputs data via a parallel LVDS interface, meaning each data bit is driven differentially across a pair of pins. To prevent reflections, terminate each LVDS lane with a 100 Ω resistor to a common mode voltage (typically VDD/2). Avoid open-drain or series termination unless required by receiver design. Since multiple lanes operate simultaneously, skew between channels must be minimized through matched trace lengths (< ±50 ps difference). Also, ensure the receiving FPGA or ASIC supports LVDS input thresholds compatible with 1.8V swing amplitudes.
Can the ADS6148IRGZR be powered up before its reference voltage stabilizes, and what are the potential consequences?
No. Applying power before the reference settles can cause undefined initialization states, leading to incorrect calibration routines or metastable pipeline stages. The internal biasing and chopping mechanisms depend on stable reference conditions to establish correct comparator thresholds. Power sequencing should follow: stabilize REF → apply analog supply → enable digital supply → assert reset → begin conversions. Skipping this sequence risks corrupted output codes and reduced yield in production environments.
What alternatives exist if the ADS6148IRGZR’s 210 MSPS throughput is insufficient but higher resolution (>14-bit) is not required?
For lower-speed, higher-resolution needs, consider SAR ADCs like the ADS54J60 (16-bit, 65 MSPS) or delta-sigma types such as the ADS131M08 (24-bit, 100 kSPS). These trade bandwidth for improved effective resolution and inherent oversampling benefits. However, they cannot match the ADS6148IRGZR’s speed-to-resolution product. If ultra-high speed remains essential, explore TI’s newer family members like the ADS654x series, which offer up to 500 MSPS with improved power efficiency and integrated features like programmable gain amplifiers.
How does the ADS6148IRGZR perform in terms of spurious-free dynamic range (SFDR) under real-world conditions versus ideal laboratory measurements?
Laboratory tests under ideal conditions (clean clocks, no EMI, optimal layout) may show SFDR > 70 dBc at 210 MSPS for mid-band inputs. However, real-world implementations often see degradation of 10–15 dB due to PCB parasitics, clock feedthrough, or poor grounding. The device’s performance is highly layout-sensitive; thus, achieving advertised SFDR consistently requires meticulous attention to return paths, shielding, and power integrity. Additionally, input signals near Nyquist frequency suffer from imaging effects, further reducing SFDR unless adequate anti-imaging filtering precedes the ADC.
What is the significance of the Moisture Sensitivity Level (MSL) rating of 3 for the ADS6148IRGZR in surface mount assembly?
MSL 3 indicates that the part must be soldered within 168 hours (7 days) after removing from dry storage to prevent moisture absorption. Exceeding this window risks delamination or popcorning during reflow, especially in lead-free processes requiring peak temperatures >245°C. Manufacturers typically bake components before assembly if stored beyond MSL 3 limits. Proper handling procedures include using humidity-controlled cabinets and tracking bake cycles per J-STD-033 standards.
Does the ADS6148IRGZR support burst-mode or continuous conversion operation with configurable output formatting?
The datasheet specifies continuous conversion mode as standard. Burst operation is not explicitly documented, implying fixed throughput regardless of output enable state. Output formatting depends on the selected data interface (LVDS parallel), which presents raw binary-coded output aligned to clock edges. There is no provision for user-programmable decimation or windowed averaging, limiting flexibility for power-constrained applications needing duty-cycled operation.
How does the choice of external versus internal reference affect long-term drift and system calibration overhead?
External references typically exhibit lower initial error but greater long-term drift (e.g., 5 ppm/°C vs. 10 ppm/°C for internal). Over a 10-year lifespan, this could accumulate to ±0.5% deviation in gain, requiring periodic recalibration in precision systems. Internal references simplify design but sacrifice accuracy and stability. For most industrial applications using the ADS6148IRGZR, an external reference strikes a reasonable balance between cost, size, and drift performance, provided environmental controls limit temperature swings to ±10°C.
What precautions should be taken regarding ESD protection when handling the ADS6148IRGZR during prototype development?
Although the VQFN package includes some built-in ESD protection, it does not eliminate the need for external safeguards. Use grounded wrist straps, ESD-safe workstations, and avoid direct contact with exposed pins. When probing, use active FET probes rated for ±500 V HBM. During socketing or hot-swapping, discharge all supplies before insertion. Even brief exposure to static fields can damage delicate input transistors, leading to latent failures that manifest under field stress.
How does the ADS6148IRGZR compare to competing ADCs like the Analog Devices AD9257 in mixed-signal system integration?
The AD9257 offers 14-bit, 210 MSPS with similar architecture but uses a CMOS parallel output instead of LVDS, potentially simplifying FPGA interfacing in some designs. However, it consumes more power and lacks the dual-supply isolation of the ADS6148IRGZR. From a TI ecosystem perspective, the ADS6148 integrates better with other TI components (e.g., clock drivers, FPD-Link transceivers) for complete video or radar subsystems. Choice ultimately hinges on interface compatibility, power budget, and existing infrastructure rather than raw performance metrics.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments ADS6148IRGZR

Product Attribute ADS6149IRGZR ADS6148IRGZ25 ADS6148IRGZT ADS6149IRGZT
Part Number ADS6149IRGZR ADS6148IRGZ25 ADS6148IRGZT ADS6149IRGZT
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Voltage - Supply, Analog - 3.14V ~ 3.46V 11.4V ~ 16.5V 3V ~ 3.6V
Input Type - - - Differential
Data Interface - LVDS - Parallel I²C LVDS - Parallel, Parallel
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Voltage - Supply, Digital - 1.14V ~ 1.26V 11.4V ~ 16.5V 1.65V ~ 3.6V
Base Product Number - DAC34H84 MAX500 ADS62P42
Mounting Type - Surface Mount Through Hole Surface Mount
Features - - - Simultaneous Sampling
Sampling Rate (Per Second) - - - 65M
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Number of A/D Converters - - - 2
Series - - - -
Number of Bits - 16 8 14
Configuration - - - S/H-ADC
Architecture - Current Source R-2R Pipelined
Reference Type - External, Internal External External, Internal
Ratio - S/H:ADC - - - 1:1
Number of Inputs - - - 2

ADS6148IRGZR Datasheet PDF

Download ADS6148IRGZR pdf datasheets and Texas Instruments documentation for ADS6148IRGZR - Texas Instruments.

PCN Assembly/Origin
2.73KHz.pdf
HTML Datasheet
Cylindrical Battery Holders.pdf

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Customer Reviews

Evaluation: 10 Articles

  • 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.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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ADS6148IRGZR Image

ADS6148IRGZR

Texas Instruments
32D-ADS6148IRGZR

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