ADS6243IRGZR - Dual 14-Bit 80MSPS ADC w/ LVDS | Texas Instruments
MPN: ADS6243IRGZR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.65 | $256.50 |
| 100 | $22.8 | $2,280.00 |
| 500 | $20.5 | $10,250.00 |
| 1,000 | $18.75 | $18,750.00 |
ADS6243IRGZR Overview
An ADC (analog-to-digital converter) is a data-conversion integrated circuit that samples continuous analog voltages and quantizes them into discrete digital codes for processing by DSPs, FPGAs, or microcontrollers. Pipelined ADCs like the ADS6243 use a multi-stage architecture that converts one sample per clock cycle after a fixed latency, combining high throughput with small die area. Within the broader data-converter taxonomy, the ADS6243 sits under high-speed ADCs -> Nyquist-rate ADCs -> pipeline ADCs -> mixed-signal ICs.
Key features include 14-bit resolution with guaranteed no missing codes, simultaneous sample-and-hold on both channels, 3.5 dB coarse gain plus up to 6 dB programmable fine gain for SFDR/SNR trade-off, serialized LVDS outputs that reduce pin count and ease board routing, internal reference with external reference support, and a 3.3-V analog/digital supply. The LVDS interface delivers data over a small number of differential pairs, minimizing EMI in dense multi-channel designs.
Architecturally the device uses a switched-capacitor pipelined front end with on-chip reference buffer and integrated LVDS drivers. The simultaneous dual sample-and-hold simplifies front-end alignment for I/Q or diversity receivers, while the programmable gain allows per-channel SFDR optimization. According to the Texas Instruments datasheet, the pin-compatible 12-bit family is the ADS622X and the feature-compatible quad-channel family is the ADS644X/ADS642X.
Typical applications include multi-channel wireless infrastructure receivers, medical imaging front ends, radar and sonar signal processing, and high-speed instrumentation. The wide input common-mode range down to 400 mVpp supports direct-IF sampling in cost-sensitive designs.
When designing with this part, choose the input-driver op amp (e.g., THS4503 or OPA695) and anti-alias filter topology carefully because the 80 MSPS input bandwidth is well above the Nyquist limit and any front-end distortion directly degrades SFDR.
This page synthesizes verified distributor pricing, drop-in same-package alternatives from the ADS6xxx family, and practical design notes that go beyond what is printed in the manufacturer datasheet.
Drop-in alternatives for ADS6243IRGZR — 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 ADS6243IRGZR (same form factor and footprint) — differing in Number of Channels, Output Interface, Package, Resolution, Input Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADS6243IRGZT
✅ Drop-In📋 Reference alternative (not in catalog)
ADS6242IRGZ25
✅ Drop-In📋 Reference alternative (not in catalog)
ADS6245IRGZT
✅ Drop-In📋 Reference alternative (not in catalog)
ADS6244IRGZR
✅ Drop-In📋 Reference alternative (not in catalog)
ADS6225IRGZT
✅ Drop-In📋 Reference alternative (not in catalog)
ADS6224IRGZR
✅ Drop-In✓ In Stock
$16.8 / Unit
View Datasheet →ADS6243IRGZR Maximum Ratings & Electrical Characteristics
| Resolution | 14 bit |
| Number of Channels | 2 (dual, simultaneous sample-and-hold) |
| Sample Rate | 80 MSPS |
| Family Sample Rates | 65 / 80 / 105 / 125 MSPS (ADS6243 = 80 MSPS) |
| Architecture | Pipelined |
| Input Type | Differential |
| Output Interface | Serialized LVDS |
| Analog Supply Voltage | 3.3 V |
| Digital Supply Voltage | 3.3 V |
| Analog Input Range | 0 to 2 V (configurable; minimum 400 mVpp amplitude) |
| Coarse Gain | 3.5 dB |
| Programmable Fine Gain | up to 6 dB (SFDR/SNR trade-off) |
| Reference | Internal with external reference support |
| Package | 48-VQFN (RGZ) 7x7 mm |
| Operating Temperature Range | -40 C to +85 C (industrial) |
| Pin-Compatible 12-bit Family | ADS622X |
| Pin-Compatible Quad Family | ADS644X / ADS642X |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ADS6243IRGZR 48-vqfn (rgz) 7x7 mm Pin Configuration Guide
Pin configuration for ADS6243IRGZR (48-vqfn (rgz) 7x7 mm package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for ADS6243IRGZR.
