Op amps drive 12-bit ADC

Offering exceptional precision and performance in small form factors, the op amps and ADC work together to support a range of industrial applications, including factory automation, test and measurement equipment, and data acquisition systems.

The TI TLV915x low-offset voltage, low-noise op amps combine outstanding DC precision with robust AC performance. The 16 V general-purpose devices feature low offset, low offset drift, rail-to-rail output, and 4.5 MHz bandwidth.

The low-noise operational amplifiers boast a wide differential input-voltage range, high output current of ±75 mA, and high slew rate of 20 V/µs, making them suitable for industrial use as well as high-side and low-side current sensing.

The TLV915x operational amplifiers are capable of driving the TI ADS7128 12-bit ADC, an eight-channel, multiplexed successive approximation register (SAR) type device.

The ADC's eight channels can be independently configured as digital inputs, digital outputs, or analogue inputs.

Operating in either autonomous or single-shot conversion mode, the ADS7128 ADC communicates using an I²C-compatible interface.

The device is an integrated zero-crossing-detect module, enabling transient rejection and hysteresis near configurable threshold crossings.

The ADS7128 ADC supports applications, including mobile robot CPU boards, digital multimeters, and rack servers.