Miniature Isolation Amplifiers 20 Series

20 Series

Isolation amplifiers provide signal and power isolation for data acquisition components to protect them from noises present at remote devices.

  Also useful to:
  • Amplify low-level signals in multi-channel applications
  • Eliminate measurement errors by ground loops
  • Reduce circuit costs
M-System offers a complete range of isolation amplifiers featuring:
・Input isolation (two-port) ・Output isolation (two-port) ・Three-port isolation ・Low-level mV signal input
・DC current output ・High isolation voltage ・Wide bandwidth ・High gain

20VS1A 20VS2-x 20VS2-0x 20VS3 20VS4-384
20VS5-100, 150, 140 20VS5-170 20VS5-200 20VS5-500 20VS8-210 20VF-x

2-port Isolation

■ Input Isolation
Model Features Input Output Response Time
(0 – 90 %)
Freq.
Characteristics
Power
Input
Dimensions
mm (inch)
20VF-1 Ultra-high speed response -10 – +10V DC -10 – +10V DC ≤ 80 μsec. Approx. 5 kHz, -3 dB 15V DC W49 × H14.5 × D18
(1.93” × 0.57” × 0.71”)
20VS2-1 Built in surge protectors -10 – +10V DC -10 – +10V DC ≤ 450 μsec. Approx. 1 kHz, -3 dB 15V DC W49 × H14.5 × D18
(1.93” × 0.57” × 0.71”)
20VS2-3 Narrow span -10 – +100mV DC 0 – 10V DC ≤ 200 msec. Approx. 2 Hz, -3 dB 15V DC W49 × H14.5 × D18
(1.93” × 0.57” × 0.71”)
0 – 5V DC ≤ 450 μsec. Approx. 1 kHz, -3 dB
20VS4-384 Up to 5 kV input isolation -5 – +5 V DC -5 – +5 V DC ≤ 450 μsec. 1 kHz, -3 dB 15V DC W38 × H15.2 × D38
(1.50” × 0.60” × 1.50”)
20VS5-150 • Small installation area in
printed wiring board
• Gain adjustable range,
× 1 to × 100
@ 15 V power ≤ 90 μsec. Approx. 5 kHz, -3 dB 15V DC W53 × H24 × D18
(2.09” × 0.94” × 0.71”)
-7 – +7 V DC -7 – +7 V DC
@ 11.5 V power
-5 – +5 V DC -5 – +5 V DC
20VS5-200 Ultra-high speed response -5 – +5 V DC -5 – +5 V DC ≤ 10 μsec. Approx. 50 kHz, -3 dB 15V DC W48 × H15 × D9.5
(1.89” × 0.59” × 0.37”)
20VS5-500 Up to 5 kV input isolation -5 – +5 V DC -5 – +5 V DC ≤ 90 μsec. 5 kHz, -3 dB TYP 15V DC W38 × H15.2 × D38
(1.50” × 0.60” × 1.50”)
■ Output Isolation
Model Features Input Output Response Time
(0 – 90 %)
Freq.
Characteristics
Power
Input
Dimensions
mm (inch)
20VF-2 Ultra-high speed response -10 – +10V DC -10 – +10V DC ≤ 80 μsec. Approx. 5 kHz, -3 dB 15V DC W49 × H14.5 × D18
(1.93” × 0.57” × 0.71”)
20VS2-2 Built in surge protectors -10 – +10V DC -10 – +10V DC ≤ 450 μsec. Approx. 1 kHz, -3 dB 15V DC W49 × H14.5 × D18
(1.93” × 0.57” × 0.71”)
20VS2-4 Voltage and current output 0 – 5V DC 0 – 20mA DC ≤ 2 msec. Approx. 200 Hz, -3 dB 15V DC W49 × H14.5 × D18
(1.93” × 0.57” × 0.71”)
0 – 10V DC
20VS5-140 Small installation area in
printed wiring board
@ 15 V power ≤ 90 μsec. Approx. 5 kHz, -3 dB 15V DC W53 × H24 × D18
(2.09” × 0.94” × 0.71”)
-7 – +7 V DC -7 – +7 V DC
@ 11.5 V power
-5 – +5 V DC -5 – +5 V DC
20VS5-170 Current output 0 – 5 V DC 0 – 20 mA DC ≤ 1 msec. Approx. 500 Hz, -3 dB 12V DC W44 × H10.5 × D18
(1.73” × 0.41” × 0.71”)
■ Bidirectional Isolation
Model Features Input Output Response Time
(0 – 90 %)
Freq.
Characteristics
Power
Input
Dimensions
mm (inch)
20VS5-100 • Small installation area in
printed wiring board
• Bidirectional amplifier
@ 15 V power ≤ 90 μsec. Approx. 5 kHz, -3 dB 15V DC W53 × H24 × D18
(2.09” × 0.94” × 0.71”)
-7 – +7 V DC -7 – +7 V DC
@ 11.5 V power
-5 – +5 V DC -5 – +5 V DC

3-port Isolation

Model Features Input Output Response Time
(0 – 90 %)
Freq.
Characteristics
Power
Input
Dimensions
mm (inch)
20VS1A High speed response -10 – +10V DC -10 – +10V DC ≤ 50 μsec. Approx. 20 kHz, -3 dB 15V DC W53.3 × H26 × D11.3
(2.1” × 1.02” × 0.44”)
20VS2-01 High-linearity -5 – +5V DC -5 – +5V DC ≤ 390 μsec. Approx. 1 kHz, -3 dB 15V DC W33 × H8 × D19
(1.30” × 0.31” × 0.75”)
20VS2-02 High-linearity 0 – 5V DC 0 – 5V DC ≤ 390 μsec. Approx. 1 kHz, -3 dB 15V DC W33 × H8 × D19
(1.30” × 0.31” × 0.75”)
20VS3 Saving installation space -5 – +5V DC -5 – +5V DC ≤ 450 μsec. Approx. 1 kHz, -3 dB 15V DC W33 × H19 × D8
(1.30” × 0.75” × 0.31”)
20VS8-210 High speed response -10 – +10 V DC -10 – +10V DC ≤ 50 μsec. Approx. 20 kHz, -3 dB 15V DC W53.3 × H9.8 × D25.4
(2.1” × 0.39” × 1”)
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