ADS6423IRGCR - Quad 12-Bit 80MSPS Serial LVDS ADC | TI
MPN: ADS6423IRGCR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.45 | $2,845.00 |
| 500 | $24.1 | $12,050.00 |
| 1,000 | $21.85 | $21,850.00 |
ADS6423IRGCR Overview
An ADC (analog-to-digital converter) is a semiconductor device that samples continuous analog input voltages and converts them into discrete digital codes. Pipelined ADCs use a cascade of low-resolution stages with inter-stage residue amplifiers to achieve high sampling rates while maintaining good linearity; the ADS6423 follows this architecture to deliver 80 MSPS across four independent channels. Within the broader power and signal chain, the ADC sits between analog front-ends (amplifiers, anti-alias filters) and an FPGA or ASIC that processes the digital data.
Key specifications include 12-bit resolution, 80 MSPS sampling rate, serialized LVDS digital interface, internal 3.5-dB coarse gain option for improved SFDR at high input frequencies, and a 3.3-V analog and digital supply. No external decoupling is required for the internal references, simplifying PCB layout. The 64-pin VQFN package integrates dense LVDS routing and provides a thermal pad for dissipation under multi-channel full-rate operation.
With 12-bit resolution and 80 MSPS sampling, the ADS6423IRGCR suits medical imaging front-ends, multi-channel communications receiver IF digitizers, radar signal acquisition, and industrial test instrumentation. Compared to dual-channel ADCs, the four-channel integration cuts board area, channel-to-channel skew, and per-channel cost. Compared to lower-speed SAR ADCs, the pipelined 80 MSPS architecture captures wideband modulated signals with minimal aperture jitter.
When designing with this part, route the LVDS pairs with controlled 100-ohm differential impedance, decouple AVDD and DVDD with 1 µF and 0.1 µF ceramics close to the pins, and tie the exposed thermal pad to a solid ground plane to keep junction temperature within the -40 °C to +85 °C operating range. Buffer or transform-couple analog inputs to keep common-mode voltage within the input common-mode range.
This page combines manufacturer datasheet specifications, distributor pricing tiers, and a same-family drop-in analysis to help engineers select pin-compatible ADCs for compact multi-channel systems at 80 MSPS.
Drop-in alternatives for ADS6423IRGCR — 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 ADS6423IRGCR (same form factor and footprint) — differing in Package, Number of Channels, Resolution, Digital Supply Voltage, Input Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADS6424IRGCR
✅ Drop-In📋 Reference alternative (not in catalog)
ADS6422IRGCR
✅ Drop-In📋 Reference alternative (not in catalog)
ADS6423IRGCT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADS6443IRGCR
✅ Drop-In✓ In Stock
$21.2 / Unit
View Datasheet →ADS6423IRGCRG4
✅ Drop-In📋 Reference alternative (not in catalog)
ADS6423IRGCR Maximum Ratings & Electrical Characteristics
| Manufacturer | Texas Instruments |
| Part Number | ADS6423IRGCR |
| Resolution | 12 bit |
| Number of Channels | 4 (Quad) |
| Sampling Rate | 80 MSPS |
| Architecture | Pipelined |
| Digital Interface | Serial LVDS (1-wire / 2-wire) |
| Number of Inputs | 4 differential |
| Analog Supply Voltage | 3.3 V |
| Digital Supply Voltage | 3.3 V |
| Package | 64-VQFN EP, 9 mm × 9 mm (RGC) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 °C to +85 °C |
| Internal Reference | Yes (no external decoupling required) |
| Coarse Gain Option | 3.5 dB |
| RoHS Status | Compliant |
ADS6423IRGCR Pin Configuration
| Pin 1 | AVDD — Analog supply voltage (3.3 V) |
| Pin 17 | AVSS — Analog ground |
| Pin 33 | CLKIN — LVDS-compatible external clock input (sample rate) |
| Pin 49 | DRVDD — Digital driver supply (3.3 V for LVDS) |
| Pin 50 | DRVSS — Digital driver ground |
| Pin 64 | PAD — Exposed thermal pad - tie to clean analog ground |
Typical Applications
ADS6423IRGCR is suitable for 6 applications: Medical Ultrasound Imaging Front-End, Multi-Channel Communications IF Receiver, Radar and Lidar Wideband Digitization, Industrial Test and Measurement Instrumentation, Multi-Channel Data Acquisition Card, Broadcast Video Production Switchers.
Medical Ultrasound Imaging Front-End
The ADS6423IRGCR fits medical ultrasound front-ends because its four simultaneously-sampled channels align with ultrasound transducer arrays that digitize multiple receive beams in parallel. At 12-bit resolution and 80 MSPS per channel, it captures returning echoes with sufficient dynamic range for tissue harmonic imaging, while serialized LVDS outputs compress four parallel buses into one to ease cable and connector pinout. The 64-pin VQFN package enables high channel density on small receiver boards where space is constrained near the transducer housing.
