ADS5546IRGZ25 - 14-Bit 190 MSPS ADC, LVDS/CMOS | Texas Instruments
MPN: ADS5546IRGZ25 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.65 | $346.50 |
| 100 | $30.8 | $3,080.00 |
| 500 | $27.55 | $13,775.00 |
| 1,000 | $24.95 | $24,950.00 |
ADS5546IRGZ25 Overview
What is a high-speed pipelined ADC? A pipelined analog-to-digital converter (ADC) is a type of data converter that achieves high sample rates by dividing the conversion task into multiple cascaded low-resolution stages, each stage producing a sub-ADC result before passing a residue to the next stage. Within the broader hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor. Pipelined ADCs sit at the top of the speed-resolution pyramid and dominate communications, instrumentation, and imaging markets.
Key features of the ADS5546IRGZ25 include a maximum sample rate of 190 MSPS, 14-bit resolution with no missing codes, 73.2-dBFS SNR at 70-MHz IF input, and 87-dBc SFDR at the same IF with 0 dB gain. Total power dissipation is 1.1 W when operating at full sample rate, with an internal sample-and-hold front end and Double Data Rate (DDR) LVDS outputs that halve the output bus width compared to CMOS.
Architecturally, the device uses a multi-stage pipelined core with proprietary error correction to guarantee no-missing-codes performance across the full operating range. The selectable LVDS/CMOS output interface is configurable per design, allowing designers to trade off I/O count against signal integrity and board complexity. A 3.3V analog supply and an internal reference simplify board design.
Typical applications include multi-carrier wireless base-station receivers, test and measurement digitizers, medical ultrasound beamformers, defense radar digitizers, and high-speed data acquisition front ends. The wide input bandwidth and excellent linearity also suit software-defined radio (SDR) platforms and high-end oscilloscope front ends.
When designing with this converter, allocate a low-noise 3.3V LDO for AVDD, enforce strict ground partitioning between analog and digital grounds joined only under the EPAD, and use controlled-impedance differential routing for the analog input. Decouple each supply pin with a 0.1 uF ceramic plus a 10 uF bulk capacitor to preserve SNR.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the ADS5546IRGZ25 for production designs.
Drop-in alternatives for ADS5546IRGZ25 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADS5546IRGZ25 (same form factor and footprint) — differing in Package, SFDR, SNR, Input Type, Operating Temperature Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADS5546IRGZR
✅ Drop-In✓ In Stock
$24.95 / Unit
View Datasheet →ADS5547IRGZ25
✅ Drop-In✓ In Stock
$24.5 / Unit
View Datasheet →ADS5547IRGZR
✅ Drop-In📋 Reference alternative (not in catalog)
ADS5545IRGZ25
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADS5546IRGZT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADS5546IRGZTG4
✅ Drop-In📋 Reference alternative (not in catalog)
ADS5546IRGZ25 Maximum Ratings & Electrical Characteristics
| Resolution | 14 bit |
| Sample Rate (Max) | 190 MSPS |
| Number of Inputs | 1 |
| Architecture | Pipelined |
| Input Type | Differential |
| SNR | 73.2 dBFS at 70 MHz IF |
| SFDR | 87 dBc at 70 MHz IF, 0 dB gain |
| Total Power Dissipation | 1.1 W |
| Missing Codes | None (no missing codes guaranteed) |
| Output Interface | DDR LVDS / Parallel CMOS (selectable) |
| Analog Supply Voltage | 3.3 V |
| Operating Temperature Range | -40 C to +85 C |
| Package | 48-VQFN (7x7 mm) with exposed pad |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
