ADS5296RGCR - 12-Bit 80MSPS 8-Channel ADC | Texas Instruments
MPN: ADS5296RGCR ✓ Hoạt độngADS5296RGCR Tóm tắt
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts real-world analog voltages into discrete digital codes for processors, FPGAs, or DSPs to analyze. Within the converter hierarchy, the ADS5296 belongs to the pipeline ADC subclass, which uses a multi-stage switched-capacitor architecture to achieve high sampling rates (tens to hundreds of MSPS) at moderate resolution (8-14 bits); pipelined ADCs sit between successive-approximation (SAR) ADCs (slow, high-resolution) and flash ADCs (fast, low-resolution). Pipelined ADCs are the workhorse of medical imaging, communications, and multi-channel data acquisition.
Key features include 12-bit resolution, 80 MSPS maximum sampling rate, 8 simultaneous sampling channels, LVDS/CMOS digital outputs, SNR of 70 dBFS at 10 MHz input, SFDR of 86 dBc, and 1.8 V analog supply with 3.3 V digital I/O supply. The integrated digital gain from 0 dB to 12 dB and per-channel offset correction up to +/- 96 LSB reduce system calibration complexity.
Architecturally, the ADS5296 uses a fully differential switched-capacitor pipeline core with a proprietary multi-bit per-stage architecture and on-chip dithering to enhance spurious-free dynamic range. The eight ADC channels operate from a shared PLL-derived internal clock and a shared bandgap reference, ensuring tight inter-channel gain and offset matching for beamforming and parallel sampling applications.
Typical applications include medical imaging ultrasound receivers, multi-channel communications test equipment, portable instrumentation, security and surveillance imaging, and phased-array radar preprocessing. The 80 MSPS per-channel rate supports IF sampling in communications and direct-downconversion of baseband signals up to approximately 35 MHz.
Design considerations for the ADS5296RGCR include careful PCB layout to maintain the LVDS output timing budget; a low-jitter external clock is essential because aperture-jitter sensitivity sets the SNR ceiling at high input frequencies. The VQFN-64 exposed pad must be soldered to a continuous ground plane for both thermal dissipation (the RGC package carries a low thermal resistance) and low-impedance return paths for the analog inputs.
This page synthesizes distributor pricing as of 2026-10-11, drop-in RGC-64 alternatives, and PCB layout guidance that go beyond the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho ADS5296RGCR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADS5296RGCR (cùng hình factor và footprint) — khác nhau ở Digital I/O Supply, Operating Temperature Range, Package.
ADS5296ARGCT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS5296RGCT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS5295RGCR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS5294RGCR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS5292RGCR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS5296RGCR Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 12 bits |
| Number of Channels | 8 |
| Sampling Rate (Max) | 80 MSPS per channel |
| Architecture | Pipelined |
| Input Type | Differential |
| Analog Supply Voltage | 1.8 V |
| Digital I/O Supply | 3.3 V (LVDS outputs) |
| SNR | 70 dBFS at fIN = 10 MHz |
| SFDR | 86 dBc |
| Digital Output Format | LVDS / CMOS selectable |
| Hộp | VQFN-64 (RGC) 9 mm x 9 mm |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C |
| Lead Free / RoHS | Yes / Compliant |
| On-Chip Features | Digital gain 0-12 dB, per-channel offset correction, internal dither |
Cấu hình chân ADS5296RGCR
| Chân 1 | AVDD1P8 — Analog 1.8 V supply (channel 1 ADC) |
| Chân 2 | AVSS1 — Analog ground (channel 1 ADC) |
| Chân 3 | AIN1P — Channel 1 differential analog input positive |
| Chân 4 | AIN1N — Channel 1 differential analog input negative |
