ADA4351-2 Precision Programmable Gain TIA

Analog Devices ADA4351-2 Precision Programmable Gain Transimpedance Amplifier (PGTIA) is a compact, monolithic, dual-channel, precision PGTIA. The ADA4351-2 is a breakthrough solution for precisely measuring small currents over a wide dynamic range. The precision of the ADA4351-2 over a wide temperature range of −40°C to +125°C enables users to perform one calibration of the end equipment at room temperature, thereby saving test time and cost. The ADA4351-2 integrates two low-off leakage current switches per channel, and the gain is programmable using two user-selectable external resistors to provide a flexible, fully functional compact PGTIA solution. Separate analogue and digital supplies allow the amplifier of the ADA4351-2 to operate on bipolar supplies, while the integrated logic level shifting allows the digital interface to remain ground-referenced. Additionally, with its robust output stage and low noise, the ADA4351-2 can directly drive 16-bit precision analogue-to-digital converters (ADCs, such as AD4696), providing a complete analogue front-end (AFE) to address the most challenging precision current measurement applications.