Recommended
Multi-Channel Communications IF Receiver
In multi-carrier communications IF stages, the ADS6423IRGCR digitizes up to four intermediate-frequency channels at 80 MSPS, enabling parallel receivers for diversity or MIMO antennas. The pipelined 12-bit architecture maintains good SFDR at high IF frequencies, while internal reference and 3.5-dB coarse gain maximize linearity at the input. Its serialized LVDS interface pairs naturally with FPGA transceivers on baseband cards without adding bus-width to the backplane.
Recommended
Radar and Lidar Wideband Digitization
The ADS6423IRGCR handles wideband radar and lidar digitization by delivering four channels of 80 MSPS, 12-bit data into serialized LVDS, a fit for phased-array radar beam-formers where multiple receive channels must be sampled simultaneously. The pipelined architecture preserves aperture timing across all four channels, which is critical for accurate beamforming angle-of-arrival estimation. Compact 9 mm × 9 mm QFN packaging permits dense placement close to the antenna front-end to minimize analog routing losses.
Recommended
Industrial Test and Measurement Instrumentation
In industrial test equipment such as automated test stands or waveform recorders, the ADS6423IRGCR provides four 80 MSPS capture channels into a single 64-pin QFN footprint, reducing both per-channel cost and board area. Its DC-accurate 12-bit conversion handles transducer outputs from current shunts, strain gauges, and accelerometers in multi-axis test rigs. Serialized LVDS transfers data to a host FPGA over a small pin count, leaving room for additional channels on the same backplane.
Recommended
Multi-Channel Data Acquisition Card
Multi-channel DAQ cards built around the ADS6423IRGCR leverage its quad-channel architecture to capture four analog inputs at 80 MSPS each from a single 64-pin QFN. Each channel feeds a serialized LVDS stream to a host FPGA or DSP, allowing modular PCIe or PXI-style digitizer cards to scale channel count by stacking additional ADC devices. The package's exposed thermal pad simplifies heat dissipation on densely populated DAQ boards.
Recommended
Broadcast Video Production Switchers
Professional broadcast switchers using the ADS6423IRGCR benefit from four 80 MSPS, 12-bit channels per device to digitize multi-format video streams in a compact chassis. The serialized LVDS data delivery allows a single ADC to feed a downstream FPGA-based processing block over a minimal pin count, reducing board area and EMI. Internal reference and 3.3-V operation keep the power tree simple in space-constrained studio environments.
Recommended
Recommended Products Summary
Engineering reference data for ADS6423IRGCR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADS6424IRGCR | ADS6422IRGCR | ADS6423IRGCRG4 | ADS6443IRGCR |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 64-VQFN (RGC) 9 mm × 9 mm | 64-VQFN (RGC) 9 mm × 9 mm - same | 64-VQFN (RGC) 9 mm × 9 mm - same | 64-VQFN (RGC) 9 mm × 9 mm - same | 64-VQFN (RGC) 9 mm × 9 mm - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 14 bit |
| Sampling Rate | 80 MSPS | 105 MSPS (+31%) | 65 MSPS (-19%) | 80 MSPS | 80 MSPS |
| Channels | 4 | 4 | 4 | 4 | 4 |
| Digital Interface | Serial LVDS (1-wire / 2-wire) | Serial LVDS (1-wire / 2-wire) | Serial LVDS (1-wire / 2-wire) | Serial LVDS (1-wire / 2-wire) | Serial LVDS (1-wire / 2-wire) |
| Analog Supply Voltage | 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 |
| Qty-1 Unit Price (approx.) | USD 38.50 | USD ~48.00 | USD ~32.00 | USD ~38.50 | USD ~55.00 |
Key Differentiators
- Pin-compatible across the ADS642X (12-bit) and ADS644X (14-bit) families (vs ADS6422IRGCR)
- Faster sample rate than the 65 MSPS option in the same family (vs ADS6422IRGCR)
- Lower cost than 14-bit family member at same sample rate (vs ADS6443IRGCR)
Design Notes
Route the four analog inputs with matched-length differential pairs, keeping the 100 Ω differential impedance controlled and physically short. Place a 1 µF and a 0.1 µF ceramic bypass close to each AVDD pin. The exposed thermal pad must be soldered to a clean analog ground pour with multiple vias, both to manage power dissipation and to provide a low-impedance return for the analog inputs.
Provide the 80 MHz LVDS-compatible clock to the CLKIN input through a transformer-coupled driver or low-jitter clock generator; sub-200 fs aperture jitter is essential to preserve SNR at 80 MSPS. Place series termination matching the 100 Ω differential impedance directly at the clock source to minimize reflections. Keep the clock trace well-isolated from noisy digital outputs.
Do not exceed the AVDD supply voltage of 3.3 V; the device is not tolerant to 5 V. The internal reference needs no external decoupling on the REFT/REFB pins - adding caps can cause startup issues. If the input common-mode voltage falls outside the rated range, distortion increases sharply; use a fully-differential ADC driver such as THS4521 to set the correct common-mode level.
Compliance Information
RGC suffix denotes TI's lead-free, RoHS-compliant packaging. AEC-Q100 qualification not stated in TI product page; use an automotive-grade TI ADC for vehicle applications.
