Analog Devices Inc. AD7859BSZ

Description
The AD7859/AD7859L are high-speed, low-power, 8-channel, 12-bit ADCs that operate from a single 3 V or 5 V power supply. The AD7859 is optimized for speed, while the AD7859L is optimized for low power. The ADCs contain self-calibration and system calibration options to ensure accurate operation over time and temperature. They also have several power-down options for low-power applications.
The AD7859 is capable of a 200 kHz throughput rate, while the AD7859L is capable of a 100 kHz throughput rate. The input track-and-hold acquires a signal in 500 ns and features a pseudo-differential sampling scheme. The AD7859 and AD7859L input voltage range is 0 to VDD (unipolar) and -VE/2 to VREP/2 about VR/2 (bipolar) with both straight binary and 2's complement output coding, respectively. The input signal range is to the supply, and the parts are capable of converting full-power signals to 100 kHz.
CMOS construction ensures low power dissipation of typically 5.4 mW for normal operation and 3.6 µW in power-down mode. The parts are available in 44-pin, plastic quad flatpack package (PQFP) and plastic lead chip carrier (PLCC).

Features
Specified for VDD of 3 V to 5.5 V
AD7859-200 kSPS; AD7859L-100 kSPS
System and self-calibration
Low power
Normal operation
AD7859: 15 mW (VDD = 3 V)
AD7859L: 5.5 mW (VDD = 3 V)
Using automatic power-down after conversion (25 pW)
Flexible parallel interface:
16-bit parallel/8-bit parallel
44-pin PQFP and PLCC packages

Applications
Battery-powered systems (personal digital assistants, medical instruments, mobile communications)
Pen computers
Instrumentation and control systems
High-speed modems