AD7171
PRODUCTION16-Bit, Low Power, Sigma-Delta ADC
- Part Models
- 2
- 1ku List Price
- Starting From $1.46
Overview
- Output data rate: 125 Hz
- Pin-programmable power-down and reset
- Status function
- Internal clock oscillator
- Current: 135 µA
- Power supply: 2.7 V to 5.25 V
- −40°C to +105°C temperature range
- Package: 10-lead 3 mm × 3 mm LFCSP
The AD7171 is a very low power, 16-bit, analog-to-digital converter (ADC). It contains a precision, 16-bit, Σ-Δ ADC and an on-chip oscillator. Consuming only 135 µA, the AD7171 is particularly suitable for portable or battery operated products where very low power is a requirement. The AD7171 also has a power-down mode in which the device consumes 5 μA, thus increasing the battery life of the product.
For ease of use, dedicated pins control all of the features of the AD7171. Each time a data read occurs, eight status bits are appended to the 16-bit conversion. These status bits contain a pattern sequence that can be used to confirm the validity of the serial transfer.
The output data rate of the AD7171 is 125 Hz, whereas the settling time is 24 ms. The AD7171 has one differential input and a gain of 1. This is useful in applications where the user needs to use an external amplifier to implement system-specific filtering or gain requirements.
The AD7171 operates with a power supply from 2.7 V to 5.25 V. It is available in a 10-lead LFCSP.
The AD7170 is a 12-bit version of the AD7171. It has the same feature set as the AD7171 and is pin-for-pin compatible.
Applications
- Weigh scales
- Pressure measurement
- Industrial process control
- Portable instrumentation
Documentation
Data Sheet 1
User Guide 1
Technical Articles 2
Video 1
Circuit Note 2
Device Drivers 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7171BCPZ-500RL7 | 10-Lead LFCSP (3mm x 3mm) | ||
| AD7171BCPZ-REEL7 | 10-Lead LFCSP (3mm x 3mm) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
FPGA/HDL 4
Evaluation Software 0
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Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Differential Amplifiers 1 | ||
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| Interface Transceivers & Isolators 3 | ||
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| ADUM1301 | PRODUCTION | Triple-Channel Digital Isolator |
| Operational Amplifiers (Op Amps) 1 | ||
| AD8628 | PRODUCTION | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier |
| Voltage References 6 | ||
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| ADR431 | PRODUCTION | Ultralow Noise XFET® Voltage References with Current Sink and Source Capability |
| ADR425 | PRODUCTION | Ultraprecision, Low Noise, 5.00 V XFET® Voltage Reference |
| ADR395 | PRODUCTION | 5.0 V Micropower, Low Noise Precision Voltage Reference with Shutdown |
| ADR381 | PRODUCTION | 2.048 V and 2.5 V Bandgap Voltage References |
| ADR391 | PRODUCTION | 2.5V Micropower, Low Noise Precision Voltage Reference with Shutdown |
Evaluation Kits
AD7171 Evaluation Board
