Product Summary

The AD7866 is a dual 12-bit high speed, low power, successive
approximation ADC. The part operates from a single 2.7 V to
5.25 V power supply and features throughput rates up to 1 MSPS.
The device contains two ADCs, each preceded by a low noise,
wide bandwidth track-and-hold amplifier that can handle
input frequencies in excess of 10 MHz.
The conversion process and data acquisition are controlled
using standard control inputs, allowing easy interfacing to
microprocessors or DSPs. The input signal is sampled on the
falling edge of CS; conversion is also initiated at this point.
The conversion time is determined by the SCLK frequency.
There are no pipelined delays associated with the part.
The AD7866 uses advanced design techniques to achieve
very low power dissipation at high throughput rates. With 3 V
supplies and 1 MSPS throughput rate, the part consumes a
maximum of 3.8 mA. With 5 V supplies and 1 MSPS, the
current consumption is a maximum of 4.8 mA. The part also
offers flexible power/throughput rate management when
operating in sleep mode.
The analog input range for the part can be selected to be a 0 V
to VREF range or a 2  VREF range with either straight binary or
twos complement output coding. The AD7866 has an on-chip
2.5 V reference that can be overdriven if an external reference
is preferred. Each on-board ADC can also be supplied with a
separate individual external reference.
The AD7866 is available in a 20-lead thin shrink small outline
(TSSOP) package.

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
AD7866ARUZ
AD7866ARUZ

IC ADC 12BIT 2CH DUAL 20-TSSOP
Data Sheet
0-1: $7.27
1-25: $6.11
25-100: $5.62
100-250: $5.12
250-500: $4.79
500-1000: $4.41
AD7866ARUZ-REEL
AD7866ARUZ-REEL

IC ADC 12BIT 2CHAN DUAL 20TSSOP
Data Sheet
0-2500: $4.41
AD7866ARUZ-REEL7
AD7866ARUZ-REEL7

IC ADC 12BIT 2CHAN DUAL 20TSSOP
Data Sheet
0-1000: $4.41