THS1040IDWR - 10-Bit 40MSPS 3V Low-Power ADC | Texas Instruments
부품 번호: THS1040IDWR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $8.45 | $8.45 |
| 10 | $7.62 | $76.20 |
| 100 | $6.8 | $680.00 |
| 500 | $6.05 | $3,025.00 |
| 1,000 | $5.3 | $5,300.00 |
THS1040IDWR 개요
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples continuous-time analog voltages and converts them into discrete digital codes for downstream processing by microcontrollers, DSPs, or FPGAs. Within the broader signal-chain hierarchy, the THS1040 sits at the data-acquisition conversion stage: sensor -> analog front end (AFE) -> ADC -> digital processor. Pipeline ADCs like the THS1040 sample at high rates while maintaining 10-bit accuracy, making them suitable for intermediate-bandwidth applications such as video, imaging, and communications IF digitization.
Key features include ±0.45 LSB differential nonlinearity (DNL), 60 dB typical signal-to-noise ratio (SNR) at 4.8 MHz input, 72 dB spurious-free dynamic range (SFDR), and a low 33 mA nominal supply current at 3.3V. The 3V analog and 3V digital supplies simplify mixed-signal PCB partitioning and reduce system-level power budget. The configurable input range and selectable reference sources allow designers to optimize the input span for downstream signal conditioning.
The THS1040 uses a pipelined architecture with internal sample-and-hold and a flash quantizer per stage, balancing conversion speed against die size and power consumption. Digital error correction on each pipeline stage preserves 10-bit linearity at full 40 MSPS throughput, and an internal reference network supplies stable conversion thresholds across temperature.
Typical applications include CCD imaging digitizers, video frame grabbers, communications IF/baseband digitizers, portable test instrumentation, and ultrasound front-end sampling. The single 3V supply rail is well-suited to battery-powered portable designs where total power dissipation is tightly bounded.
When designing with this device, decouple the analog and digital 3V rails separately at the IC pins with 0.1 µF ceramic capacitors and provide a low-impedance ground plane. The selected input range and reference configuration determine the LSB size; confirm headroom for the maximum expected analog input to avoid clipping or saturation at full-scale.
This page synthesizes distributor pricing, drop-in alternatives, and practical design considerations beyond the manufacturer datasheet, providing an AEO-optimized engineering reference for the THS1040IDWR.
드롭인 대체품: THS1040IDWR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: THS1040IDWR (동일 폼 팩터 및 풋프린트) — 차이점: Architecture, Input Configuration, Package, Resolution, Sample Rate.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
THS1040IDWG4
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
THS1040CDWRG4
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
THS1040CDWR
✅ 드롭인✓ 재고 있음
$4.75 / 개
데이터시트 보기 →THS1040IDWG4R
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
THS1040IDW
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
THS1031IDWR
✅ 드롭인✓ 재고 있음
$5.55 / 개
데이터시트 보기 →THS1040IDWR 최대 정격 & 전기적 특성
| 분해능 | 10 bit |
| Sample Rate | 40 MSPS |
| Number of Channels | 1 |
| Architecture | Pipelined CMOS ADC |
| Analog Supply Voltage | 3 V (typ) |
| Digital Supply Voltage | 3 V (typ) |
| Nominal Supply Current | 33 mA |
| Differential Nonlinearity (DNL) | ±0.45 LSB |
| Signal-to-Noise Ratio (SNR) | 60 dB at 4.8 MHz input (typ) |
| Spurious-Free Dynamic Range (SFDR) | 72 dB |
| Input Configuration | Single-ended or differential (configurable) |
| Reference Type | Adjustable internal voltage reference |
