THS10082CDAG4 - 10-Bit 8 MSPS Dual-Channel ADC, 32-TSSOP | TI
MPN: THS10082CDAG4 ✓ Hoạt độngTHS10082CDAG4 Tóm tắt
An ADC (analog-to-digital converter) is a data-conversion integrated circuit that translates continuous-time analog voltage signals into discrete digital codes at a specified sample rate. The THS10082 belongs to the pipelined ADC sub-family of successive-approximation/pipeline hybrid converters used for medium-speed, multi-channel acquisition; it sits within the broader data-converter IC hierarchy under signal-chain and data-acquisition semiconductors. Its dual-channel, simultaneous-sampling architecture makes it specifically suited for capturing paired signals (such as I/Q or voltage/current) without inter-channel timing skew.
The THS10082CDAG4's differentiating features include 2-channel simultaneous sampling at up to 8 MSPS per channel, an integrated 16-word FIFO that decouples the converter's data-rate from the host processor, channel autoscan for sequential conversions, a low-power CMOS pipeline core, and a parallel DSP/uP interface that allows direct connection to C5000/C6000 DSPs and standard microcontrollers. Each channel carries its own sample-and-hold, eliminating inter-channel aperture skew at full speed.
The device uses a multistage pipelined architecture with output error correction, providing 10-bit linearity at 8 MSPS while consuming low total power. The single 3.3 V supply and CMOS I/O simplify power-tree design, while the integrated FIFO allows burst capture of up to 16 conversion results before the host is interrupted, reducing glue logic and easing timing closure in DSP-coupled designs.
Typical applications include radar intermediate-frequency (IF) acquisition, digital imaging front ends, communications baseband I/Q sampling, high-speed data acquisition, and multi-channel industrial instrumentation. The combination of dual channels and a FIFO is particularly useful in motor-control current/voltage sensing, where simultaneous sampling prevents calculation artifacts from phase delay between channels.
A key design consideration is FIFO depth: with only 16 words of buffer, the host must service interrupts often enough to avoid overrun, so DMA or DSP-interrupt-driven reads are recommended. Input bandwidth and the external drive amplifier must also support the 8 MSPS Nyquist envelope; an antialiasing filter ahead of AINP/AINN is required to prevent out-of-band foldback.
This page synthesizes distributor pricing from Octopart and DigiKey, drop-in TSSOP-32 footprint alternatives (including automotive-grade and full-speed same-die variants), and practical design notes on FIFO management and input driving that are not collected in a single location in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho THS10082CDAG4 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
THS10082IDAG4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
THS10082CDA
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
THS10082IDA
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
THS10082IDAG4Q1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS7861IDBQR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
THS10082CDAG4 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 10 bit |
| Sample Rate | 8 MSPS per channel |
| Number of Input Channels | 2 (simultaneous sampling) |
| Architecture | Multistage pipelined, CMOS |
| Điện áp cung cấp | 3.3 V single supply |
| Giao diện | Parallel DSP/uP, 8/16-bit selectable |
| FIFO Depth | 16 words |
| Channel Autoscan | Yes (hardware-supported) |
| Input Type | Single-ended, differential pair per channel |
| Hộp | 32-pin TSSOP (DAG) |
| Khoảng nhiệt độ hoạt động | 0C to +70C |
| Temperature Grade | Commercial |
| Terminal Form | Gull-wing |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Hướng dẫn cấu hình chân THS10082CDAG4 32-pin tssop (dag)
Cấu hình chân cho THS10082CDAG4 (32-pin tssop (dag) gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho THS10082CDAG4.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
THS10082CDAG4 phù hợp cho 6 Áp dụngs: Radar IF Acquisition, Digital Imaging Front End, Communications Baseband Sampling, Multi-Channel Industrial Instrumentation, Motor Control Current/Voltage Sensing, Medical Ultrasound / Diagnostic Imaging.
