Keithley DAS-8/AO Analog-to-Digital Converter
Keithley Data Acquisition Systems (DAQ). Channels: ** 8, Channels: ** 2 (12-bit), Resolution: ** 12-bit successive approximation.
- Model
- Keithley DAS-8/AO
- Calibration
- Available on request
- Price
- $210
- Status
- In stock
- RFQ ref
- DAS-8/AO
This unit
The Keithley DAS-8/AO is a 12-bit successive approximation analog-to-digital converter designed for precision data acquisition in IBM PC and compatible systems. This ISA bus card provides 8 analog input channels with software-programmable input ranges, 2 analog output channels, and an onboard 1 MHz crystal oscillator for sample timing. Unlike fixed-range variants in the DAS-8 series, the DAS-8/AO delivers flexible input and output configurations with simultaneous output capability.
Technical Specifications
Analog Input Channels: 8
Analog Output Channels: 2 (12-bit)
ADC Resolution: 12-bit successive approximation
A/D Conversion Time: 25 µs typical, 35 µs maximum
Input Ranges: Software-programmable - ±10 V, ±5 V, ±0.5 V, ±0.05 V, ±0.01 V, 0 to +10 V, 0 to +1 V, 0 to +0.02 V
Output Ranges: Independently switch-selectable - ±10 V, ±5 V, ±2.5 V, 0 to +10 V, 0 to +5 V, 4 to 20 mA
Sampling Rate: Up to 4 ksamples/s; maximum per-channel rate is 4 kHz divided by the number of channels
Clock Source: Onboard 1 MHz crystal oscillator; external clock input supported
Counter/Timer: Onboard 82C54 programmable counter-timer with three 16-bit counters for event counting, pulse/waveform generation, and frequency/period/pulse-width measurements
Digital I/O: 7 bits TTL (one 4-bit output port, one 3-bit input port)
Reference Output: +10.00 V (±0.1 V) precision reference; 2 mA source/sink capability
Interrupts: Jumper-selectable external interrupt input (levels 2–7)
Key Features
Simultaneous update of both analog output channels
Software-programmable input ranges eliminate fixed-range limitations
External interrupt capability with six selectable levels
Dual D-type connectors for analog and digital signal routing
Typical Applications Data acquisition, sensor signal conditioning, analog monitoring, and real-time laboratory measurement in DOS and Windows 95/98 environments.
Compatibility & Integration Bus: ISA (Industry Standard Architecture)
Host Systems: IBM PC, AT, 386, Pentium-compatible Operating Systems: MS-DOS/PCDOS 3.1 or higher; Windows 95/98 Memory: Minimum 2 MB
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | ±0.01 V, ±0.05 V, ±0.5 V, ±10 V, ±2.5 V, ±5 V, 0 to +0.02 V (input) |
Keithley DAS-8/AO — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keithley DAS-8/AO. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Keithley DAS-8/AO price
This Keithley DAS-8/AO is listed at $210. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keithley DAS-8/AO calibration cost
NIST-traceable calibration for the Keithley DAS-8/AO is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →
