A Greater Measure of Confidence

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6482

Dual-Channel Picoammeter/

Voltage Source

sPECIfICaTIoN CoNDITIoNs

This document contains specifications and supplemental information for the Model 6482 Dual-Channel Picoammeter/Voltage Source

instrument . Specifications are the standards against which the Model 6482 is tested . Upon leaving the factory, the Model 6482 meets

these specifications . Supplemental and typical values are nonwarranted, apply at 23°C, and are provided solely as useful information .

The Model 6482 provides two independent picoammeter/voltage source channels for a wide range of measurement applications. The

Model 6482 includes an analog output jack on the rear panel for each channel .

Source and measurement accuracies are specified at the Model 6482 terminals under these conditions:

1. 23° ± 5°C, <70 percent relative humidity.

2 . After a one-hour warm-up period .

3. Speed normal (1 NPLC).

4. A/D autozero enabled .

5. Properly zeroed operation .

6 . Calibration period: One year.

range

Maximum

resolution

23° ±5°C

±(% rdg + offset)

Temperature Coefficient

0°–18°C & 28°–50°C

±(%rdg + offset)/°C

DC Input

(maximum)

2 .000000 nA

1 fA

1.00% + 2 pA

0.01 + 200 fA

20 k

W

20.00000 nA

10 fA

0.40% + 2 pA

0.01 + 200 fA

20 k

W

200.0000 nA

100 fA

0.30% + 200 pA

0.02 + 20 pA

200

W

2 .000000 µA

1 pA

0.20% + 200 pA

0.02 + 20 pA

200

W

20.00000 µA

10 pA

0.10% + 20 nA

0.01 + 2 nA

2 .0

W

200.0000 µA

100 pA

0.10% + 20 nA

0.01 + 2 nA

2 .0

W

2 .000000 mA

1 nA

0.10% + 2 µA

0.02 + 200 nA

0.2

W

20.00000 mA

10 nA

0.10% + 2 µA

0.02 + 200 nA

0.2

W

VolTaGE bIas sPECIfICaTIoNs

range

resolution

accuracy

23°C ±5°C

Maximum

Current

Temperature

Coefficient

±10 V

<400 µV

±(0.15% of setting + 5 mV)

20 mA

< 0.30%, 0 to 20 mA

150 ppm/°C

±30 V

<4 mV

±(0.3% of setting + 50 mV)

20 mA

< 0.30%, 0 to 20 mA

300 ppm/°C

aNaloG ouTPuT sPECIfICaTIoNs

OUTPUT IMPEDANCE: 1k

W typical.

range

accuracy

23°C ±5°C

±(% rdg. + offset)

Temperature Coefficient

0°–18°C & 28°–50°C

±(%rdg. + offset)/°C

Typical rise Time

(10% to 90%)

2 .000000 nA

6 .0% + 90 mV

0.30% + 7 mV

6 .1 ms

20.00000 nA

3.0% + 9 mV

0.11% + 700 µV

6 .1 ms

200.0000 nA

6 .0% + 90 mV

0.30% + 4 mV

395 µs

2 .000000 µA

3.0% + 9 mV

0.11% + 400 µV

395 µs

20.00000 µA

6 .0% + 90 mV

0.30% + 4 mV

135 µs

200.0000 µA

2 .5% + 9 mV

0.11% + 400 µV

135 µs

2 .000000 mA

6 .0% + 90 mV

0.30% + 4 mV

21 µs

20.00000 mA

2 .5% + 9 mV

0.11% + 400 µV

21 µs

TYPICal NoIsE floor MEasurEMENT sPECIfICaTIoNs

range

Typical Noise floor

rMs (1 sTDEV), 100 samples

0.01 NPlC

0.1 NPlC

1.0 NPlC

10 NPlC

2 .000000 nA

2 .5 pA

1.5 pA

45 fA

15 fA

20.00000 nA

2 .5 pA

1.5 pA

45 fA

15 fA

200.0000 nA

200 pA

120 pA

2 pA

500 fA

2 .000000 µA

200 pA

120 pA

2 pA

500 fA

20.00000 µA

20 nA

12 nA

200 pA

50 pA

200.0000 µA

20 nA

12 nA

200 pA

50 pA

2 .000000 mA

2 µA

1.5 µA

25 nA

5 nA

20.00000 mA

2 µA

1.5 µA

25 nA

5 nA

TYPICal sPEED aND NoIsE rEJECTIoN

Digits

readings per second

NPlC NMrr

GPIb

(sCPI)

GPIb

(488.1)

4½

700

900

0.01

—

5½

60

475

0.1

—

6½

58

58

1

60 dB

GENEral

SOURCE CAPACITANCE: Stable to 10.0nF (typical).

VOLTAGE SOURCE SLEW RATE: 3.0ms/V (typical).

COMMON MODE VOLTAGE: 200VDC .

W in parallel

with 150nF.

OVERRANGE: 105% of measurement range.

MEMORy BUFFER: 6000 readings (two 3000 point buf-

fers). Includes selected measured value(s) and time

stamp.

PROGRAMMABILITy: IEEE-488 .2, RS-232, five user-defin-

able power-up states plus factory default and *RST.

OUTPUT ENABLE CONNECTOR:

Output Enable: Active low input .

Input line: SOT (start of test) trigger input .

POWER SUPPLy: 100V, 120V, 220V, 240V (±10%), 50Hz or

60Hz, 50VA maximum .

WARRANTy: 1 year.

EMC: Conforms to European Union EMC Directive.

VIBRATION: MIL-T-28800F random class 3.

SAFETy: Conforms to European Union Low Voltage

Directive.

WARM-UP: 1 hour to rated accuracy.

DIMENSIONS:

Rack Mount: 89mm high × 213mm wide × 370mm

deep (3.5 in . × 8 .4 in . × 14.6 in .).

Bench Configuration (with handle and feet): 104mm

high × 238mm wide × 370mm deep (4.1 in . × 9.4 in .

× 14.6 in .).

WEIGHT: 23.1kg (10.5 lb.).

ENVIRONMENT: For indoor use only.

Altitude: Maximum 2000m (6562 ft .) above sea level .

Operating: 0° to 50°C, 70 % relative humidity up to

35°C . Derate 3% relative humidity/°C, 35° to 50°C .

Storage: –25° to 65°C .

NoTEs

1. Speed = Normal (1.0 NPLC), filter on .

2 . One year.

3. Measured as DVin/

∆Iin at full scale (and zero) input currents.

4 . Measured as DVin/

∆Iin at full scale (20mA) and zero load currents.

5. Specification by design .

6 . Measured (at input triaxial connector) as DVin at full scale (20mA)

versus zero input currents .