Radar IF Acquisition
The THS10082CDAG4's 8 MSPS per-channel throughput and simultaneous dual-channel sampling make it well suited to digitizing the in-phase and quadrature (I/Q) baseband signals at the output of a radar IF stage. By capturing both I and Q channels at exactly the same instant via the per-channel sample-and-hold, the device eliminates aperture-skew artifacts that would otherwise create an unwanted image in the FFT output, improving target separation in the range-Doppler map. The integrated 16-word FIFO buffers the 8 MSPS stream while a TI C6000 DSP services bursts via DMA, leaving headroom for chirp processing. Compared to alternate dual ADCs without a FIFO, this part reduces glue logic and simplifies timing closure on parallel-DSP designs.
Được đề xuất
Digital Imaging Front End
In a digital imaging pipeline, the THS10082CDAG4 can digitize two analog sensor channels simultaneously at 8 MSPS, supporting CCD/CIS analog preprocessing with matched timing. The 10-bit resolution captures the dynamic range needed for pixel luminance while the parallel DSP interface feeds data directly into an image-signal-processing pipeline without handshake delays. Channel autoscan hardware-managed conversion sequencing reduces firmware complexity, and the 32-pin TSSOP footprint allows compact board placement next to the sensor. Designers typically pair the part with a low-noise input driver and a single-pole RC antialiasing filter at ~3.5 MHz to protect Nyquist.
Được đề xuất
Communications Baseband Sampling
For software-defined-radio (SDR) baseband designs, the THS10082CDAG4 captures two baseband channels (typically I and Q) at 8 MSPS with 10-bit resolution, preserving amplitude balance and DC offset behavior for demodulation. The single 3.3 V supply simplifies the radio power tree, while the small 32-pin TSSOP footprint suits portable and handheld SDR hardware. The integrated 16-word FIFO eases host timing closure so a low-cost microcontroller or DSP can still maintain a non-overrun data stream. When paired with digital decimation in firmware, 10 bits at 8 MSPS yields effective bits comparable to many narrow-band applications.
Được đề xuất
Multi-Channel Industrial Instrumentation
In factory-automation data-acquisition cards, the THS10082CDAG4's two simultaneously sampled channels remove the timing skew that would otherwise exist when measuring paired signals such as voltage and current on a power line. With industrial-grade variants available in the same family (THS10082IDAG4), the platform extends across commercial and industrial temperature grades without PCB rework. The 16-word FIFO provides burst tolerance against host delays, ideal for PLC and SCADA subsystems that occasionally stall on higher-priority interrupts. Cost per channel is minimized by dual-channel integration vs two discrete single-channel ADCs.
Được đề xuất
Motor Control Current/Voltage Sensing
Simultaneous current and voltage sensing in a Field-Oriented Control (FOC) motor drive requires both signals captured at the same instant to avoid calculation errors in the Clarke/Park transform. The THS10082CDAG4 satisfies this with two simultaneous sample-and-hold channels at 8 MSPS, more than sufficient for inverter PWM frequencies in the 20-100 kHz range. The integrated FIFO buffers each PWM-edge snapshot so the motor-control DSP can complete the FOC math before the next sample arrives. Designers can place the part on the same board as the TI C2000 InstaSPIN family for a streamlined digital control loop.
