DDC2256A
- Single-Chip Solution to Directly Measure 256 Low-
Level Currents Simultaneously - User Adjustable Full-Scale Range
- Adjustable Speed with Integration Times as Low
as 58.8 µs (17 KSPS per channel) with 24 bit
Resolution - Power Dissipation as Low as 1.7mW/channel
- Integral Linearity: ±0.025% of Reading ±1 ppm of
Full Scale Reading (all channels active) - Low Noise
- 24 bit ADC
- No Charge Loss and Simultaneous Sampling
- On-board Temperature Sensor
- In-Package Bypass Capacitors and Reference
Buffer to Reduce PCB Area and Design Complexity - Serial LVDS and CMOS Output Interface Option
The DDC2256A is a 24-bit, 256-channel, current-input analog-to-digital (A/D) converter. It combines both current-to-voltage integration and A/D conversion so that 256 individual low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized in parallel (simultaneously).
For each of the inputs, the DDC2256A has one low noise/low power integrator designed to capture all the charge from the sensor. The integration time is adjustable from 58.8μs to 100 ms, allowing currents from fA to µA to be continuously measured with outstanding precision. The outputs of the integrators are digitized by sixteen 24-bit low power ADCs and all the resulting data is output over a single LVDS serial interface pair designed to minimize noise coupling in environments with high channel count.
The DDC2256A operates from ±2.5-V analog supply, 1.8-V analog supply (AVDD_18) and 1.8-V digital supply (DVDD). The device is specified from 0°C to 70°C operating temperature and available in a 14 × 16 mm2 323-ball 0.8 mm-pitch BGA. Finally, the on board reference buffer and bypass capacitors help minimize the external component requirements and further reduce board space.
To request a full data sheet or other design resources: request DDC2256A
추가 정보 요청
NDA에 따라 전체 데이터시트 및 기타 설계 리소스를 사용할 수 있습니다. 지금 요청
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | DDC2256A 256-Channel, Current-Input Analog-To-Digital Converter datasheet (Rev. B) | PDF | HTML | 2016/05/27 |
| EVM User's guide | DDC2256AEVM Introduction User's Guide | 2016/04/01 |
설계 및 개발
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DDC2256AEVM — DDC2256A 256채널 전류 입력 아날로그-디지털 컨버터 평가 모듈
The DDC2256AEVM evaluation module (EVM) is an evaluation kit for the DDC2256A, a 256-channel, current input, 24-bit analog-to-digital (A/D) converter. The EVM kit, comprised of a DUT board and a capture board, contains two DDC2256A (...)
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 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| NFBGA (ZZF) | 323 | Ultra Librarian |
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
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