ADC121C021-Q1
- I2C-Compatible 2-Wire Interface Which Supports Standard (100kHz), Fast (400kHz), and High Speed (3.4MHz) Modes
- Extended Power Supply Range (+2.7V to +5.5V)
- Up to Nine Pin-Selectable Chip Addresses (VSSOP Only)
- Out-of-Range Alert Function
- Automatic Power-Down Mode while Not Converting
- Very Small 6-Pin SOT and 8-Pin VSSOP Packages
- ADC121C021Q is an Automotive Grade Product that is AEC-Q100 Grade 2 Qualified
Key Specifications
- Resolution: 12 Bits (No Missing Codes)
- Conversion Time: 1µs (Typ)
- INL & DNL: ±1 LSB (Max) (Up to 22ksps)
- Throughput Rate: 188.9 ksps (Max)
- Power Consumption (at 22 ksps)
- 3V Supply: 0.26 mW (Typ)
- 5v Supply: 0.78 mW (Typ)
All trademarks are the property of their respective owners. I2C is a trademark of Texas Instruments.
These converters are low-power, monolithic, 12-bit, analog-to-digital converters (ADCs) that operates from a +2.7 to 5.5V supply. The converter is based upon a successive approximation register architecture with an internal track-and-hold circuit that can handle input frequencies up to 11MHz. These converters operate from a single supply which also serves as the reference. The device features an I2C-compatible serial interface that operates in all three speed modes, including high speed mode (3.4MHz).
The ADC121C021's Alert feature provides an interrupt that is activated when the analog input violates a programmable upper or lower limit value. The device features an automatic conversion mode, which frees up the controller and I2C interface. In this mode, the ADC continuously monitors the analog input for an "out-of-range" condition and provides an interrupt if the measured voltage goes out-of-range.
The ADC121C021 comes in two packages: a small 6-pin SOT package with an alert output, and an 8-pin VSSOP package with an alert output and two address selection inputs. The ADC121C021Q is available in a 6-pin SOT package. The ADC121C027 comes in a small 6-pin SOT package with an address selection input. The ADC121C027 provides three pin-selectable addresses while the 8-pin VSSOP version of the ADC121C021 provides nine pin-selectable addresses. Pin-compatible alternatives to the 6-pin SOT options are available with additional address options.
Normal power consumption using a +3V or +5V supply is 0.26mW or 0.78mW, respectively. The automatic power-down feature reduces the power consumption to less than 1µW while not converting. Operation over the industrial temperature range of −40°C to +105°C is ensured. Their low power consumption and small packages make this family of ADCs an excellent choice for use in battery operated equipment.
The ADC121C021 and ADC121C027 are part of a family of pin-compatible ADCs that also provide 8 and 10 bit resolution. For 8-bit ADCs see the ADC081C021 and ADC081C027. For 10-bit ADCs see the ADC101C021 and ADC101C027.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | ADC121C021/C021Q/C027 I2C-Compatible, 12-Bit ADC with Alert Function datasheet (Rev. F) | 2013/03/19 | |
Application note | A Basic Guide to I2C | PDF | HTML | 2022/11/08 | |
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 2015/05/21 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
ADC121C021EVM — ADC121C021 평가 모듈
The ADC121C021EVM is a demonstration kit for the ADC121C021, a 12-bit, 1-channel, 188.9ksps, 2-wire interface SAR analog-to-digital converter. The EVM allows users to evaluate the operation and performance of the ADC121C021 data converter. The board contains an external analog (...)
ANALOG-ENGINEER-CALC — 아날로그 엔지니어의 계산기
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 (...)
TINA-TI — SPICE 기반 아날로그 시뮬레이션 프로그램
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
SOT-23-THN (DDC) | 6 | 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
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.