Advanced Linear Devices ALD500R
PRECISION INTEGRATING ANALOG PROCESSOR
APPLICATIONS
● 4 1/2 digits to 5 1/2 digits plus sign measurements● Precision analog signal processor
● Precision sensor interface
● High accuracy DC measurement functions
● Portable battery operated instruments
● Computer peripheral
● PCMCIA
FEATURES
● Resolution up to 18 bits plus sign bit and over-range bit● Accuracy independent of input source impedances
● Accurate on-chip voltage reference
● Tempco as low as 10 ppm/°C guaranteed
● Chip select - power down mode
● High input impedance of 1012 Ω
● Inherently filters and integrates any external noise spikes
● Differential analog input
● Wide bipolar analog input voltage range ±3.5V
● Automatic zero offset compensation
● Low linearity error - as low as 0.001% typical
● Fast zero-crossing comparator - 1µs
● Low power dissipation - 6mW typical
● Automatic inte