MODEL: 20VS5Hybrid IC Isolation Amplifiers 20 Series
ISOLATION AMPLIFIER(ultra-high speed response, input isolation)
Functions & Features• Being used for printed wiring board installation• Response time 10 μs• Isolation between input to output or power supplyup to 1500 V AC
• Power 15V DC
Typical Applications• Isolating the field and iput circuit of microprocessor toreduce noise from field• Available for manufacturers of small-lot products to omit
the development of isolation circuitInput offset voltage: ±129 mV (15 mV TYP.)
Input bias current: 100 pA TYP. (@25°C)

OUTPUT SPECIFICATIONS■ DC Voltage: -5 – +5 V DC
Load resistance: ≥ 2 kΩOutput impedance: ≤ 1 Ω

REFERENCE VOLTAGE SOURCE
Output voltage:±14 V DC TYP. (+15 V power supply)±10 V DC TYP. (+11.5 V power supply)
Load current: ≤ 2 mA

INSTALLATIONPower input•DC:
Operational voltage range 11.5 – 16 V;
ripple 2 %p-p max.; approx. 40 mA with no load
Operating temperature: -10 to +70°C (14 to 158°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Soldering to the printed wiring board
Weight: 8 g (0.28 oz)

10.5 (.41)

15 (.59)

49 (1.93)

mm (inch)

PERFORMANCE in percentage of span
Linearity: ±0.5 % @ G = 1
Temp. coefficient:
Offset drift 50 ppm/°C
Span drift 200 ppm/°C
Frequency characteristics: Approx. 50 kHz, -3 dB
Response time: ≤ 10 µsec. (0 – 90 %)Conversion gain: ×1 ±8 % max.
Gain adjustable range: × 1 to × 10
Ripple: ±7 %p-p max. (G = 1)
Line voltage effect: ±0.5 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @1 minute (input orreference voltage source to output or power)
CMRR: ≥ 100 dB (500 V AC 50/60 Hz)

MODEL: 20VS5–200–U
ORDERING INFORMATION• Code number: 20VS5-200-U
INPUT RANGE -5 – +5 V DC
OUTPUT RANGE -5 – +5 V DC

POWER INPUTDC Power
U: 15 V DC

GENERAL SPECIFICATIONS
Construction: Hybrid IC
Housing material: Epoxy resin
Isolation: Input or reference voltage source to output orpower supply

INPUT SPECIFICATIONS■ DC Voltage
Input : -5 – +5 V DCInput resistance: ≥ 1 MΩ (10 kΩ in power failure)
Overload input voltage: 30 V DC continuous
20VS5 SPECIFICATIONS

MG CO., LTD.
www.mgco.jpES-4414 Rev.4 Page 1/4

MODEL: 20VS5EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
15 (.59)

10.5 (.41)

PIN ASSIGNMENT

17161514REFERENCE VOLTAGE SOURCE (–)
REFERENCE VOLTAGE SOURCE (+)
COM (–)
NON-INVERTING INPUT
INVERTING INPUTFEEDBACK

65432120.32 (.8)
12.7 (.5)(BOTTOM VIEW)(.2)

52.54 (.1)

.5 (.02)49 (1.93)

2.54 (.1)

7.62(.3)

OUTPUT (+)
OUTPUT (–)
POWER SUPPLY (–)
POWER SUPPLY (+)

6.5(.26)SCHEMATIC CIRCUITRY & CONNECTION DIAGRAMFEEDBACK 1
INVERTING INPUT 2
INPUTNON-INVERTING INPUT 3Isolation
OutputDriver

Amplifier

17 +OUTPUT416 –(+) 514 +(–) 615 –COM (–)

POWER SUPPLYREFERENCE VOLTAGE SOURCE

Note. The reference voltage source is common to the COM (–)

APPLICATION EXAMPLE
The total resistance of the resistors connected to the amplifier must be max. 20 kΩ.
■ Non-inverting amplifier circuit: Basic example of G = 1

1–+2–3++17 +OUTPUT ±5V DC

INPUT ±5V DC–416 –+ 514 +– 615 –

POWER 15 V DC

REFERENCE VOLTAGE SOURCE

Non-inverting circuit G = 1

20VS5 SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-4414 Rev.4 Page 2/4

MODEL: 20VS5■ Inverting amplifier circuit: Basic example of G = -1 (output inverted to the input)

R1

R1+1–
2–

3+

INPUT ±5V DC–17 ++OUTPUT ±5V DC

416 –+ 514 +– 615 –

POWER 15 V DC

REFERENCE VOLTAGE SOURCE

Inverting circuit G = -1

■ Non-inverting amplifier circuit: Example of G = 1 + R1 / R2R2R11–+2–3+17 ++OUTPUT Vo

INPUT VIN

–416 –+ 514 +– 615 –POWER 15 V DC

REFERENCE VOLTAGE SOURCE

Non-inverting amplifier circuit G = 1 + R1 / R2

■ Inverting amplifier circuit: Example of G = -R1 / R2 (output inverted to the input)

R2

R1+1–2–3+

INPUT VIN

17 ++OUTPUT Vo

416 –+ 514 +– 615 ––POWER 15 V DC

REFERENCE VOLTAGE SOURCE

Inverting amplifier circuit G = -R1 / R2

■ Non-inverting amplifier circuit with external adjustments: Example of G = 210kΩ(SPAN)
10kΩ

9kΩ
2kΩ

+INPUT ±2.5V DC
200Ω

–30kΩ

50kΩ
(ZERO)

1–
2–

3++17 +OUTPUT ±5V DC

416 –

5 + REFERENCE

14 +VOLTAGE
6 – SOURCE

15 –POWER 15 V DC

Non-inverting amplifier circuit zero/span adjustments (input ±2.5V, output ±5V)

20VS5 SPECIFICATIONS

MG CO., LTD.
www.mgco.jpES-4414 Rev.4 Page 3/4

MODEL: 20VS5■ Inverting amplifier's circuit with external adjustments: Example of G = -1 (output inverted to the input)
10kΩ(SPAN)
10kΩ

9kΩ

+

12kΩ

–2–3+

INPUT ±5V DC–

100kΩ(ZERO)

200Ω
30kΩ

17 ++

OUTPUT ±5V DC

416 –

5 + REFERENCE

14 +VOLTAGE
6 – SOURCE

15 –POWER 15 V DC

Inverting amplifier circuit zero/span adjustments (input ±5V, output ±5V)

■ Non-inverting amplifier circuit: Example of ±10V DC output (±10V DC to the input ±5V DC)+15V
12+3–4–––17+++R3+–15V

OUTPUT ±10 V DC

INPUT ±5V DC
16R3–+ 514 +REFERENCE VOLTAGE SOURCE– 6POWER 15 V DC
15 –Non-inverting circuit G = 1+ R3 / R3 = 2■ Inverting amplifier circuit: Example of ±10V DC output (output inverted to the input)
+15V
㪩㪈

㪩㪈

+1㪉㪊
INPUT ±5V DC––––

17++R3++–15V

㪋16OUTPUT ±10 V DC
R3–+ 514 +REFERENCE VOLTAGE SOURCE– 6POWER 15 V DC
15 –Inverting circuit G = -(1+ R3 / R3) = -2

Specifications are subject to change without notice.

20VS5 SPECIFICATIONS

MG CO., LTD.
www.mgco.jp

ES-4414 Rev.4 Page 4/4