AD7874SE

The AD7874SE is a four-channel, 12-bit data acquisition system (DAS) manufactured by Analog Devices Inc. It integrates a high-speed 12-bit ADC, an on-chip reference, an internal clock, and four track/hold amplifiers. This architecture allows all four input channels to be sampled simultaneously, preserving the relative phase information between channels — a key requirement in multi-channel signal processing.

The device achieves a sampling rate of 116 ksps with a parallel data interface. It operates from a dual ±5 V supply and is specified for an operating temperature range of -55°C to +125°C. The input voltage range is ±10 V, and the typical conversion time per channel is 8 µs, based on the AD7874 family characteristics.

Simultaneous sampling makes the AD7874SE suitable for applications such as phased-array sonar and AC motor controllers, where phase relationships between channels must be maintained. The on-chip reference and track/hold amplifiers reduce the need for external components, simplifying system design. The device is offered in a surface-mount 28-LCC package (11.43 x 11.43 mm) and is RoHS3 compliant.