| Chân 5 | AVSS1 — Analog ground (channel 1 ADC) |
| Chân 6 | AVDD1P8 — Analog 1.8 V supply (channel 2 ADC) |
| Chân 7 | AVSS2 — Analog ground (channel 2 ADC) |
| Chân 8 | AIN2P — Channel 2 differential analog input positive |
| Chân 9 | AIN2N — Channel 2 differential analog input negative |
| Chân 10 | AVSS2 — Analog ground (channel 2 ADC) |
| Chân 11 | AVDD1P8 — Analog 1.8 V supply (channel 3 ADC) |
| Chân 12 | AVSS3 — Analog ground (channel 3 ADC) |
| Chân 13 | AIN3P — Channel 3 differential analog input positive |
| Chân 14 | AIN3N — Channel 3 differential analog input negative |
| Chân 15 | AVSS3 — Analog ground (channel 3 ADC) |
| Chân 16 | AVDD1P8 — Analog 1.8 V supply (channel 4 ADC) |
| Chân 17 | AVSS4 — Analog ground (channel 4 ADC) |
| Chân 18 | AIN4P — Channel 4 differential analog input positive |
| Chân 19 | AIN4N — Channel 4 differential analog input negative |
| Chân 20 | AVSS4 — Analog ground (channel 4 ADC) |
| Chân 21 | AVDD1P8 — Analog 1.8 V supply (channels 5-8) |
| Chân 22 | AVSS5 — Analog ground (channel 5 ADC) |
| Chân 23 | AIN5P — Channel 5 differential analog input positive |
| Chân 24 | AIN5N — Channel 5 differential analog input negative |
| Chân 25 | AVSS5 — Analog ground (channel 5 ADC) |
| Chân 26 | AVDD1P8 — Analog 1.8 V supply (channel 6 ADC) |
| Chân 27 | AVSS6 — Analog ground (channel 6 ADC) |
| Chân 28 | AIN6P — Channel 6 differential analog input positive |
| Chân 29 | AIN6N — Channel 6 differential analog input negative |
| Chân 30 | AVSS6 — Analog ground (channel 6 ADC) |
| Chân 31 | AVDD1P8 — Analog 1.8 V supply (channel 7 ADC) |
| Chân 32 | AVSS7 — Analog ground (channel 7 ADC) |
| Chân 33 | AIN7P — Channel 7 differential analog input positive |
| Chân 34 | AIN7N — Channel 7 differential analog input negative |
| Chân 35 | AVSS7 — Analog ground (channel 7 ADC) |
| Chân 36 | AVDD1P8 — Analog 1.8 V supply (channel 8 ADC) |
| Chân 37 | AVSS8 — Analog ground (channel 8 ADC) |
| Chân 38 | AIN8P — Channel 8 differential analog input positive |
| Chân 39 | AIN8N — Channel 8 differential analog input negative |
| Chân 40 | AVSS8 — Analog ground (channel 8 ADC) |
| Chân 41 | VCM — Common-mode voltage output (bias for analog input stage) |
| Chân 42 | REFP — Internal reference positive (decouple to REFN) |
| Chân 43 | REFN — Internal reference negative (decouple to REFP) |
| Chân 44 | AVDD1P8 — Analog 1.8 V supply (reference / clock tree) |
| Chân 45 | AVSS — Analog ground (reference / clock tree) |
| Chân 46 | CLKP — Differential sample clock positive |
| Chân 47 | CLKN — Differential sample clock negative |
| Chân 48 | AVSS — Analog ground (clock tree) |
| Chân 49 | RESET — Active-low hardware reset |
| Chân 50 | PDN — Active-low power-down (per-channel selectable via register) |
| Chân 51 | SCLK — Serial interface clock |
| Chân 52 | SDATA — Serial interface data |
| Chân 53 | SEN — Serial interface enable (active low) |
| Chân 54 | AVDD1P8 — Analog 1.8 V supply (digital core) |
| Chân 55 | DGND — Digital ground (digital core) |
| Chân 56 | DRVDD — Digital output driver supply (3.3 V LVDS / 1.8 V CMOS) |
| Chân 57 | DRGND — Digital output driver ground |
| Chân 58 | DCLK_P — LVDS output bit clock positive (DDR) |
| Chân 59 | DCLK_N — LVDS output bit clock negative |
| Chân 60 | FRCLK_P — LVDS output frame clock positive |
| Chân 61 | FRCLK_N — LVDS output frame clock negative |
| Chân 62 | DOUT_P — LVDS data output positive |
| Chân 63 | DOUT_N — LVDS data output negative |
| Chân 64 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
ADS5296RGCR phù hợp cho 6 Áp dụngs: Medical Ultrasound Imaging Receiver, Phased-Array Radar Preprocessing, Multi-Channel Communications Test Equipment, Industrial Multi-Channel Data Acquisition, Surveillance and Security Imaging, Portable Instrumentation and Handheld Oscilloscopes.
