AD7705 Analog Devices, AD7705 Datasheet - Page 4

• Manufacturer Part Number: AD7705
• Description: 3V/5V, 1 mW, 2-Channel Differential, 16-Bit Sigma-Delta ADC
• Manufacturer: Analog Devices

Specifications of AD7705

• Resolution (bits): 16bit
• # Chan: 2
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: Bip (Vref)/(PGA Gain),Uni (Vref)/(PGA Gain)
• Adc Architecture: Sigma-Delta
• Pkg Type: DIP,SOIC,SOP

AD7705/AD7706
PRODUCT HIGHLIGHTS
1.
2.
The AD7705/AD7706 devices consume less than 1 mW at
3 V supplies and 1 MHz master clock, making them ideal
for use in low power systems. Standby current is less than 8
μA.
The programmable gain input allows the AD7705/AD7706
to accept input signals directly from a strain gage or
transducer, removing a considerable amount of signal
conditioning.
Rev. C | Page 4 of 44
3.
4.
The AD7705/AD7706 are ideal for microcontroller or DSP
processor applications with a 3-wire serial interface,
reducing the number of interconnect lines and reducing
the number of opto-couplers required in isolated systems.
The parts feature excellent static performance
specifications with 16 bits, no missing codes, ±0.003%
accuracy, and low rms noise (<600 nV). Endpoint errors
and the effects of temperature drift are eliminated by on-
chip calibration options, which remove zero-scale and full-
scale errors.