Datasheet

0001
3FFF
2000
FSR 1LSB-
FSR/2
1LSB
Single-EndedAnalogInput
ADCCode(Hex)
V
IN
ADS7945
ADS7946
SBAS539B –JUNE 2011– REVISED SEPTEMBER 2011 www.ti.com
The ADS7946 output is in straight binary format. Figure 80 shows ideal transfer characteristics for this device.
Here, FSR is the full-scale range for the ADC input (AINx – AINxGND) and is equal to the reference input voltage
to the ADC (V
REF
). 1 LSB is equal to (V
REF
/2
N
), where N is the resolution of the ADC (N = 14 for the ADS7946).
Figure 80. ADS7946 Transfer Characteristics
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