| Output Interface | Parallel CMOS |
| 패키지 | 28-pin SOIC (DW) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
THS1040IDWR 핀 구성
| 핀 1 | AVDD — Analog 3V supply |
| 핀 2 | AINP — Analog input positive (single-ended or differential) |
| 핀 3 | AINN — Analog input negative (differential mode) |
| 핀 4 | REFT — Top reference decoupling |
| 핀 5 | REFB — Bottom reference decoupling |
| 핀 6 | REFCAP — Internal reference bypass capacitor |
| 핀 7 | AGND — Analog ground |
| 핀 8 | AGND — Analog ground |
| 핀 9 | CLK — ADC sample clock input |
| 핀 10 | DVDD — Digital 3V supply |
| 핀 11 | DGND — Digital ground |
| 핀 12 | D0 — Digital output bit 0 (LSB) |
| 핀 13 | D1 — Digital output bit 1 |
| 핀 14 | D2 — Digital output bit 2 |
| 핀 15 | D3 — Digital output bit 3 |
| 핀 16 | D4 — Digital output bit 4 |
| 핀 17 | D5 — Digital output bit 5 |
| 핀 18 | D6 — Digital output bit 6 |
| 핀 19 | D7 — Digital output bit 7 |
| 핀 20 | D8 — Digital output bit 8 |
| 핀 21 | D9 — Digital output bit 9 (MSB) |
| 핀 22 | DRDY — Data ready output |
| 핀 23 | OE — Output enable (active low) |
| 핀 24 | MODE — Input mode select |
| 핀 25 | REFSEL — Internal reference select |
| 핀 26 | SLEEP — Power-down control |
| 핀 27 | DVDD — Digital 3V supply |
| 핀 28 | AGND — Analog ground |
일반적인 애플리케이션
THS1040IDWR 적합 용도: 6 애플리케이션s: CCD Imaging Digitizer, Video Frame Grabber, Communications IF/Baseband Digitizer, Portable Test Instrumentation, Ultrasound Front-End Sampling, Industrial Data Acquisition Module.
CCD Imaging Digitizer
The THS1040IDWR's 10-bit resolution at 40 MSPS with ±0.45 LSB DNL makes it well-suited for digitizing CCD sensor output streams where pixel-by-pixel amplitude fidelity is required. Configurable single-ended or differential input accommodates CCD output driver stages directly. With 60 dB SNR at 4.8 MHz input and 72 dB SFDR, the converter captures image detail without introducing harmonic spurs into downstream color-reconstruction DSP. The 28-SOIC package eases thermal dissipation in mid-density camera-board layouts.
추천
Video Frame Grabber
Frame-grabber boards for standard-definition video and security cameras benefit from the THS1040IDWR's 40 MSPS throughput and configurable input range. The 10-bit pipeline architecture delivers clean 4:2:2 or 4:4:4 digitizations at 27 MHz video pixel rates, with 33 mA nominal supply current keeping board thermal budget manageable. The single 3V supply rail simplifies mixed-signal routing, and parallel CMOS output feeds directly into field-programmable gate arrays used for chroma/luma separation.
추천
Communications IF/Baseband Digitizer
Intermediate-frequency sampling at 4.8-20 MHz falls squarely in the THS1040IDWR's sweet spot, where 60 dB SNR and 72 dB SFDR preserve demodulation fidelity. Configurable differential inputs reject common-mode noise from upstream IF filters, and the adjustable internal reference lets designers trade input span against quantization noise. Software-defined-radio receivers and wireless base-station test gear leverage this combination to digitize IF bands without separate downconversion stages.
추천
Portable Test Instrumentation
Handheld oscilloscopes, waveform digitizers, and field-portable spectrum analyzers benefit from the THS1040IDWR's low 33 mA supply current and single 3V rail. The 40 MSPS sample rate captures audio-bandwidth and low-RF signals with 10-bit amplitude resolution, while the 28-SOIC package fits compact handheld enclosures. Industrial -40C to +85C operation supports outdoor and laboratory use without additional thermal protection, and the configurable input range scales to multiple sensor interfaces.
