ES-4433 Rev.1
20VS1F
Hybrid IC Isolation Amplifiers 20 Series
ISOLATION AMPLIFIER
(4 channels, input isolation)
Functions & Features
• Being used for printed wiring board installation
• Up to 2000 V isolation between input to output or power input
•Isolation on 4 input channels
• Small installation area in printed wiring board
• Gain adjustable range, × 1 to × 100
• Power 15 V DC
Typical Applications
• Galvanically isolating the I/O circuits of microprocessor from the field side to reduce external noise
• Enabling electronic manufacturers to save efforts and cost for the development of isolation circuits for small-lot products
MODEL: 20VS1F–4W4W–U
ORDERING INFORMATION
• Code number: 20VS1F-4W4W-U
I/O
4W4W
:
INPUT RANGE ±10 V DC
OUTPUT RANGE ±10 V DC
POWER INPUT
DC Power
U
: 15 V DC
GENERAL SPECIFICATIONS
Construction
: Hybrid IC
PWB coating
: Silicone
Isolation
: Input to output or power input, between inputs
INPUT SPECIFICATIONS
■
DC Voltage
Input
: -10 – +10 V DC
Input resistance
: ≥ 1 MΩ (10 kΩ in power failure)
Overload input voltage
: ±30 V DC continuous
Input offset voltage
: ±20 mV
Input bias current
: 0.5 nA TYP. (@25°C)
OUTPUT SPECIFICATIONS
■
DC Voltage
: -10 – +10 V DC
Load resistance
: ≥ 10 kΩ
Output impedance
: ≤ 1 Ω
INSTALLATION
Power input
•
DC
: Operational voltage range: Rating ±10 %,
ripple 2 %p-p max.; approx. 20 mA with no load
Operating temperature
: -20 to +70°C (-4 to +158°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Soldering to the printed wiring board
Weight
: 30 g (1.1 oz)
PERFORMANCE in percentage of span
Unless otherwise specified, G = 1.
Linearity
: ±0.05 %
Temp. coefficient
: 50 ppm/°C (28 ppm/°F)
Frequency characteristics
: Approx. 10 kHz, -3 dB
Response time
: ≤ 60 µsec. (0 – 90 %)
Conversion gain
: ×1 ±5 %
Gain adjustable range
: × 1 to × 100
Line voltage effect
: ±0.05 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @ 1 minute
(input to output or power)
1000 V AC @ 1 minute (between inputs)
CMRR
: ≥ 100 dB (500 V AC 50/60 Hz)
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
APPLICATION EXAMPLE
The resistance of R
1
must be between 1 kΩ and 200 kΩ.