ADS8512IDWR

Analog To Digital Converters (ADC) Overview

The ADS8512IDWR is a 12-bit, 40-kSPS successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates on a single +5-V supply and features an internal 2.5-V reference. The device supports multiple input ranges including ±10 V, ±5 V, ±3.33 V, 0–10 V, and 0–4 V via external resistor networks. Key electrical specifications include a maximum integral nonlinearity (INL) of ±1 LSB for the 'I' grade, a signal-to-noise plus distortion ratio (SINAD) of 73.9 dB at a 10-kHz input frequency, and a power dissipation of 32.5 mW during operation. It utilizes an SPI-compatible serial interface with master/slave capabilities.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 40-kSPS throughput rate
• Internal 2.5-V reference with buffer output
• Configurable input ranges: ±10 V, ±5 V, ±3.33 V, 0–10 V, 0–4 V
• SPI-compatible serial interface with global CONV and 3-stated bus

Analog To Digital Converters (ADC) Applications

• Industrial process control systems
• Test and measurement equipment
• Medical instrumentation
• Portable data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix 'WR' corresponds to the tape-and-reel packaging containing 1000 units per reel. Confirm the 'I' temperature grade designation matches the required -40°C to +85°C industrial operating range. Ensure the SO-16 package type aligns with the printed circuit board footprint requirements.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS8512IBDW variant if stricter linearity specifications are required, as it offers a maximum INL of ±0.5 LSB compared to the ±1 LSB limit of the ADS8512IDWR. Consider the pin-compatible ADS8513 if higher 16-bit resolution is necessary for the application design.

Analog To Digital Converters (ADC) Part Context

The ADS8512 belongs to the ADS8512 family of low-power sampling ADCs. It is functionally similar to the ADS7812 and ADS7813 series but provides integrated reference and drive capabilities. The IDWR suffix specifically denotes the industrial temperature grade packaged in a tape-and-reel format for automated assembly.

Analog To Digital Converters (ADC) Replacement Considerations

ADS8512IBDWR is a direct replacement offering improved linearity (±0.5 LSB max INL). ADS8513IDWR provides pin-compatible 16-bit resolution.