AD7440 Analog Devices, AD7440 Datasheet - Page 11

• Manufacturer Part Number: AD7440
• Description: Differential Input, 1 MSPS, 12- (AD7450A) & 10-Bit (AD7440) ADCs
• Manufacturer: Analog Devices

Specifications of AD7440

• Resolution (bits): 10bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOT

Power Supply Rejection Ratio (PSRR)
The power supply rejection ratio is the ratio of the power in
the ADC output at full-scale frequency, f, to the power of a
100 mV p-p sine wave applied to the ADC V
frequency f
1 MHz.
S
. The frequency of this input varies from 1 kHz to
DD
supply of
Rev. C | Page 11 of 28
Pf is the power at frequency f in the ADC output; Pfs is the
power at frequency f
PSRR (dB) = 10log(Pf/Pf
S
in the ADC output.
S
)
AD7440/AD7450A