DDC1128
- Single-Chip Solution to Directly Measure
128 Low-Level Currents - Proven High-Precision, True Integrating
Architecture with 100% Charge Collection - Easy Upgrade for Existing DDC Family
Applications - Low Power: 3 mW/channel at 3 kSPS
- Extremely Linear:
INL = ±0.025% of Reading ±1 ppm of FSR - Low Noise: 6.3 ppm of FSR
- Adjustable Full-Scale Range
- Adjustable Speed
- Data Rates up to 6 kSPS with 20-bit
Performance - Integration Times as low as 160 µs
- Data Rates up to 6 kSPS with 20-bit
- Daisy-Chainable Serial Interface
- In-Package Bypass Capacitors Simplify PCB
Design Area and Design Complexity
The DDC1128 is a 20-bit, 128-channel, current-input analog-to-digital (A/D) converter. It combines both current-to-voltage and A/D conversion so that 128 separate low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized.
For each of the 128 inputs, the DDC1128 uses the proven dual switched integrator front-end. This configuration allows for continuous current integration: while one integrator is being digitized by the onboard A/D converter, the other is integrating the input current. This architecture provides both a stable offset and a loss-less collection of the input current. Adjustable integration times range from 160µs to 1s, allowing currents from fAs to µAs to be continuously measured with outstanding precision.
The DDC1128 has a serial interface designed for daisy-chaining in multi-device systems. Simply connect the output of one device to the input of the next to create the chain. Common clocking feeds all the devices in the chain so that the digital overhead in a multi-DDC1128 system is minimal.
The DDC1128 operates from a +5 V analog supply and a 2.7 V to 3.6 V digital supply, it is specified from 0°C to 70°C operating temperature and it is available in a 9 × 9 mm2 192-ball BGA, which includes on board bypass capacitors to help minimize the external component requirements and further reduce board space.
To request a full data sheet or other design resources: request DDC1128
자세한 정보
전체 데이터 시트 및 기타 설계 리소스를 NDA에 따라 사용 가능합니다.지금 요청
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | DDC1128 128-Channel, Current-Input Analog-to-Digital Converter datasheet (Rev. A) | PDF | HTML | 2016/05/27 |
| Analog Design Journal | Selecting a multichannel ultra-low-current measurement IC | PDF | HTML | 2022/03/18 | |
| EVM User's guide | DDC1128 EVM Intro User's Guide | 2014/03/19 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
DDC1128EVM — DDC1128 128채널 전류 입력 아날로그-디지털 컨버터용 평가 모듈
The DDC1128EVM evaluation module (EVM) is an evaluation kit for evaluating the DDC1128, a 128-channel, current input, 20-bit analog-to-digital (A/D) converter. The EVM consists of two DDC1128 devices, a USB device for interfacing to a PC, an FPGA for device (...)
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| NFBGA (ZKL) | 192 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.