Introduction
and
Specifications
Detailed Specifications
1
1-11
DC Current
Range
Absolute Uncertainty, tcal
±
5
°
C
±
(% of
μ
A)
Resolution
Max Compliance
Voltage V
Max Inductive
Load mH
90 Day
1 Year
0 to 329.999
μ
A
0.012 + 0.02
0.015 + 0.02
1 nA
10
400
0 to 3.29999 mA
0.010 + 0.05
0.010 + 0.05
0.01
μ
A
10
0 to 32.9999 mA
0.008 + 0.25
0.010 + 0.25
0.1
μ
A
7
0 to 329.999 mA
0.008 + 3.3
0.010 + 2.5
1
μ
A
7
0 to 1.09999 A
0.023 + 44
0.038 + 44
10
μ
A
6
1.1 to 2.99999 A
0.030 + 44
0.038 + 44
10
μ
A
6
0 to 10.9999 A
(20 A Range)
0.038 + 500
0.060 + 500
100
μ
A
4
11 to 20.5 A
[1]
0.080 + 750
[2]
0.10 + 750
[2]
100
μ
A
4
[1]
Duty Cycle: Currents <11 A may be provided continuously. For currents >11 A, see Figure 1-3. The current may be provided
Formula 60-T-I minutes any 60 minute period where T is the temperature in
°
C (room temperature is about 23
°
C) and I is the
output current in amperes. For example, 17 A, at 23
°
C could be provided for 60-23-17 = 20 minutes each hour. When the 5502A
is outputting currents between 5 and 11 amps for long periods, the internal self-heating reduces the duty cycle. Under those
conditions, the allowable "on" time indicated by the formula and Figure 1-3 is achieved only after the 5502A is outputting currents
<5 A for the "off" period first.
[2]
Floor specification is 1500
μ
A within 30 seconds of selecting operate. For operating times >30 seconds, the floor specification is
750
μ
A.
Range
Noise
Bandwidth 0.1 Hz to 10 Hz p-p
Bandwidth 10 Hz to 10 kHz rms
0 to 329.999
μ
A
2 nA
20 nA
0 to 3.29999 mA
20 nA
200 nA
0 to 32.9999 mA
200 nA
2.0
μ
A
0 to 329.999 mA
2000 nA
20
μ
A
0 to 2.99999 A
20
μ
A
1 mA
0 to 20.5 A
200
μ
A
10 mA
Ambient
0
°
C
20
°
C
10
°
C
30
°
C
40
°
C
Current (Amps)
Minutes per Hour
Duty Cycle (%)
0%
10%
20%
30%
40%
60%
70%
80%
50%
5
10
15
20
25
30
35
40
45
50
0
11
12
13
14
15
16
17
18
19
20
Figure 1-3. Allowable Duration of Current >11 A
Summary of Contents for 5502A
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