Data Sheet AD5940/AD5941
High Precision, Impedance, and Electrochemical Front End
FEATURES
► SPI serial input/output
► Analog input ► 16-bit ADC with both 800 kSPS and 1.
6 MSPS options
►
Voltage, current, and impedance measurement capability ► Internal and external current and
voltage channels
► Ultralow leakage switch matrix and input mux
► Input buffers and programmable gain amplifier
►
Voltage DACs ► Dual output
voltage DAC with an output range of 0.
2 V to 2.
4 V
► 12-bit VBIAS0 output to bias potentiostat ► 6-bit VZERO0 output to bias TIA ► Ultra low power: 1 µA
► 1 high speed, 12-bit DAC ► Output range from high-speed DAC (HSDAC): ±607 mV
► Programmable gain amplifier on HSDAC output ...