Data Sheet
AD5940
HIGH PRECISION POTENTIOSAT CONFIGURATION
The low bandwidth loop or the high bandwidth loop can be
used for potentiostat applications. The switch matrix allows 2-,
3-, or 4-wire electrode connections. Single reference electrode
configuration is available for the low bandwidth loop. Single or
dual reference electrode measurements configurations are
available for the higher bandwidth loop. For details, see the
AN-1563 Application Note.
V
ZERO
LPDAC0
V
BIAS
WAVEFORM
GENERATOR
GAIN
HSDAC
D5
CE0
EXCITATION
BUFFER
P11
SEQUENCER
SENSOR
16MHz
OSC
N2
V
ZERO
+
HSTIA
AIN1
ADC/
800kHz
FIFO
–
T2
T9
R
TIA
IVS
AD5940
Figure 52. Using a High Bandwidth AFE Loop in Potentiostat Mode
Rev. 0 | Page 127 of 130
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