ADS7953SBDBTG4

Analog To Digital Converters (ADC) Overview

The ADS7953SBDBTG4 is a 12-bit, 16-channel successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Texas Instruments. It supports single-ended inputs and operates with an analog supply voltage range of 2.7 V to 5.25 V and a digital supply voltage range of 1.7 V to 5.25 V. The device achieves a sampling rate of 1 MSPS with a typical power consumption of 11.5 mW. Key performance metrics include a signal-to-noise ratio (SNR) of 70 dB and a signal-to-noise and distortion ratio (SINAD) of 71.3 dB. Differential nonlinearity (DNL) and integral nonlinearity (INL) are specified at +/- 1 LSB. It utilizes an external reference voltage of 2.51 V and communicates via an SPI interface.

Analog To Digital Converters (ADC) Feature Summary

• Integrates 16 single-ended channels within a compact 38-pin TSSOP package for space-constrained designs.
• Delivers low-power operation suitable for battery-powered applications with microPower SAR architecture.
• Ensures high accuracy through 12-bit resolution with linear performance characterized by +/- 1 LSB DNL/INL.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel data acquisition.
• Portable instrumentation devices needing low power consumption and high channel count.
• Automotive sensor interfaces operating across extended temperature ranges.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS adherence as per manufacturer specifications. Confirm the package type is TSSOP-38 and ensure the ordering part number matches the exact pinout and thermal characteristics required for your PCB layout. Cross-reference the datasheet revision date to ensure compatibility with current design standards.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance of channel count, speed, and power efficiency is required. The 12-bit resolution is adequate for general-purpose sensing but may require higher resolution models for precision metrology. Ensure the system can accommodate an external voltage reference, as the device does not integrate an internal one. Verify that the SPI interface timing meets the host controller's capabilities.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7953 family of microPower SAR ADCs from Texas Instruments. It shares architectural similarities with other members in the series but is distinguished by its 16-channel configuration and specific package variant. The G4 suffix typically denotes environmental compliance features consistent with Texas Instruments' product labeling conventions for lead-free materials.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include the ADS7953SBDBTR, which shares identical electrical specifications and pinout. When replacing, verify that the tape-and-reel packaging format of the substitute matches the assembly equipment requirements. Ensure the replacement part maintains the same operating temperature range and supply voltage constraints.