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AD7997BRU-0REEL
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Product Detailed Parameters
- Description：IC ADC 10BIT SAR 20TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Bits：10
- Sampling Rate (Per Second)：188k
- Number of Inputs：8
- Input Type：Single Ended
- Data Interface：I2C
- Configuration：MUX-S/H-ADC
- Ratio - S/H:ADC：1:01
- Number of A/D Converters：1
- Architecture：SAR
- Reference Type：External
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：20-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-TSSOP
- Mounting Type：Surface Mount
- Grade：-
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Overview
The AD7997BRU-0REEL is an 8-channel, 10-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features a single-ended input architecture and operates from a 2.7 V to 5.5 V supply. The device supports I2C-compatible serial interfaces with standard and fast modes. Key electrical parameters include a maximum throughput rate of 188 kSPS, a typical conversion time of 2 µs, and a shutdown current of 1 µA maximum. It is housed in a 20-lead TSSOP package and functions within a temperature range of −40°C to +85°C.
Feature Summary
- Integrates an 8-channel multiplexer and track-and-hold amplifier for single-ended signals.
- Supports pin-selectable I2C addressing to allow multiple devices on the same bus.
- Includes programmable limit registers with an open-drain out-of-range alert output.
Applications
- Battery-powered data acquisition systems
- Industrial process control monitoring
- Portable instrumentation
Procurement Notes
Verify the specific suffix 'RU' against the manufacturer's official documentation to confirm the package type and reel specifications. Ensure the ordering information matches the exact component designation required for the design. Cross-reference the datasheet revision to confirm all technical parameters are current before finalizing procurement orders.
Selection Notes
Select this component when an 8-channel ADC with I2C connectivity is required. Verify that the 10-bit resolution meets system accuracy needs. Confirm compatibility with the available I2C clock speeds and ensure the external reference voltage falls within the specified 1.2 V to VDD range for proper operation.
Part Context
This part belongs to the AD7997/AD7998 family of low-power, 8-channel ADCs. The AD7997 variant specifically provides 10-bit resolution, while the AD7998 offers 12-bit resolution. Both share identical pinouts and interface protocols, differing primarily in their internal resolution and associated linearity specifications.
Replacement Considerations
The AD7997BRUZ-0REEL is listed as a direct replacement for the AD7997BRU-0REEL. Verify that the package dimensions and pinout remain identical to ensure mechanical compatibility during substitution.
