Keithley DAS-1802HR-DA 16-Bit Multifunctional I/O Board

The Keithley DAS-1802HR-DA is a 16-bit multifunctional I/O board engineered for precision data acquisition and automated control in laboratory and production test environments. It combines dual 16-bit analog outputs, high-resolution single-ended analog inputs, and mixed-signal digital I/O into a compact PCI/ISA/PCMCIA form factor, delivering the analog and digital connectivity required for instrumentation integration without compromise on measurement accuracy.

Technical Specifications Analog Inputs

16-bit resolution at up to 100 kS/s sampling rate

Single-ended configuration with four programmable gain settings (1, 2, 4, 8×)

Overvoltage protection: continuous ±35 V on any single channel

Input impedance: 100 nA maximum at 25 °C

Sample-and-hold acquisition: 10 µs to 0.1% full-scale step

Gain drift: ±50 ppm/°C of full-scale maximum

Zero drift: ±10 µV/°C maximum Analog Outputs

Two independent 16-bit DAC channels, 2's complement coding

Output range: −10.0000 V to +9.999695 V

Update rate: 500 kS/s

Integral nonlinearity: ±1 LSB typical, ±2 LSBs maximum

Differential nonlinearity: ±1 LSB typical, ±2 LSBs maximum

Monotonic across all 16 bits Digital I/O

3 LSTTL inputs: VIL 0.8 V max, VIH 2.0 V minimum

4 standard LSTTL outputs: VOL 0.5 V max at 8 mA, VOH 2.4 V minimum at −400 µA Memory & Support

1024-location input FIFO buffer

Expandable to 256 analog inputs via external chaining

256-location gain-channel queue

+5.0 V ± 0.2 V reference output at ±2 mA load capacity and 50 ppm/°C temperature coefficient

Key Features

Rear-panel 50-pin D-type connector consolidates all analog and digital I/O

Compact footprint: 4.25 in × 5.0 in (10.8 cm × 12.7 cm), 4 oz (120 g)

Operating temperature: 0 to 50 °C; storage −20 to +70 °C

Configured via DriverLINX utility; compatible with standard data acquisition software packages

Typical Applications

Automated test systems requiring simultaneous analog measurement and control

Laboratory data logging with programmable gain switching

Process monitoring and equipment characterization

Sensor interfacing in mixed-signal environments

Compatibility & Integration Supports PCI, ISA, and PCMCIA bus architectures. Designed for Installation Category I and II per IEC 60664, suited for measurement and control signals at non-mains potential.