ADS5546IRGZ25 Pin Configuration
| Pin 1 | DRVDD — Digital output driver supply (3.3V) |
| Pin 2 | GND — Ground |
| Pin 3 | D0+/CMOS_D0 — LVDS data output pair 0 positive / CMOS D0 |
| Pin 4 | D0-/CMOS_DGND — LVDS data output pair 0 negative / CMOS D-GND reference |
| Pin 5 | D1+/CMOS_D1 — LVDS data output pair 1 positive / CMOS D1 |
| Pin 6 | D1-/CMOS_DGND — LVDS data output pair 1 negative / CMOS D-GND reference |
| Pin 7 | D2+/CMOS_D2 — LVDS data output pair 2 positive / CMOS D2 |
| Pin 8 | D2-/CMOS_DGND — LVDS data output pair 2 negative / CMOS D-GND reference |
| Pin 9 | D3+/CMOS_D3 — LVDS data output pair 3 positive / CMOS D3 |
| Pin 10 | D3-/CMOS_DGND — LVDS data output pair 3 negative / CMOS D-GND reference |
| Pin 11 | D4+/CMOS_D4 — LVDS data output pair 4 positive / CMOS D4 |
| Pin 12 | D4-/CMOS_DGND — LVDS data output pair 4 negative / CMOS D-GND reference |
| Pin 13 | D5+/CMOS_D5 — LVDS data output pair 5 positive / CMOS D5 |
| Pin 14 | D5-/CMOS_DGND — LVDS data output pair 5 negative / CMOS D-GND reference |
| Pin 15 | D6+/CMOS_D6 — LVDS data output pair 6 positive / CMOS D6 |
| Pin 16 | D6-/CMOS_DGND — LVDS data output pair 6 negative / CMOS D-GND reference |
| Pin 17 | DRVDD — Digital output driver supply (3.3V) |
| Pin 18 | GND — Ground |
| Pin 19 | CLKOUT+ — Clock output positive (data-rate clock) |
| Pin 20 | CLKOUT- — Clock output negative |
| Pin 21 | D7+/CMOS_D7 — LVDS data output pair 7 positive / CMOS D7 |
| Pin 22 | D7-/CMOS_DGND — LVDS data output pair 7 negative / CMOS D-GND reference |
| Pin 23 | D8+/CMOS_D8 — LVDS data output pair 8 positive / CMOS D8 |
| Pin 24 | D8-/CMOS_DGND — LVDS data output pair 8 negative / CMOS D-GND reference |
| Pin 25 | D9+/CMOS_D9 — LVDS data output pair 9 positive / CMOS D9 |
| Pin 26 | D9-/CMOS_DGND — LVDS data output pair 9 negative / CMOS D-GND reference |
| Pin 27 | D10+/CMOS_D10 — LVDS data output pair 10 positive / CMOS D10 |
| Pin 28 | D10-/CMOS_DGND — LVDS data output pair 10 negative / CMOS D-GND reference |
| Pin 29 | D11+/CMOS_D11 — LVDS data output pair 11 positive / CMOS D11 |
| Pin 30 | D11-/CMOS_DGND — LVDS data output pair 11 negative / CMOS D-GND reference |
| Pin 31 | D12+/CMOS_D12 — LVDS data output pair 12 positive / CMOS D12 |
| Pin 32 | D12-/CMOS_DGND — LVDS data output pair 12 negative / CMOS D-GND reference |
| Pin 33 | D13+/CMOS_D13 — LVDS data output pair 13 positive / CMOS D13 |
| Pin 34 | D13-/CMOS_DGND — LVDS data output pair 13 negative / CMOS D-GND reference |
| Pin 35 | GND — Ground |
| Pin 36 | DRVDD — Digital output driver supply (3.3V) |
| Pin 37 | CLKM — Differential clock input negative |
| Pin 38 | CLKP — Differential clock input positive |
| Pin 39 | GND — Ground |
| Pin 40 | AVDD — Analog supply (3.3V) |
| Pin 41 | AINN — Differential analog input negative |
| Pin 42 | AINP — Differential analog input positive |
| Pin 43 | VCM — Common-mode voltage output (analog input bias) |
| Pin 44 | AVDD — Analog supply (3.3V) |
| Pin 45 | REFM — Reference decoupling (-) / bottom of internal reference ladder |
| Pin 46 | REFP — Reference decoupling (+) / top of internal reference ladder |
| Pin 47 | AVDD — Analog supply (3.3V) |
| Pin 48 | RESET — Reset / synchronization input |
Typical Applications
ADS5546IRGZ25 is suitable for 7 applications: Multi-Carrier Wireless Base-Station Receiver, Test and Measurement Digitizer Front End, Medical Ultrasound Beamformer Receive Path, Defense Radar and EW Digitizer, High-Speed Data Acquisition Card, Software-Defined Radio (SDR) IF Sampling, Portable Spectrum Analyzer Front End.