Refer to the datasheet for full pin configuration.
Typical Applications
ADS6243IRGZR is suitable for 6 applications: Multi-Carrier Wireless Base-Station Receiver, Medical Ultrasound Imaging Front End, Radar and Sonar Signal Processing, High-Speed Test and Measurement Instrumentation, Software-Defined Radio Wideband Digitizer, Industrial Process Control Vibration Sensing.
Multi-Carrier Wireless Base-Station Receiver
The ADS6243IRGZR fits multi-carrier wireless base-station receivers because the dual simultaneous sample-and-hold pairs naturally with diversity or I/Q channel processing. With 80 MSPS per channel it captures multi-carrier GSM/UMTS/LTE signals at a 30.72 MHz LTE IF or higher intermediate frequencies with margin, while the serialized LVDS output keeps board traces minimal between the ADC and the FPGA baseband processor. The 14-bit resolution gives >80 dB SFDR when paired with a low-noise differential driver such as the THS4503, which is sufficient for 3GPP ACLR compliance in macro cells. The pin-compatible quad-channel ADS644x family lets designers scale channel count without PCB rework.
Recommended
Medical Ultrasound Imaging Front End
In medical ultrasound imaging the ADS6243IRGZR sits at the front end of the beamformer, digitizing each channel after the LNA and TGC stages. The dual-channel integration reduces BOM count compared to single-channel ADCs, while the 80 MSPS sample rate comfortably captures 40 MHz probe bandwidth for 4D imaging. The 3.5 dB coarse gain plus 6 dB programmable fine gain lets designers trade SNR for SFDR depending on penetration depth, and the serialized LVDS output minimizes coupling into sensitive analog stages. Pin compatibility with the 12-bit ADS622x family also lets the same PCB support premium and value-tier probes.
Recommended
Radar and Sonar Signal Processing
The ADS6243IRGZR suits radar and sonar signal-processing systems that demand simultaneous sampling of I and Q channels followed by high-throughput digital down-conversion. The 80 MSPS sample rate cleanly captures 20 MHz IF bandwidth for surveillance radar or narrowband sonar returns with margin, while 14-bit resolution preserves dynamic range needed for detecting small targets in clutter. The LVDS serial output reduces board congestion in dense phased-array panels where 32+ ADC channels fan into one FPGA. The 3.3-V analog supply simplifies power-tree design alongside other signal-chain components from the same rail.
Recommended
High-Speed Test and Measurement Instrumentation
The ADS6243IRGZR is well matched to automated test equipment and benchtop oscilloscope front ends that require simultaneous high-resolution sampling on two channels. The 14-bit no-missing-codes performance preserves measurement integrity across temperature, while the 80 MSPS rate captures 35 MHz analog input bandwidth at full resolution - matching the bandwidth of mid-band digitizer cards. Programmable fine gain lets the same board span high-amplitude and small-signal measurements, reducing calibration overhead in production ATE racks. The serialized LVDS interface lands cleanly into a mid-range FPGA or DSP processor for triggering and storage.
Recommended
Software-Defined Radio Wideband Digitizer
In software-defined radio platforms the ADS6243IRGZR digitizes a wide IF or low-RF block directly, enabling the FPGA or DSP to perform channelization, demodulation, and decoding entirely in software. The dual simultaneous sample-and-hold is ideal for I/Q capture at zero-IF or low-IF, and 14-bit dynamic range supports modern digital-radio waveforms with crest-factor tolerance. At 80 MSPS the part accommodates LTE 20 MHz, full-bandwidth DVB-T, and most narrowband tactical radio signals with headroom. The 3.3-V supply simplifies integration with the rest of the SDR signal chain.
