Keithley 7037-D 30-Channel Digital I/O Card
Keithley Digital Input Board. Current: 1A, Current: 10⁹Ω, Current: 16mA per relay.
- Model
- Keithley 7037-D
- Calibration
- Available on request
- Price
- $350
- Status
- In stock
- RFQ ref
- 7037-D
This unit
The Keithley 7037-D is a 30-channel digital I/O card designed for integration into automated test and measurement systems. It combines single-pole relay switching with independent digital inputs and outputs, delivering versatile signal routing and control for complex test environments. The card accommodates 30 independent 1-pole Form A relay channels alongside 10 digital inputs and 10 digital outputs, all accessible through two heavy-duty 50-pin D-sub connectors rated for frequent industrial connections.
Technical Specifications Relay Switching
30 independent channels, 1-pole Form A configuration
Maximum signal: 110V DC, 110V rms, 155V peak (between any two inputs or chassis)
Switched current: 1A; power rating: 30VA (resistive load)
Channel resistance: <1.25Ω per conductor
Contact potential: <4µV per contact
Offset current: 10⁹Ω, 10⁹Ω, <100pF
Crosstalk at 1MHz, 50Ω load: <−40dB
Insertion loss: <0.25dB below 1MHz, <3dB below 10MHz
Relay drive current: 16mA per relay Digital I/O
10 independent outputs: open-collector drivers with internal 10kΩ pull-up resistors and flyback diodes
Output pull-up voltage: 5V internally supplied; external connection available up to 42V maximum
Output short circuit protection: up to 25V
Maximum sink current: 250mA per channel, 1A per card
Configurable negative or positive true logic
10 independent inputs with configurable 10kΩ pull-up or pull-down resistors
Maximum input voltage: 42V peak
Input logic: positive true
Key Features
Heavy-duty 50-pin D-sub connectors for industrial production environments
Hardware-configurable digital I/O logic levels
Flyback diode protection on output drivers
Low contact resistance and minimal crosstalk for signal integrity
Typical Applications Portable device testing, automated test setups, multi-channel signal routing, equipment control with external device monitoring.
Compatibility & Integration Compatible with Keithley 7001 and 7002 switch mainframes, as well as other 7XXX series cards.
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | 110V DC, 110V rms, 155V peak |
Keithley 7037-D — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keithley 7037-D. Calibration covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Keithley 7037-D faults: ESD-damaged input protection, failed driver ICs, connector pin damage. Most failures involve ESD-damaged input protection circuitry, failed logic driver ICs, or mechanical connector pin damage. Board-level component replacement is standard practice.
Keithley 7037-D price
This Keithley 7037-D is listed at $350. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keithley 7037-D calibration cost
NIST-traceable calibration for the Keithley 7037-D is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
