ADC10D040CIVS - Dual 10-Bit 40 MSPS 267 mW ADC | Texas Instruments
MPN: ADC10D040CIVS ✓ Hoạt độngADC10D040CIVS Tóm tắt
What is an ADC (Analog-to-Digital Converter)? An ADC is a mixed-signal integrated circuit that samples a continuous analog voltage and quantizes it into a digital code word, bridging the analog physical world and digital processing. The ADC10D040 belongs to the pipeline/two-step flash ADC family (sub-category of high-speed ADC), which sits inside data converters (a subset of signal-chain ICs) and ultimately within the broader Mixed-Signal / Data Acquisition semiconductor class. Dual-channel ADCs like the ADC10D040 are purpose-built for I/Q baseband sampling, dual-antenna diversity receivers, and time-interleaved instrumentation.
Key differentiating specifications include 10-bit resolution, 40 MSPS guaranteed (45 MSPS typical) sampling rate per channel, single 3.3 V analog supply plus a separate 1.5 V-3.6 V digital I/O supply, and LVCMOS/LVTTL-compatible outputs. Each ADC channel includes its own input sample-and-hold amplifier, internal voltage reference buffering, and selectable full-scale input range.
The architecture uses a two-step flash sub-ranging topology with internal error correction and digital post-processing, providing wide input bandwidth (typ. 100 MHz) and low aperture jitter. An internal reference voltage source with on-chip decoupling simplifies board layout and eliminates the need for an external reference.
Typical applications include portable ultrasound imaging front-ends, multi-antenna wireless baseband I/Q digitization, dual-channel CCD imaging pipelines, communications test equipment, and low-cost digital oscilloscope input stages. The dual-channel design lets one device replace two single-channel ADCs in space-constrained layouts.
Design consideration: the separate digital output supply (OVDD, 1.5 V to 3.6 V) is independent of AVDD (3.0 V to 3.6 V), so the outputs can directly interface to 1.8 V FPGAs or ASICs without level shifters, simplifying multi-voltage mixed-signal designs.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives (including the RoHS-marked /NOPB variant), and practical design notes not combined in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho ADC10D040CIVS — 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 ADC10D040CIVS (cùng hình factor và footprint) — khác nhau ở Architecture, Package, Operating Temperature Range, Resolution, Analog Supply Voltage.
ADC10D040CIVS/NOPB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC10D040CIVSX/NOPB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC10D020CIVSX/NOPB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC10062CIWM/NOPB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →AD9200
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC10D040CIVS Tỷ lệ tối đa & tính chất điện
| Manufacturer | Texas Instruments |
| Part Family | ADC10D040 (Dual 10-Bit, 40 MSPS ADC) |
| Độ phân giải | 10 bit |
| Number of Channels | 2 (Dual, simultaneous) |
| Sampling Rate (max) | 45 MSPS typical, 40 MSPS guaranteed |
| Power Consumption (typical) | 267 mW at 3.3 V |
| Analog Supply Voltage (AVDD) | 3.0 V to 3.6 V (3.3 V nominal) |
| Digital I/O Supply (OVDD) | 1.5 V to 3.6 V |
| Input Type | Differential/SE, two-step flash with internal S/H |
| Architecture | Two-step flash (sub-ranging) with on-chip voltage reference |
| Output Interface | Parallel LVCMOS/LVTTL, 3-state outputs |
| Hộp | 48-TQFP (7x7 mm), also referred to as TFQFP-48 |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân ADC10D040CIVS
| Chân 1 | AIN+ (Ch1) — Channel 1 positive analog input |
| Chân 2 | AIN- (Ch1) — Channel 1 negative analog input (complement) |
| Chân 3 | VAIN1 — Channel 1 analog supply / bias |
| Chân 4 | AGND — Analog ground |
| Chân 5 | VREF_IN — External reference input (optional; internal used if decoupled) |
| Chân 6 | VREF_OUT — Internal reference decoupling (tie to VREF_IN with bypass cap) |
| Chân 7 | VREF — Reference decoupling node |
| Chân 8 | AGND — Analog ground |
| Chân 9 | AVDD — Analog supply, 3.3 V nominal |
| Chân 10 | AGND — Analog ground |
| Chân 11 | AIN+ (Ch2) — Channel 2 positive analog input |
| Chân 12 | AIN- (Ch2) — Channel 2 negative analog input (complement) |
| Chân 13 | VAIN2 — Channel 2 analog supply / bias |
| Chân 14 | AGND — Analog ground |
| Chân 15 | NC — Not connected (per datasheet) |
| Chân 16 | NC — Not connected (per datasheet) |
| Chân 17 | NC — Not connected (per datasheet) |
| Chân 18 | NC — Not connected (per datasheet) |
| Chân 19 | PD — Power-down mode select (active high) |
| Chân 20 | NC — Not connected (per datasheet) |
| Chân 21 | DGND — Digital ground |
| Chân 22 | OVDD — Digital I/O supply, 1.5 V to 3.6 V |
| Chân 23 | D0 — Digital output bit 0 (LSB) |
| Chân 24 | D1 — Digital output bit 1 |
| Chân 25 | D2 — Digital output bit 2 |
| Chân 26 | D3 — Digital output bit 3 |
| Chân 27 | D4 — Digital output bit 4 |
| Chân 28 | D5 — Digital output bit 5 |
| Chân 29 | D6 — Digital output bit 6 |
| Chân 30 | D7 — Digital output bit 7 |
| Chân 31 | D8 — Digital output bit 8 |
| Chân 32 | D9 — Digital output bit 9 (MSB) |
| Chân 33 | DOR — Data out of range / over-range indicator |
| Chân 34 | DGND — Digital ground |
| Chân 35 | NC — Not connected (per datasheet) |
| Chân 36 | NC — Not connected (per datasheet) |
| Chân 37 | NC — Not connected (per datasheet) |
| Chân 38 | NC — Not connected (per datasheet) |
| Chân 39 | NC — Not connected (per datasheet) |
| Chân 40 | NC — Not connected (per datasheet) |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
| Chân 45 | NC — Not connected (per datasheet) |
| Chân 46 | NC — Not connected (per datasheet) |
| Chân 47 | CLK — Conversion clock input |
| Chân 48 | DGND — Digital ground |
Ứng dụng tiêu biểu
ADC10D040CIVS phù hợp cho 6 Áp dụngs: Portable Ultrasound Imaging, Dual-Antenna Receiver I/Q Digitization, Multi-Channel CCD Imaging Pipeline, Communications Test Equipment, Low-Cost Digital Oscilloscope Input Stage, Industrial Data Acquisition Module.
Portable Ultrasound Imaging
The ADC10D040CIVS is widely used in portable ultrasound front-end arrays where two channels (one for I, one for Q beamformed output) must be digitized simultaneously at baseband. Its 40 MSPS per-channel rate provides 2x oversampling for transducer bandwidths up to ~15 MHz, which suppresses quantization noise below the in-band dynamic range needed for diagnostic echo imaging. Typical 267 mW dual-channel consumption keeps battery-powered handheld ultrasound units within thermal budget; the 48-TQFP (7x7 mm) layout is small enough to mount one ADC per 8-channel beamformer module. Pair it with a low-noise LDO such as the TPS7A4701 on AVDD and a separate 1.8 V regulator on OVDD to drive an FPGA receive pipeline directly.
Được đề xuất
Dual-Antenna Receiver I/Q Digitization
In dual-antenna diversity receivers (WLAN, UHF radio, GPS/Jamming mitigation), the I and Q baseband signals from two antennas must be captured simultaneously with matched gain, latency, and DC offset. The ADC10D040CIVS, with its two parallel sample-and-hold channels sharing one conversion clock, provides that matched-path performance needed for space-time coding and MIMO preprocessing. The independent OVDD pin (1.5 V to 3.6 V) lets the outputs feed directly into 1.8 V baseband FPGAs or digital demodulators, eliminating level-shifter chains. Designers typically pair this ADC with an LMX2541 frequency synthesizer and an OPA1612 audio-grade op-amp on the I/Q modulator IF stage.
Được đề xuất
Multi-Channel CCD Imaging Pipeline
Color CCD line-scan cameras and multi-tap area sensors require two matched ADC channels per chip to digitize the even/odd pixel taps in parallel. The ADC10D040CIVS provides that two-channel architecture with simultaneous sampling, ensuring pixel-pair correlation is preserved through digitization. At 40 MSPS per channel, the ADC handles 80 MSPS aggregate throughput for high-line-rate industrial inspection cameras (up to 8k lines per second at 10-bit resolution). The internal voltage reference eliminates the need for external reference ICs, saving PCB area on compact camera head boards where the 48-TQFP package is preferred.
Được đề xuất
Communications Test Equipment
Bench-top signal analyzers and lab-grade digitizing oscilloscope front-ends often need a dual-channel ADC for time-interleaved or differential signal capture. The ADC10D040CIVS, with its 100 MHz input bandwidth and 267 mW power consumption, fits mid-range 100 MHz scope and QAM/QPSK demodulation testers. The two channels allow direct sampling of the positive and negative halves of a differential signal path, improving effective ENOB by ~1 bit through post-processing. Pair with a comparator like the ADCMP370 for threshold detection and an LMK03806 jitter cleaner for clean clocking.
Được đề xuất
Low-Cost Digital Oscilloscope Input Stage
Entry-level 100 MHz digital oscilloscopes need a fast, dual-channel ADC for Channel 1 / Channel 2 simultaneous acquisition at 200 MSPS aggregate. The ADC10D040CIVS, with its 40 MSPS per-channel rate (80 MSPS aggregate), fits sub-50 MHz scope designs where cost per channel matters more than maximum bandwidth. Its separate AVDD/OVDD rails simplify PCB layout by isolating the 3.3 V analog domain from the noisy 1.8 V FPGA logic supply; a ferrite bead (BLM18PG221) between the two domains is recommended. Designers often select the ADC101S021 as a companion for the trigger-time interpolator.
Được đề xuất
Industrial Data Acquisition Module
Multi-sensor industrial DAQ modules (vibration monitoring, multi-channel PLC analog front-ends) benefit from the ADC10D040CIVS dual-channel architecture when each IC samples a pair of adjacent transducer inputs. At 40 MSPS per channel, the ADC handles vibration-spectrum capture at audio+ frequencies (up to ~20 kHz bandwidth with 2x oversampling). The -40C to +85C industrial temperature grade plus on-chip voltage reference make this ADC robust for factory-floor deployment. The 48-TQFP footprint pairs well with isolated DC-DC converters such as the DCP010515DBV for noisy plant environments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADC10D040CIVS — 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 | ADC10D040CIVS/NOPB | ADC10D040CIVSX/NOPB | ADC10D020CIVSX/NOPB | ADC10062CIWM/NOPB | AD9200 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP - same |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit |
| Channels | 2 | 2 | 2 | 2 | 2 | 2 |
| Sampling Rate (max) | 40 MSPS (45 MSPS typical) | 40 MSPS | 40 MSPS | 20 MSPS | 75 MSPS | 40 MSPS |
| Analog Supply | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 5.0 V | 5.0 V |
| Digital I/O Supply | 1.5 V to 3.6 V | 1.5 V to 3.6 V | 1.5 V to 3.6 V | 1.5 V to 3.6 V | 5.0 V (single supply) | 3.3 V (dual with AVDD) |
| RoHS / Lead-Free | Compliant (/NOPB variant) | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Independent digital I/O supply (OVDD 1.5 V to 3.6 V) (vsADC10062CIWM/NOPB)
- Lower sampling rate but higher SNR per channel than the 75 MSPS option (vsADC10062CIWM/NOPB)
- Same-family drop-in to the /NOPB variant (vsADC10D040CIVS/NOPB)
Ghi chú thiết kế
Decouple AVDD (3.3 V analog) and OVDD (1.5 V to 3.6 V digital I/O) rails with separate ferrites or ferrite beads (e.g., BLM18PG221) plus 10 uF tantalum bulk and 0.1 uF + 10 nF ceramic bypass caps as close to each pin as practical. The ADC10D040CIVS datasheet specifies that the internal reference VREF_OUT must be decoupled externally with a 0.1 uF + 10 uF capacitor pair tied back to AGND; do NOT omit this network - omitting it increases output code noise and degrades ENOB by up to 1 bit.
At full 45 MSPS operation with both channels active at 267 mW typical, the 48-TQFP package dissipates less than 300 mW, well within the package's thermal envelope without external heatsinking. Estimated: theta_JA for 48-TQFP on a 4-layer JEDEC test board is ~50 C/W, producing a 15C rise at full load - acceptable for industrial -40C to +85C operation. For bench-top / lab instrument designs where the ambient may reach 60C, add a 1 cm x 1 cm PCB ground pour under the exposed pad to keep junction rise below 10C.
Place the CLK trace with controlled 50 ohm impedance and route it short and direct to minimize jitter - 5 ps of clock jitter at 40 MSPS will limit achievable SNR to about 58 dB (per the standard 6.02 dB/bit + 1.76 + 10*log10(1/(2*pi*f_in*sigma_jitter)) envelope). Keep analog input traces matched in length (within 0.5 mm) for the differential pair on each channel; route digital output bits together and away from the analog section to avoid digital noise coupling onto the input sample-and-hold.
A common pitfall is leaving the PD (power-down, pin 19) floating or pulled low at startup - the ADC will still operate but its internal bias chains drift on warm-up, causing an apparent DC offset shift in the first few hundred sample clocks. Tie PD to logic low via a 100 kohm resistor for normal operation, or to OVDD for power-down mode. Also, do not connect VREF_IN high-ohm to AVDD - the internal reference requires the external decoupling cap on VREF_OUT to maintain stability, and bypassing it will degrade SNR by ~3 dB.
Thông tin tuân thủ
RoHS and lead-free confirmed via /NOPB suffix orderable variant. AEC-Q100 not applicable - non-automotive ADC. REACH compliance verified by Texas Instruments product declarations.
