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The Keithley DMM7512 Dual Channel 7½-Digit Sampling Multimeter combines two full-function, high-accuracy, high-sampling-speed DMMs into a compact 1U-high, full-rack-wide chassis. Each DMM has identical functionality and operates entirely independently of the other, so the small form factor saves rack space in high-instrument-density test systems without compromising measurement performance. Each channel reaches a basic one-year accuracy as low as 14 ppm for DC volts, 24 ppm for resistance, and 60 ppm for DC current.
With dual-channel capability, fast signal sampling, high-speed data transfer rates reaching up to 100,000 measurements/s, and internal execution of program test scripts, the DMM7512 reduces space and test time in automated test systems. Its 10 nV, 0.1 µΩ, and 1 pA sensitivities support high-resolution low-level measurements such as portable device sleep currents. Using the two DMMs as synchronized digitizers, one for voltage and one for current, power can be accurately computed on time-varying waveforms, and the instrument can measure current in all operating states of a device including the sleep state and the current burst state when the device is transmitting.
Keithley Instruments operates as a Tektronix company, and its instruments are issued under that combined identity.
| Specification | Value |
|---|---|
| DC Voltage Accuracy (1 Year, TCAL ±5 °C) ±(ppm of reading + ppm of range) | |
| 100 mV range (10 nV res, >10 GΩ or 10 MΩ ±1%) | 18 + 30 |
| 1 V range (100 nV res, >10 GΩ or 10 MΩ ±1%) | 15 + 5 |
| 10 V range (1 µV res, >10 GΩ or 10 MΩ ±1%) | 14 + 1.2 |
| 100 V range (10 µV res, 10 MΩ ±1%) | 40 + 15 (22 + 15 within 30 days of autocalibration) |
| 1000 V range (100 µV res, 10 MΩ ±1%) | 40 + 10 (23 + 10 within 30 days of autocalibration) |
| DC Voltage Characteristics | |
| ADC Linearity | 1.0 ppm of reading + 1.0 ppm of range |
| Input Impedance | 100 mV to 10 V Ranges: Selectable >10 GΩ || <400 pF (auto) or 10 MΩ ±1%; 100 V to 1000 V Ranges: 10 MΩ ±1% |
| Input Bias Current | <50 pA at 23 °C (autozero off or input impedance 10 MΩ) |
| Common Mode Current | <2.1 µA peak-peak in 1 MHz bandwidth; <100 nA peak-peak in 1 kHz bandwidth |
| Common Mode Voltage | 500 VPEAK LO terminal to chassis maximum |
| DC Voltage Autozero Off Error | For ±1 °C and ≤10 minutes, add ±(8 ppm of reading + 15 µV) |
| Normal Mode Rejection (line frequency ±0.1%) | Line Sync On: 110 dB at 5 PLC, 90 dB at 1 PLC, 45 dB at ≤0.2 PLC; Line Sync Off: 60 dB at 5 PLC, 60 dB at 1 PLC |
| Common Mode Rejection (100 Ω unbalanced in LO) | 140 dB at 5 PLC (Line Sync On), 140 dB at 1 PLC (On), 120 dB at 0.2 PLC (On), 80 dB at ≤0.2 PLC (Off) |
| Resistance Accuracy (1 Year, TCAL ±5 °C) ±(ppm of reading + ppm of range) | |
| 1 Ω (0.1 µΩ res, 10 mA test current) | 50 + 60 |
| 10 Ω (1 µΩ res, 10 mA) | 50 + 6 |
| 100 Ω (10 µΩ res, 1 mA) | 47 + 4 |
| 1 kΩ (100 µΩ res, 1 mA) | 41 + 3 |
| 10 kΩ (1 mΩ res, 100 µA) | 42 + 3 |
| 100 kΩ (10 mΩ res, 10 µA) | 50 + 3 |
| 1 MΩ (100 mΩ res, 10 µA) | 50 + 5 |
| 10 MΩ (1 Ω res, 0.69 µA || 10 MΩ) | 400 + 10 |
| 100 MΩ (10 Ω res, 0.69 µA || 10 MΩ) | 2000 + 30 |
| 1 GΩ (100 Ω res, 0.69 µA || 10 MΩ) | 13000 + 200 |
| Resistance Characteristics | |
| Maximum 4-Wire Ohms Lead Resistance | 5 Ω per lead for 1 Ω range, 10% of range per lead for 10 Ω to 1 kΩ ranges; 1 kΩ per lead for all other ranges |
| Offset Compensation | Selectable on 4-wire, 1 Ω to 100 kΩ ranges |
| Open Lead Detector | Default is off |
| Input Current Limit | For ±12 V to ±40 V: ±13 mA source or sink, typical; for greater than ±40 V: ±130 µA source or sink, typical |
| DC Current Accuracy (1 Year, TCAL ±5 °C) ±(ppm of reading + ppm of range) | |
| 10 µA (1 pA res, 15 mV burden) | 125 + 40 |
| 100 µA (10 pA res, 15 mV) | 100 + 15 |
| 1 mA (100 pA res, 15 mV) | 100 + 15 |
| 10 mA (1 nA res, 20 mV) | 100 + 15 |
| 100 mA (10 nA res, 200 mV) | 400 + 30 |
| 1 A (100 nA res, 400 mV) | 450 + 50 |
| 3 A (1 µA res, 1300 mV) | 450 + 40 |
| DC Current Characteristics | |
| Effective Internal Shunt Value | 10 µA: 1 kΩ; 100 µA: 100 Ω; 1 mA: 10 Ω; 10 mA: 1 Ω; 100 mA: 0.1 Ω; 1 A: 0.1 Ω; 3 A: 0.1 Ω |
