Product specifications

Two, three, or four isolated outputs
are integrated into one package,
conserving rack space and GPIB
addresses. Most of the outputs
also provide dual ranges, for more
current at lower voltage levels.
The outputs can be connected in
parallel or series to further increase
the flexibility that these products
offer the system designer.
Programming is done using industry
standard SCPI commands. Test
system integration can be further
simplified by using the VXIPlug&Play
drivers. These power supplies
help reduce test time with fast
up and down programming, which
is enhanced by an active downpro-
grammer which can sink the full
rated current.
Application notes
10 Practical Tips You Need to
Know About Your Power Products
5965-8239E
10 Hints for Using Your Power Supply
to Decrease Test Time
5968-6359E
Understanding Linear
Power Supply Operation
(AN1554)
5989-2291EN
Modern Connectivity -
Using USB and LAN I/O Converters
(AN 1475-1)
5989-0123EN
High Performance DC Power Supplies speed and accuracy for test optimization
Spe cif icati ons
(at 0° to 55°C unless
otherwise specified)
40 W 40 W 80 W 80 W 105 W
output output output output output
More detailed specifications at www.agilent.com/find/6620
71
Up to four fully isolated power supplies in a 3U package
Dual-range outputs
Fast, low-noise outputs
Built-in measurements and advanced programmable features
Protection features to ensure DUT safety
6621A-6624A, 6627A
Multiple-Output
40 W-105 W GPIB
Output power Low-range volts, amps 0 to 7 V, 0 to 20 V, 0 to 7 V, 0 to 20 V, 0-35 V,
0 to 5 A 0 to 2 A 0 to 10 A 0 to 4 A 0-3 A
High range volts, amps 0 to 20 V, 0 to 50 V, 0 to 20 V, 0 to 50 V, —
0 to 2 A 0 to 0.8 A 0 to 4 A 0 to 2 A —
Output combinations
for each model
(total number of outputs) 6621A (2) — — 2 — —
6622A (2) — — — 2 —
6623A (3) 1 1 1 — —
6624A (4) 2 2 — — —
6627A (4) — 4 — — —
6623A-J03 (3) — 2 — — 1
Special order option
Programming accuracy Voltage 19 mV 50 mV 19 mV 50 mV 35 mV
+ 0.06% + 0.06% + 0.06% + 0.06% + 0.06%
Current 50 mA 20 mA 100 mA 40 mA 30 mA
+ 0.16% + 0.16% + 0.16% + 0.16% + 0.16%
Readback accuracy Voltage 20 mV 50 mV 20 mV 50 mV 35 mV
(at 25°C ±5°C) + 0.05% + 0.05% + 0.05% + 0.05% + 0.05%
+Current 10 mA 4 mA 20 mA 8 mA 6 mA
+ 0.1% + 0.1% + 0.1% + 0.1% + 0.1%
-Current 25 mA 8 mA 50 mA 20 mA 15 mA
+ 0.2% + 0.2% + 0.2% + 0.2% + 0.2%
Ripple and noise
(peak-to-peak, 20 Hz to 20 MHz;
rms, 20 Hz to 10 MHz)
Constant voltage rms 500 µV 500 µV 500 µV 500 µV 500 µV
peak-to-peak 3 mV 3 mV 3 mV 3 mV 3 mV
Constant current rms 1 mA 1 mA 1 mA 1 mA 1 mA
Load regulation Voltage 2 mV 2 mV 2 mV 2 mV 2 mV
Current 1 mA 0.5 mA 2 mA 1 mA 2 mA
Load cross regulation Voltage 1 mV 2.5 mV 1 mV 2.5 mV N/A
Current 1 mA 0.5 mA 2 mA 1 mA N/A
Line regulation Voltage 0.01% 0.01% 0.01% 0.01% 0.01%
+ 1 mV + 1 mV + 1 mV + 1 mV + 1 mV
Current 0.06% 0.06% 0.06% 0.06% 0.06%
+ 1 mA + 1 mA + 1 mA + 1 mA + 1 mA
Transient response time Less than 75 µs for the output to recover to within 75 mV of nominal value following
a load change within specfications