ADS7950SRGER

Analog To Digital Converters (ADC) Overview

The ADS7950SRGER is a 12-bit, 4-channel, single-ended successive approximation register (SAR) analog-to-digital converter (ADC) from Texas Instruments. It operates at a sampling rate of 1 MSPS with a serial interface supporting up to 20 MHz. The device features an analog supply range of 2.7 V to 5.25 V and an I/O supply range of 1.7 V to 5.25 V. It includes two software-selectable input ranges (0 to VREF and 0 to 2 x VREF), programmable alarm levels, and GPIOs. Typical power dissipation is 14.5 mW at 1 MSPS with +VA = 5 V and +VBD = 3 V.

Analog To Digital Converters (ADC) Feature Summary

• 1-MHz sample rate with zero latency conversion
• 20-MHz serial interface for high-speed data transfer
• Two software-selectable unipolar input ranges: 0 to VREF and 0 to 2 x VREF
• Programmable alarm thresholds and individually configurable GPIOs

Analog To Digital Converters (ADC) Applications

• PLC/IPC systems
• Optical line card monitoring
• Medical instrumentation
• Digital power supplies
• High-speed closed-loop systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific package type associated with the SRGER suffix against the manufacturer's orderable addendum. Confirm that the component meets RoHS compliance requirements for the intended application environment. Ensure that the ordering documentation matches the exact part number to avoid discrepancies in pinout or electrical characteristics.

Analog To Digital Converters (ADC) Selection Notes

Select this device for applications requiring 12-bit resolution at 1 MSPS with low power consumption. Consider the 2.7 V to 5.25 V analog supply range and 1.7 V to 5.25 V digital supply range for compatibility with host systems. Evaluate the need for programmable alarms and GPIO functionality before finalizing the design.

Analog To Digital Converters (ADC) Part Context

The ADS7950 is part of the ADS79xx family, which includes pin-compatible devices with varying resolutions (8-, 10-, 12-bit) and channel counts (4, 8, 12, 16). This family shares common architectural features such as the SAR ADC core and serial interface, allowing for flexible design upgrades within the same footprint constraints.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the ADS79xx family include ADS7951 (8-channel), ADS7952 (12-channel), and ADS7953 (16-channel). Devices with different resolutions such as ADS7954 (10-bit) or ADS7958 (8-bit) may also be considered if resolution requirements allow.