Multi-Carrier Wireless Base-Station Receiver
The ADS5546IRGZ25 is well matched to multi-carrier base-station receiver IF sampling because the 14-bit, 190 MSPS pipeline delivers 73.2-dBFS SNR and 87-dBc SFDR at a 70-MHz IF, which is sufficient to digitize multiple WCDMA/LTE carriers placed across a 60 MHz IF bandwidth without dynamic range loss. The DDR LVDS output bus minimizes the number of FPGA pin pairs needed, easing routing on congested receiver boards. With 1.1 W dissipation in a 7x7 mm VQFN, the converter fits dense 4x4 or 8x8 remote-radio-head designs where board real estate is scarce. Designers typically place a low-noise 3.3V LDO such as TPS7A4701 or TPS7A3301 upstream to preserve SNR.
Recommended
Test and Measurement Digitizer Front End
Bench-top and modular digitizers benefit from the ADS5546IRGZ25's 190 MSPS sample rate and 14-bit resolution, capturing signals up to the Nyquist frequency of 95 MHz with linearity sufficient for oscilloscope, spectrum analyzer, and arbitrary-waveform-recorder front ends. The 87-dBc SFDR at 70 MHz IF supports spurious-free dynamic range needed in production-test equipment. The selectable CMOS output mode simplifies use with lower-cost FPGA or DSP back ends, while the LVDS mode suits high-channel-count modular instruments. Care must be taken to enforce analog/digital ground separation and provide a stable low-jitter clock from a TCXO or PLL such as LMK04803.
Recommended
Medical Ultrasound Beamformer Receive Path
The ADS5546IRGZ25 is widely used in medical ultrasound receiver arrays because the 14-bit resolution and 190 MSPS sample rate comfortably satisfy the bandwidth and dynamic-range requirements of beamformer channels operating at 10-15 MHz center frequencies. The pipelined architecture's low latency suits real-time beam steering, and the LVDS output packs the ADC's full 14-bit data plus a frame flag into a compact DDR interface that is easily aggregated across 16, 32, 64, or 128 channels. The 1.1 W dissipation is acceptable within a multi-channel chassis with forced-air cooling. Heisener distributor listings confirm 3,568-piece stock as of 2026-10-11 for production builds.
Recommended
Defense Radar and EW Digitizer
Defense and electronic-warfare digitizers benefit from the ADS5546IRGZ25's 190 MSPS sample rate and excellent wideband linearity, capturing intermediate-frequency radar returns where 14-bit dynamic range and high SFDR matter most. The differential analog input accepts signal-source impedances easily driven by a balun or a fully-differential amplifier such as the THS4509. The DDR LVDS output reduces FPGA pin count, allowing compact PCI-Express or VPX module layouts. Across -40 C to +85 C operation the device meets industrial-grade environmental specs suitable for vehicle-mounted and shipboard platforms.
Recommended
High-Speed Data Acquisition Card
Modular data acquisition cards for industrial and laboratory use leverage the ADS5546IRGZ25's 190 MSPS throughput to digitize transient signals from sensors, photodiodes, or accelerometers. The 14-bit resolution provides >84 dB theoretical dynamic range, which combined with 87-dBc SFDR gives clean spectral captures of wideband signals. Pipelined ADCs like this also exhibit low kickback and low aperture jitter, simplifying front-end analog design versus older flash or successive-approximation architectures. The 48-VQFN exposed pad eases PCB thermal management in sealed card-edge modules.
Recommended
Software-Defined Radio (SDR) IF Sampling
Software-defined radio platforms use the ADS5546IRGZ25 to digitize IF stages between 30 and 90 MHz, enabling a single ADC to cover wide tuning ranges for amateur, commercial, and military waveforms. The combination of 73.2-dBFS SNR and 87-dBc SFDR at 70 MHz provides sufficient dynamic range for narrowband demodulation while sharing the front end across multiple modes. The selectable CMOS or DDR LVDS output allows integration with low-cost FPGA-based SDR boards or higher-performance DSP/FPGA designs. Care should be taken to place the ADC clock source close to the device to minimize aperture-jitter-induced SNR degradation.
