Datasheet

Page 20
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Noise performance for DC voltage, DC current, and resistance (34465A and 34470A)
Integration time Digits
1
Readings/s RMS noise adder (% of range + fixed base)
2
34465/34470 DC volts Ohms DC current
3
100 PLC/1.67 s (2 s) 6½ / 7½ 0.06 (0.5) 0 0 0
10 PLC/167 ms (200 ms) 6½ / 7½ 6 (5) 0 0 0
1 PLC/16.7 ms (20 ms) 6½ / 7 60/50 0.0001 + 0.5 µV 0.0001 + 0.5 mΩ 0.0006 + 0 .01 nA
0.2 PLC/3 ms (3 ms) 6½ / 6½ 333 0.0005 + 3 µV 0.0010 +10 mΩ 0.0050 + 5 nA
0.06 PLC/1 ms (1 ms) 6/6 1,000 0.0020 + 3 µV 0.0020 + 10 mΩ 0.0070 + 10 nA
0.02 PLC/300 µs (300 µs) 6/6 3,333 0.0020 + 3 µV 0.0020 + 10 mΩ 0.0070 + 10 nA
0.006 PLC/100 µs (100 µs) 5/5 10,000 0.0050 + 4 µV 0.0050 + 10 mΩ 0.0100 +15 nA
0.002 PLC/40 µs (40 µs) 5/5 25,000 0.0050 + 4 µV 0.0050 + 10 mΩ 0.0100 +15 nA
0.0.001 PLC/20 us (20 µs)
4
4½ / 4½ 50,000 0.0100 + 4 µV 0.0150 + 10 mΩ 0.0150 + 30 nA
1. For DCV on the 10 V range with zero volts input and auto zero on.
2. RMS noise adder for both the 34465 and the 34470. Measured with zero volts input and auto zero on.
3. The following DCI ranges have these additional multipliers: The 10 mA by 5x, the 100 mA by 2x, and the 10 A by 1.6x.
4. Actual integration time is 19.953 µs.
Operating Characteristics (Continued)
(for all models except where noted)