A

Specifications

Introduction

Table A-1 lists the specifications of the dc source. Unless otherwise noted, specifications are warranted at 25°C ± 5°C after a 30-minute warm-up period. Sense terminals must be connected to their respective output terminals.

Table A-1. Specifications

Parameter

 

Voltage Priority

Current Priority

Output Ratings

 

Voltage:

-10.25V to +10.25V

-8V to +8V (min. with full resistive load)

(refer to derating

 

 

 

 

 

-11.25V to +11.25V (max. with no load)

characteristic)

 

Current:

- 0.5125A to +0.5125A

- 0.5125 mA to +0.5125 mA

Programming Accuracy

 

Voltage

0.1%±2mV

N/A

 

 

+ Current Limit:

0.1%±50∝A

N/A

 

 

- Current Limit:

0.1%±50∝A

N/A

 

 

Current:

N/A

0.1%±1∝A

Readback Accuracy1

 

Voltage:

0.1%±2mV (5 points)

0.1%±2mV (5 points)

 

 

0.5A Curr. Range:

0.1%±200∝A (5 points)

0.1%±200nA ( 1 PLC)

 

 

15mA Curr. Range:

0.1%±5∝A (5 points)

0.1%±200nA ( 1 PLC)

 

 

0.5mA Curr. Range:

0.1%±200nA (1 PLC)

0.1%±200nA ( 1 PLC)

Ripple and Noise

 

Voltage (rms)2:

0.380mV

N/A

(In the range of

 

Voltage (p-p)2:

4mV

N/A

20 Hz to 20 MHz )

±

3

40

N/A

 

Current Limit (rms) :

 

A

 

 

Current (rms)4:

N/A

1.5∝A

Load Effect

 

Voltage:

±400∝V

N/A

(Change from no load to full

 

+ Current Limit:

±

 

N/A

load or full load to no load

 

30

A

 

- Current Limit:

±30∝A

N/A

by varying a resistive load)

 

Current:

N/A

±25nA

 

 

Source Effect

 

Voltage:

±200∝V

N/A

(change in output voltage or

 

+ Current Limit:

±

 

N/A

current for any line change

 

10

A

 

- Current Limit:

±10∝A

N/A

within ratings)

 

Current:

N/A

±10nA

 

 

Output Transient

Voltage (@ 10kHz)5:

60∝s

N/A

Response

 

(@ 20kHz):

45

N/A

 

 

s

 

 

(@ 30kHz):

35∝s

N/A

 

 

Current6:

N/A

90∝s

1Voltage accuracy specification in voltage priority mode guaranteed between –10.25V to +10.25V. 0.5A current range accuracy specification in voltage priority mode guaranteed between –0.5125A and +0.5125A. Readback for Voltage, 0.5A, and 15mA current ranges is based on capturing 5 data points at intervals of 30.4∝s and averaging the readings. Readback for 0.5mA current range is based on averaging the readings over 1 power line cycle (60 Hz = 548 points @ 30.4∝s). The default setting for all readback ranges is the average of 5 data points 30.4∝s apart.

2Program Vset to ±10V using a 20 ohm load resistor.

3Program current to +500mA using a 20 ohm load resistor. Program Vset to ±10.25V.

4Program current to ±0.5mA using a 16K ohm load resistor.

5Measured with a 10uF output capacitor with 0.2 ohm ESR across the output with the current limit set to +0.5125A. The load current rise time is approximately 10us for a current change of 0.25Ato 0.5A or 0.5A to 0.25A. Measure the output voltage recovery time to within 40mV of its final value.

6Measured following a voltage change of –1V to +1V or +1V to –1V with approximately 25us time constant with the current priority current level set to 0uA. Measure the output current recovery time to within ±1mA of its final value.

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Agilent Technologies N3280A manual Table A-1. Specifications