Recommended
Portable Spectrum Analyzer Front End
Portable spectrum analyzers and RF test gear between 9 kHz and 95 MHz use the ADS5546IRGZ25's 190 MSPS rate to directly digitize analyzer IF bands without analog preselectors. The 14 bits and 87-dBc SFDR are sufficient for analyzer amplitude accuracy of approximately +/-0.5 dB at 70 MHz. The 1.1 W dissipation is reasonable for battery-powered analyzer designs, while the small 7x7 mm VQFN footprint leaves room for additional signal-conditioning circuitry. The selectable LVDS/CMOS output tailors the data interface to low-power or high-channel-count architectures.
Recommended
Recommended Products Summary
Engineering reference data for ADS5546IRGZ25 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADS5546IRGZR | ADS5547IRGZ25 | ADS5545IRGZ25 | ADS5546IRGZT | ADS5546IRGZTG4 |
|---|---|---|---|---|---|---|
| Package | 48-VQFN (7x7) | 48-VQFN (7x7) - same | 48-VQFN (7x7) - same | 48-VQFN (7x7) - same | 48-VQFN (7x7) - same | 48-VQFN (7x7) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Sample Rate | 190 MSPS | 190 MSPS | 210 MSPS | 170 MSPS | 190 MSPS | 190 MSPS |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit |
| Output Interface | DDR LVDS / Parallel CMOS | DDR LVDS / Parallel CMOS | DDR LVDS / Parallel CMOS | DDR LVDS / Parallel CMOS | DDR LVDS / Parallel CMOS | DDR LVDS / Parallel CMOS |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Packaging Form | Tray | Tape & Reel | Tray | Tray | Small Reel | Tape & Reel (Pb-free grade) |
Key Differentiators
- Tray packaging optimized for engineering builds (vs ADS5546IRGZR)
- 190 MSPS sample rate occupies family mid-range (vs ADS5547IRGZ25 and ADS5545IRGZ25)
- DDR LVDS output reduces FPGA pin count (vs Most competitor ADCs with parallel CMOS only)
Design Notes
Use a low-noise LDO such as TPS7A4701 for the 3.3V AVDD rail. Decouple each supply pin with a 0.1 uF X7R ceramic placed within 3 mm of the pin, plus a 10 uF bulk capacitor. Separate analog (AVDD) and digital (DRVDD) supply domains should be powered from independent LDOs to prevent digital switching noise from coupling into the analog front end and degrading SNR.
Estimated: at 1.1 W dissipation in the 48-VQFN (7x7), with a typical theta_JA of about 28 C/W on a 4-layer JEDEC test board, the junction temperature rise is approximately 31 C above ambient. With a 85 C upper ambient rating this yields a max junction near 116 C, comfortably below the 150 C datasheet limit, but a continuous-duty application in a sealed enclosure may require additional PCB copper area or airflow.
Enforce strict ground partitioning with a single connection point between analog and digital grounds, ideally under or near the exposed pad (EP). Use controlled-impedance differential routing (100 ohm differential) for AINP/AINN and CLKP/CLKM, keeping trace lengths matched within 0.13 mm to preserve SNR. Place the VCM bypass capacitor (0.1 uF) adjacent to the VCM pin to provide a stable common-mode bias for the analog input stage.
Do not exceed the absolute maximum analog input of +/-2 V or apply DC before the part is powered; a 50 ohm termination at the analog input is recommended. The RESET pin must be de-asserted only after AVDD is stable, and clock sources must have low phase noise (below 1 ps RMS jitter) to avoid degrading SNR. Use a high-performance clock generator such as LMK04803 if the system oscillator is not adequate.
Match the lengths of all LVDS output pairs to within the timing budget of your FPGA. Keep DDR LVDS traces at 100-ohm differential impedance and avoid sharp 90-degree bends; use rounded or 45-degree bends instead. If using CMOS mode, add 22-33 ohm series resistors to dampen reflections on the longer parallel bus; LVDS mode typically does not need series resistors due to its current-mode drivers.
Compliance Information
Texas Instruments confirms RoHS and REACH compliance per the TI ADS5546 datasheet and product page. The part is not AEC-Q100 qualified - for automotive applications use the qualified version if available, or consult TI for an automotive-grade equivalent. The Z25 suffix denotes tray packaging but is fully Pb-free/lead-free.
