ADS7871IDBG4

ADCs/DACs - Special Purpose Overview

The ADS7871IDBG4 is a 14-bit, 48 kSPS data acquisition system (DAS) manufactured by Texas Instruments. It integrates an analog-to-digital converter (ADC), an 8-channel multiplexer (MUX), a programmable gain amplifier (PGA), and an internal reference voltage source into a single chip. The device utilizes a successive approximation architecture with a serial interface compatible with SPI, QSPI, Microwire, and 8051 protocols. It operates on a single power supply ranging from 2.7 V to 5.5 V and is housed in a 28-pin SSOP package. The component supports an operating temperature range of -40°C to +85°C.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 14-bit ADC with 48 kSPS sampling rate
• Includes 8-channel MUX, PGA, and internal reference
• Compatible with SPI, QSPI, Microwire, and 8051 interfaces
• Single-supply operation from 2.7 V to 5.5 V

ADCs/DACs - Special Purpose Applications

• Portable battery-powered systems
• Low-power instrumentation
• Industrial process control
• Smart sensor applications

ADCs/DACs - Special Purpose Procurement Notes

Verify the suffix 'BG4' indicates lead-free and RoHS compliance as per manufacturer standards. Confirm the package type is 28-SSOP with a .3 mm body width. Ensure the operating temperature grade corresponds to the 'I' designation (-40°C to +85°C). Cross-reference the datasheet for specific pinout configurations and electrical characteristics relevant to the design.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a high-resolution 14-bit conversion is required alongside signal conditioning features. The integrated PGA eliminates the need for external amplifiers for low-level signals. Verify that the 48 kSPS throughput meets the application's speed requirements. Check compatibility with the host microcontroller's serial communication protocol.

ADCs/DACs - Special Purpose Part Context

The ADS7871IDBG4 belongs to the ADS787x family of data acquisition systems. It shares pin compatibility with the ADS7870, facilitating direct upgrades or replacements in existing designs. The device consolidates multiple discrete components into a single IC to reduce board space and system complexity.

ADCs/DACs - Special Purpose Replacement Considerations

The ADS7870 is a pin-compatible alternative within the same family. Verify functional differences such as resolution (12-bit vs. 14-bit) and channel count before substitution.