Datasheet Analog Devices AD7707BR — Ficha de datos

3 V/5 V, ±10 V Input Range, 1 mW
3-Channel 16-Bit, Sigma-Delta ADC
AD7707
FEATURES FUNCTIONAL BLOCK DIAGRAM
DVDD REF IN(–) REF IN(+) AD7707
CHARGE
BALANCING
A/D CONVERTER AIN1
AIN2 MUX LOCOM
AIN3
VBIAS BUF 30kΩ A = 1 ≈ 128
DIGITAL FILTER 5kΩ 15kΩ
HICOM SERIAL INTERFACE 30kΩ REGISTER BANK
SCLK
CS
MCLK IN
MCLK OUT DIN CLOCK
GENERATION AGND DOUT DGND DRDY RESET Figure 1. for 3-wire operation. Gain settings, signal polarity and update
rate selection can be configured in software using the input
serial port. The part contains self-calibration and system calibration options to eliminate gain and offset errors on the part itself
or in the system.
CMOS construction ensures very low power dissipation, and the
power-down mode reduces the standby power consumption to …