| Autozero Off Error (±1 °C, ≤10 min, add ±(8 ppm of reading + range error)) | 10 µA: 150 pA; 100 µA: 1.5 nA; 1 mA: 15 nA; 10 mA: 150 nA; 100 mA: 15 µA; 1 A: 150 µA; 3 A: 150 µA |
| Temperature — 4-Wire / 3-Wire RTD (Accuracy 2 Year, TCAL ±5 °C) | |
| RTD Types | 100 Ω platinum PT100, D100, F100, PT385, PT3916; or user-configurable 0 Ω to 10 kΩ |
| 4-Wire RTD (–200° to 400 °C, 0.01 °C res) | 0.09 °C |
| 3-Wire RTD (–200° to 400 °C, 0.01 °C res) | 0.75 °C |
| Temperature — Thermistor (Accuracy 2 Year, TCAL ±5 °C) | |
| Thermistor Types | 2.252 kΩ, 5 kΩ, and 10 kΩ |
| Thermistor (–80° to +150 °C, 0.01 °C res) | 0.08 °C |
| Temperature — Thermocouple (Accuracy 2 Year, TCAL ±5 °C, simulated reference junction) | |
| B (350 to +1820 °C, 0.1 °C res) | 0.9 °C |
| E (−200 to +1000 °C, 0.001 °C res) | 0.4 °C |
| J (−200 to +760 °C, 0.001 °C res) | 0.4 °C |
| K (−200 to +1372 °C, 0.001 °C res) | 0.4 °C |
| N (−200 to +1300 °C, 0.001 °C res) | 0.4 °C |
| R (0 to +1768 °C, 0.1 °C res) | 0.9 °C |
| S (0 to +1768 °C, 0.1 °C res) | 0.9 °C |
| T (−100 to +400 °C, 0.001 °C res) | 0.4 °C |
| Continuity (2 Year, TCAL ±5 °C) | |
| 1.0000 kΩ range (100 mΩ res, 1 mA test current, 14.0 V open circuit) | 100 + 100 ±(ppm of reading + ppm of range) |
| Continuity High Limit | User-selectable; default 10 Ω |
| Digitize Voltage Accuracy (1 Year, TCAL ±5 °C) ±(ppm of reading + ppm of range) | |
| 100 mV (1 µV res, >10 GΩ or 10 MΩ ±1%) | 220 + 100 |
| 1 V (10 µV res) | 120 + 75 |
| 10 V (0.1 mV res) | 120 + 75 |
| 100 V (1 mV res, 10 MΩ ±1%) | 120 + 75 |
| 1000 V (10 mV res, 10 MΩ ±1%) | 120 + 75 |
| Digitize Current DC Accuracy (1 Year, TCAL ±5 °C) ±(ppm of reading + ppm of range) | |
| 10 µA (0.1 nA res, 15 mV burden) | 160 + 75 |
| 100 µA (1 nA res, 15 mV) | 160 + 75 |
| 1 mA (10 nA res, 15 mV) | 160 + 75 |
| 10 mA (100 nA res, 20 mV) | 160 + 75 |
| 100 mA (1 µA res, 200 mV) | 450 + 100 |
| 1 A (10 µA res, 400 mV) | 500 + 110 |
| 3 A (100 µA res, 1300 mV) | 900 + 150 |
| Digitizer Characteristics | |
| Maximum Resolution | 18 bits |
| Measurement Input Coupling | DC or AC (voltage only) |
| Sampling Rate | Programmable 1 k through 1 million |
| Volatile Sample Memory with Timestamp | 27.5 million |
| Minimum Record Time | 1 µs |
| Timestamp Resolution | 1 ns with standard or full buffer style; 1 µs with compact buffer style |
| Timestamp Accuracy | Standard or full buffer style: 20 ns between adjacent readings (total buffer time <2 s); compact buffer style: 2 µs adjacent readings |
| Maximum Record Length | 8 million |
| Digitize Typical (Sampling Rate / Digits / Resolution / Measurements Into Computer) | |
| 10 kS/s | 5½ digits, 18-bit resolution, 9700 readings/s |
| 20 kS/s | 4½ digits, 16-bit, 19000 readings/s |
| 50 kS/s | 4½ digits, 16-bit, 44400 readings/s |
| 100 kS/s | 4½ digits, 15-bit, 80000 readings/s |
| 1 MS/s | 3½ digits, 12-bit, 108000 readings/s |
| Buffer Transfer Speed, Binary (Measurements into Computer per second) | |
| USB / LAN, average for 1000 readings | 280000 (USB) / 270000 (LAN) |
| USB / LAN, average for 1000 readings with timestamp | 170000 (USB) / 140000 (LAN) |
| Triggering | |
| Time Base Accuracy | 25 ppm |
| Trigger Source | Analog DCV, DCI, or any system trigger |
| Trigger Coupling | DC |
Important: Input protection: 1010 V DC on all ranges and functions for the HI and LO terminals; 350 V for the sense HI and sense LO terminals; 250 V rated for the current input terminal.
Important: The DMM7512 does not have a front panel display; the instrument has a built-in web browser with a virtual front panel that is displayed on a PC monitor through a LAN interface connection.
Usage tip: pair the DMM7512 with the Keithley 2606B System SourceMeter SMU Instrument over TSP-Link to stimulate and measure multiple DUTs as a single integrated, script-controlled test system.
ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Keithley
Condition
Factory New
Manufacturer
Keithley
Multi_met_dcv
1000 V
Multi_met_dig
7½
Multi_met_type
Sampling Multimeter
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