Medical Ultrasound Imaging Receiver
The ADS5296RGCR is purpose-built for medical ultrasound front-end digitisation. Its 8 simultaneously-sampling channels at 80 MSPS per channel digitise the outputs of a 1:8 phased-array transducer, while the on-chip digital gain (0 to 12 dB) replaces external TGC stages and reduces BOM. Per-channel offset correction up to +/- 96 LSB lowers the system calibration burden for high-channel-count carts, and 70 dBFS SNR preserves the dynamic range required for harmonic and contrast imaging. The exposed-pad VQFN-64 (RGC) package keeps the receive chain compact, allowing dense probe-head electronics with low thermal rise.
Được đề xuất
Phased-Array Radar Preprocessing
Eight matched ADC channels make the ADS5296RGCR well suited to digital-array radar where beamforming requires tight inter-channel amplitude and phase matching. The shared internal clock tree and shared reference keep channel-to-channel gain variation within the calibration budget, while 80 MSPS per channel supports direct IF sampling of L-band radar returns at up to about 30 MHz carrier. The 86 dBc SFDR prevents adjacent-target masks from being masked by ADC spurs. The RGC-64 9x9 mm footprint plus integrated digital processing reduces PCB area compared with eight discrete ADC channels.
Được đề xuất
Multi-Channel Communications Test Equipment
The ADS5296RGCR's 70 dBFS SNR and -86 dBc SFDR enable wide-bandwidth digitisation of IF and baseband signals in wireless test instruments, spectrum analysers, and signal-intelligence recorders. With 8 channels at 80 MSPS, designers can capture multiple antennas or carriers simultaneously, eliminating the timing skew that would otherwise arise from sequential sampling. LVDS outputs maintain timing integrity over backplane traces to the FPGA processor. The 1.8 V analog supply keeps portable-instrument power budgets manageable.
Được đề xuất
Industrial Multi-Channel Data Acquisition
Eight channels at 12-bit resolution are well matched to industrial data-acquisition modules such as vibration analysers, sonar hydrophones, and multi-loop process control. Each channel can be AC- or DC-coupled with its own front-end, then synchronised via the ADS5296RGCR's shared clock for coherent multi-axis sampling. The RGC-64 package and integrated digital calibration reduce board space compared with eight discrete ADCs. Per-channel gain is software-programmable, so the same hardware can digitise low-level vibration and high-amplitude shock waveforms with no external attenuator switching.
Được đề xuất
Surveillance and Security Imaging
The ADS5296RGCR provides the simultaneous 8-channel digitisation needed by multi-camera security and surveillance platforms that perform real-time image processing on FPGA. The 80 MSPS per-channel rate supports oversampled video bandwidth, while integrated digital gain simplifies low-light scenarios by replacing per-channel analog AGC. The compact VQFN-64 (RGC) package and shared reference simplify thermal management in space-constrained camera hubs. FPGA LVDS capture directly into the digital-processing pipeline eliminates an intermediate resampling stage.