Được đề xuất
Medical Ultrasound / Diagnostic Imaging
In low-cost portable ultrasound or diagnostic imaging front-ends, the THS10082CDAG4 captures two phased-array receive channels with no inter-channel skew, preserving beamforming vector accuracy. The 8 MSPS rate supports many low-MHz ultrasound probes used in vascular and obstetric scanning, while the parallel host interface streams raw data into a DSP or FPGA for time-gain compensation and envelope detection. The 32-pin TSSOP allows compact dense PCB layouts typical of probe handle electronics. Biomedical designs typically migrate to the higher-temp grade TI variant for chassis-mounted electronics; verify IEC 60601 isolation requirements at the system level.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho THS10082CDAG4 — 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 | THS10082IDAG4 | THS10082CDA | THS10082IDA | THS10082IDAG4Q1 | ADS7861IDBQR |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 32-TSSOP (DAG) | 32-TSSOP (DAG) - same | 32-TSSOP (DAG) - same | 32-TSSOP (DAG) - same | 32-TSSOP (DAG) - same | QSOP-28 (DBQ) |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit | 12 bit |
| Sample Rate | 8 MSPS | 8 MSPS | 8 MSPS | 8 MSPS | 8 MSPS | 0.5 MSPS |
| Input Channels | 2 (simultaneous) | 2 (simultaneous) | 2 (simultaneous) | 2 (simultaneous) | 2 (simultaneous) | 2 (simultaneous SAR) |
| Temperature Grade | Commercial 0C to 70C | Industrial -40C to +85C | Commercial 0C to 70C | Industrial -40C to +85C | AEC-Q100 automotive | Industrial -40C to +85C |
| FIFO Depth | 16 words | 16 words | 16 words | 16 words | 16 words | 2x FIFO (per channel) |
| Supply Voltage | 3.3 V single | 3.3 V single | 3.3 V single | 3.3 V single | 3.3 V single | 5 V single |
Bảo phân biệt quan trọng
- Two simultaneously sampled channels with on-chip FIFO (vsADS7861IDBQR)
- Industrial and automotive siblings in the same footprint (vsTHS10082IDAG4 / THS10082IDAG4Q1)
- Parallel DSP/uP interface with FIFO (vsTHS10082CDA (no G4 finish code))
Ghi chú thiết kế
FIFO overflow: with only 16 words of buffer the host must service conversions at >= the conversion rate averaged over the FIFO depth. Estimated: at 8 MSPS the 16-word FIFO fills in 2.0 us; any host interrupt latency longer than that with the FIFO enabled will cause data loss. Use DMA or DSP FIFO-aware interrupts and monitor the FIFO-full flag in the status register.
Power-supply decoupling: place a 0.1 uF X7R ceramic bypass directly at each AVDD and DVDD pin, plus a 10 uF tantalum or polymer bulk capacitor at the regulator output. Estimated bypass-loop inductance target is <5 nH - keep vias short and use wide traces or power-plane pours. Split analog and digital grounds and join them under the ADC to avoid digital return currents polluting the analog reference.
Input trace matching: route AIN1P/AIN1N (and AIN2P/AIN2N) as a length-matched differential pair with a characteristic impedance appropriate for the antialiasing filter; mismatch in pair length directly degrades common-mode rejection at higher input frequencies. Keep digital parallel-bus traces (D0-D9, CS, RD, WR, EOC/INT) away from the analog input and reference pins to minimize digital noise coupling into the analog front-end.
Antialiasing filter selection: the THS10082's 8 MSPS per-channel rate sets a Nyquist of 4 MHz. Use a low-pass or band-pass filter ahead of the analog inputs with a cutoff at or slightly below the highest input frequency of interest and at least 40 dB rejection at the Nyquist frequency to prevent out-of-band foldback. The filter must drive the ADC's switched-capacitor input without excessive distortion - use a wide-bandwidth op-amp such as OPA2354 or OPA228 as a buffer.
Reference decoupling: REF and REFB require low-inductance decoupling close to the package pins to keep reference noise low. Estimated: a 0.1 uF X7R plus 10 uF bulk on REFT and REFB is a starting point; refer to the datasheet reference-pin schematic. Reference noise is a primary contributor to ADC SNR/ENOB; never share the reference pin with other dynamic loads.
Thông tin tuân thủ
G4 suffix in THS10082CDAG4 indicates Pb-free, RoHS-compliant terminal finish per TI ordering nomenclature. AEC-Q100 is not applicable for the CDA commercial variant - choose THS10082IDAG4Q1 for automotive. Halogen-free status not explicitly stated in the verified web data and is marked unknown.
