Overview
The ADS8671IPWR is a high-performance, 14-bit analog-to-digital converter (ADC) produced by Texas Instruments. It is part of the ADS8671 family, which features a successive approximation register (SAR) ADC architecture. This device is designed for high-speed and high-precision data acquisition, integrating an analog front-end (AFE) input driver circuit, overvoltage protection up to ±20 V, and an on-chip 4.096-V reference with low temperature drift. The ADS8671IPWR operates on a single 5-V analog supply and supports both bipolar and unipolar input ranges, making it versatile for various applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sample Rate | 1 MSPS |
| Input Type | Single-Ended, Differential, Pseudo-Differential |
| Input Ranges | Bipolar: ±12.288 V, ±10.24 V, ±6.144 V, ±5.12 V, ±2.56 V; Unipolar: 0 V–12.288 V, 0 V–10.24 V, 0 V–6.144 V, 0 V–5.12 V |
| Analog Supply Voltage | 4.75 V to 5.25 V |
| Digital Supply Voltage | 1.65 V to 5.25 V |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | 16-TSSOP |
| Power Consumption (Typical) | 34 mW |
| SNR | 84.5 dB |
| THD (Typical) | -105 dB |
| Interface | multiSPI™, backward-compatible to traditional SPI |
Key Features
- High-speed SAR ADC with 1 MSPS sampling rate
- Software programmable input ranges for both bipolar and unipolar inputs
- Integrated analog front-end (AFE) input driver circuit
- Overvoltage protection up to ±20 V
- On-chip 4.096-V reference with low temperature drift
- High resistive input impedance (≥ 1 MΩ)
- Excellent performance: DNL ±0.25 LSB, INL ±0.4 LSB
- multiSPI™ digital interface with daisy-chain capability
- Extended industrial temperature range: -40°C to +125°C
Applications
The ADS8671IPWR is suitable for a variety of high-precision data acquisition applications, including:
- Industrial automation and control systems
- Medical devices and diagnostic equipment
- Aerospace and defense systems
- Test and measurement instruments
- Automotive systems requiring high reliability and precision
Q & A
- What is the resolution of the ADS8671IPWR?
The ADS8671IPWR has a resolution of 14 bits.
- What is the maximum sampling rate of the ADS8671IPWR?
The maximum sampling rate is 1 MSPS.
- What types of input ranges does the ADS8671IPWR support?
The device supports both bipolar and unipolar input ranges.
- What is the operating temperature range of the ADS8671IPWR?
The operating temperature range is -40°C to 125°C.
- Does the ADS8671IPWR have overvoltage protection?
- What type of digital interface does the ADS8671IPWR use?
The device uses a multiSPI™ digital interface, which is backward-compatible to traditional SPI.
- What is the typical power consumption of the ADS8671IPWR?
The typical power consumption is 34 mW.
- Is the ADS8671IPWR RoHS compliant?
- What is the input impedance of the ADS8671IPWR?
The input impedance is ≥ 1 MΩ.
- Does the ADS8671IPWR have an internal oscillator?
