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 W
• 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 - 1ms
• Low power dissipation - 6mW typical
• Automatic internal polarity detection
• Low input current - 2pA typical
• Optional digital control from a microcontroller, an ASIC, or
a dedicated digital circuit
• Flexible conversion speed vs. resolution trade-off

BENEFITS
• Low cost, simple functionality
• Wide dynamic signal range
• Very high noise immunity
• Automatic compensation and cancellation
of error sources
• Easy to use to acquire bipolar signals
• Up to 19 bit (18 bit + sign bit) single conversion
or 21 bit (20 bit + sign bit) multiple conversion
and noise performance
• Inherently linear and stable with temperature
and component variations