MODEL: 20VS5-251
Input resistance: ≥ 1 MΩ (≥ 10 kΩ in power failure)
Overload input voltage: 30 V DC continuous
Input offset voltage: ±15 mV
Hybrid IC Isolation Amplifiers 20 Series
ISOLATION AMPLIFIER
(high-accuracy, input isolation)
Functions & Features
Input bias current: 0.5 nA TYP. (@25°C)
OUTPUT SPECIFICATIONS
■ DC Voltage: -10 – +10 V DC
Load resistance: ≥ 5 kΩ
• Being used for printed wiring board installation
• Up to 1000 V isolation between input to output or power
input
Output impedance: ≤ 1 Ω
• High-linearity
• Small installation area in printed wiring board
• Gain adjustable range, × 1 to × 10
• Power 15 V DC
REFERENCE VOLTAGE SOURCE
Output voltage: ±15 V DC TYP.
Load current: ≤ 1 mA
Typical Applications
• Isolating the field and input circuit of microprocessor to
reduce noise from field
INSTALLATION
Power input
• Available for manufacturers of small-lot products to omit
the development of isolation circuit
•DC: Operational voltage range: Rating ±5 %, ripple 2 %p-p
max.; ≤ 12 mA with no load
Operating temperature: 0 to 70°C (32 to 158°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Soldering to the printed wiring board
Weight: 10g (0.35 oz)
10.0 (.39)
18.5 (.73)
47.5 (1.87)
mm (inch)
PERFORMANCE in percentage of span
Unless otherwise specified, G = 1.
Linearity: ±0.05 %
Temp. coefficient: 50 ppm/°C (28 ppm/°F)
Frequency characteristics: Approx. 3 kHz, -3 dB
Response time: ≤ 150 μsec. (0 – 90 %)
Conversion gain: ×0.98 ±2 %
MODEL: 20VS5251–U
Gain adjustable range: × 1 to × 10
Line voltage effect: ±0.05 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1000 V AC @ 1 minute
(input or reference voltage source to output or power
supply)
ORDERING INFORMATION
• Code number: 20VS5-251-U
INPUT RANGE -10 – +10 V DC
OUTPUT RANGE -10 – +10 V DC
CMRR: ≥ 100 dB (500 V AC 50/60 Hz)
POWER INPUT
DC Power
U: 15 V DC
GENERAL SPECIFICATIONS
Construction: Hybrid IC
Isolation: Input or reference voltage source to output or
power supply
INPUT SPECIFICATIONS
■ DC Voltage
Input : -10 – +10 V DC
http://www.m-system.co.jp/
20VS5-251 SPECIFICATIONS
ES-4434 Rev.0 Page 1/4