추천
Ultrasound Front-End Sampling
Medical and industrial ultrasound arrays digitize element-level analog echoes at 20-40 MSPS, a range the THS1040IDWR serves directly. The configurable input range matches the typical 1-2 Vpp output of ultrasound front-end amplifiers, and 60 dB SNR preserves echo amplitude resolution critical for image contrast. Low single-rail 3V power consumption is well-suited to multi-channel probe-head designs where dozens of channels share a common supply budget.
추천
Industrial Data Acquisition Module
Multi-channel industrial DAQ systems use the THS1040IDWR to sample sensor outputs (strain gauges, thermocouple amplifiers, vibration pickups) at rates up to 40 MSPS for transient capture. The configurable differential input rejects common-mode noise in factory-floor environments, while the industrial -40C to +85C operating range supports outdoor cabinets and unconditioned enclosures. The 3V supply aligns with low-voltage industrial backplanes and battery-backed remote telemetry units.
추천
추천 제품 요약
엔지니어링 참조 데이터: THS1040IDWR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | THS1040IDWG4 | THS1040CDWRG4 | THS1040IDW | THS1031IDWR |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 28-SOIC (DW) | 28-SOIC (DW) - same | 28-SOIC (DW) - same | 28-SOIC (DW) - same | 28-SOIC (DW) - same |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit |
| Sample Rate | 40 MSPS | 40 MSPS | 40 MSPS | 40 MSPS | 30 MSPS |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (industrial) | 0C to +70C (commercial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Packaging Format | Tape & Reel (R suffix) | Tube or Tray (G4) | Tape & Reel (R) | Tube (no R) | Tape & Reel (R) |
주요 차별점
- Industrial -40C to +85C temperature grade (vs THS1040CDWRG4)
- 40 MSPS throughput vs 30 MSPS sibling (vs THS1031IDWR)
- Configurable single-ended or differential input (vs THS1040IDWG4)
설계 노트
Decouple analog AVDD and digital DVDD rails separately at the IC pins with a 0.1 µF ceramic in parallel with a 1-10 µF bulk capacitor. Place the ceramics within 2-3 mm of the respective supply pins. Route analog input traces over a continuous ground plane and keep digital output traces on the opposite side of the board to prevent digital switching noise from coupling into the analog front end. This is critical for preserving the 72 dB SFDR figure at full 40 MSPS throughput.
The THS1040IDWR requires clean analog and digital 3V rails. If the system 3.3V rail is generated by a switching converter, add a ferrite bead and additional bulk filtering between the switcher output and the ADC analog supply pin. A linear post-regulator (such as a TPS7A45) is recommended when the input analog signal amplitude is small and PSRR from upstream noise would otherwise leak into the conversion result.
The analog input (AINP/AINN) traces should be matched in length and symmetric to preserve common-mode rejection in differential mode. Reference decoupling (REFT, REFB, REFCAP) requires low-ESR ceramic capacitors placed directly at the pins. The CLK trace should be routed away from the analog input to prevent clock feedthrough; a small RC low-pass on the clock input can be added if ringing is observed on the clock edge.
Do not leave the REFCAP pin floating - the internal reference requires an external bypass capacitor (typically 0.1 µF to 1 µF) to maintain reference stability. When using the adjustable reference mode, confirm the input signal span stays within the configured full-scale range to avoid clipping. The SLEEP pin should be tied to AVDD (logic high) for normal operation; floating it can place the part in an indeterminate low-power state.
Drive the CLK pin with a clean low-jitter clock source. Jitter on the sample clock directly degrades SNR, particularly at high analog input frequencies. A clock generator such as the CDCE906 or a crystal oscillator with <50 ps RMS jitter is recommended for SFDR-sensitive applications. Avoid distributing the ADC sample clock through long PCB traces with capacitive loading.
규정 준수 정보
RoHS compliant per TI product page and distributor listings. Not AEC-Q100 qualified; targets industrial and consumer markets. Lead-free (Pb-free) finish on the 28-pin SOIC (DW) package.