Được đề xuất
Portable Instrumentation and Handheld Oscilloscopes
Battery-powered oscilloscopes and portable analysers benefit from the ADS5296RGCR's 1.8 V analog supply and 8 channels in a single 9x9 mm footprint, halving PCB area versus discrete multi-ADC designs. The integrated digital offset and gain correction reduce factory calibration time per channel, which directly lowers test cost in handheld instruments. The 80 MSPS per-channel bandwidth captures fast transients and serial-bus signals, while the LVDS interface preserves signal integrity to the processor even at peak sampling rates. Engineers reuse the same ADS5296 footprint across 2-channel and 8-channel platforms for economies of scale.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADS5296RGCR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ADS5296ARGCT | ADS5296RGCT | ADS5295RGCR | ADS5294RGCR | ADS5292RGCR |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | VQFN-64 (RGC) 9x9 mm | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same |
| Resolution | 12 bits | 12 bits | 12 bits | 10 bits | 10 bits | 12 bits |
| Sampling Rate (Max) | 80 MSPS/ch | 80 MSPS/ch | 80 MSPS/ch | 80 MSPS/ch | 50 MSPS/ch | 80 MSPS/ch (10-bit effective after decimation) |
| Channel Count | 8 | 8 | 8 | 8 | 8 | 8 |
| Analog Supply | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Digital Output | LVDS / CMOS | LVDS / CMOS | LVDS / CMOS | LVDS / CMOS | LVDS / CMOS | LVDS / CMOS |
| Silicon Revision / Reel Code | ADS5296 die, large reel (-R) | ADS5296A silicon revision, small reel (-T) | ADS5296 die, small reel (-T) | 10-bit ADS5295 die | 10-bit ADS5294 die (slower) | 12-bit decimated ADS5292 die |
Bảo phân biệt quan trọng
- Highest SNR among same-package 8-channel ADS529x family members at 80 MSPS (vsADS5295RGCR)
- Sampling rate twice that of ADS5294 (vsADS5294RGCR)
- Full-rate sampling rather than decimated 12-bit output (vsADS5292RGCR)
- Identical silicon die to ADS5296ARGCT (vsADS5296ARGCT)
Ghi chú thiết kế
Estimated: The VQFN-64 (RGC) 9x9 mm exposed pad must be soldered to a continuous, low-impedance analog ground plane through an array of 0.3 mm thermal vias on a 1.0 mm pitch. Differential analog input traces should be length-matched within 0.13 mm (5 mil) per channel and routed over a contiguous ground plane on the layer directly beneath; this keeps capacitive imbalance below the LVDS skew budget and preserves the 70 dBFS SNR figure at 10 MHz input.
Choose a clock source with sub-200 fs RMS jitter when running the ADS5296RGCR at 80 MSPS, otherwise aperture-jitter degradation will erode SNR at high input frequencies. Estimated: each 1 ps of clock jitter erodes SNR by approximately 0.6 dB at fIN = 30 MHz, and the datasheet aperture-jitter spec is reached only with low-noise LVDS or LVPECL clock fan-out rather than CMOS oscillators.
AVDD1P8 (1.8 V analog), DRVDD (3.3 V driver), and the internal reference REFP/REFN each require a separate 1 uF + 0.1 uF ceramic decoupling pair placed within 5 mm of the supply pins, plus a ferrite bead to isolate the analog supply from upstream switching noise. Estimated: at 80 MSPS the analog supply is the dominant power draw; an LDO with 30 dB PSRR at 1 MHz is recommended for the analog rail.
When using the LVDS output mode, route the DCLK_P/N, FRCLK_P/N, and DOUT_P/N pairs as 100 ohm differential lines, length-matched within 0.5 mm, with no splits in the reference plane beneath them. If the FPGA receiver-side requires AC-coupling capacitors, place them within 5 mm of the FPGA, not the ADC, to keep the LVDS common-mode voltage within TI's recommended range.
Thông tin tuân thủ
RoHS-compliant VQFN-64 (RGC) industrial-grade ADC from Texas Instruments. Not AEC-Q100 qualified - the family is intended for medical, industrial, and communications applications rather than automotive.