Recommended
Industrial Process Control Vibration Sensing
Process-control vibration-monitoring cards use the ADS6243IRGZR to digitize two-axis accelerometer signals simultaneously so phase between X and Y axes is preserved for FFT analysis. The 80 MSPS rate captures high-frequency bearing-fault signatures that lower-speed ADCs would alias, and 14-bit resolution gives sufficient dynamic range for runout/fault separation. The serialized LVDS output reduces trace count so multiple cards can populate a single industrial rack. Industrial temperature grade (-40 to +85 C) and pin compatibility with the 12-bit ADS622x family let designers reuse a single PCB across monitoring equipment tiers.
Recommended
Recommended Products Summary
Engineering reference data for ADS6243IRGZR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADS6243IRGZT | ADS6242IRGZ25 | ADS6245IRGZT | ADS6244IRGZR | ADS6225IRGZT | ADS6224IRGZR |
|---|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 48-VQFN (RGZ) 7x7 mm | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit | 12 bit | 12 bit |
| Sample Rate | 80 MSPS | 80 MSPS | 65 MSPS | 105 MSPS | 105 MSPS | 125 MSPS | 80 MSPS |
| Number of Channels | 2 (dual, simultaneous S/H) | 2 | 2 | 2 | 2 | 2 | 2 |
| Output Interface | Serialized LVDS | Serialized LVDS | Serialized LVDS | Serialized LVDS | Serialized LVDS | Serialized LVDS | Serialized LVDS |
| Analog Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Pin-Compatible Family Notes | Base 14-bit 80 MSPS | Reel-orientation variant | Lower-speed (65 MSPS) | Higher-speed (105 MSPS) | Higher-speed (105 MSPS) | 12-bit pin-compatible per TI | 12-bit pin-compatible per TI |
Key Differentiators
- Pin-compatible speed-grade scalability in same 48-VQFN footprint (vs ADS6242IRGZ25)
- Higher dynamic range than 12-bit pin-compatible family (vs ADS6225IRGZT)
- Reel-orientation flexibility (vs ADS6243IRGZT)
Design Notes
Use a solid ground plane on layer 2 directly under the ADS6243IRGZR VQFN footprint. Route the analog inputs as 100-ohm differential pairs (V_in+ and V_in-) from the driver op amp to the ADC pins, keeping traces short and matching length within 1 mm. Per the Texas Instruments datasheet, isolated analog and digital grounds must meet under the AGND/DGND pins only, otherwise ground bounce couples into the analog front end and degrades SFDR.
Decouple the AVDD and DRVDD rails individually with 0.1 uF X7R ceramic capacitors placed as close as possible to each supply pin, plus a 10 uF bulk tantalum or ceramic near the IC. Avoid sharing decoupling between analog and digital pins. Estimated: with the device consuming approximately 250 mW at 80 MSPS, total supply current is on the order of 80 mA on each rail, which the local decoupling must supply without ringing.
The serialized LVDS output pairs (data, frame clock) should be routed as 100-ohm differential microstrip on the top layer, with length matching within 0.5 mm and no more than two vias per pair. Keep at least 3W spacing from any other single-ended trace. Common-mode chokes (e.g., DLW21SN) help suppress common-mode noise from crossing into the FPGA bank.
Do not exceed the 2 V analog input common-mode range or swing below 400 mVpp - both will clip or compress the input stage. The internal reference supports external override; when using external mode, ensure the reference voltage is stable before applying analog input or the part will produce spurious codes on startup. Per the datasheet, the input clock must be a low-jitter LVDS or LVPECL source: a CMOS clock with > 5 ps RMS jitter will measurably degrade SNR.
Compliance Information
RoHS and lead-free per TI product page; halogen-free status not explicitly stated in verified data. Industrial-grade only - no AEC-Q100 automotive variant exists in the verified web data.
