ES-4430 Rev.1
20VS1C
Hybrid IC Isolation Amplifiers 20 Series
ISOLATION AMPLIFIER
(top adjustment, input isolation)
Functions & Features
• Being used for printed wiring board installation
• Isolating between input, output and power
• Isolation between input and output up to 2000 V AC
• Power 15V DC
Typical Applications
• Isolating the field and iput circuit of microprocessor to reduce noise from field
• Available for manufacturers of small-lot products to omit the development of isolation circuit
MODEL: 20VS1C-44-U
ORDERING INFORMATION
• Code number: 20VS1C-44-U
INPUT
Voltage
4
: 0 – 10 V DC (Input resistance 1 MΩ min.)
OUTPUT
Voltage
4
: 0 – 10 V DC (Load resistance 2 kΩ min.)
POWER INPUT
DC Power
U
: 15 V DC
GENERAL SPECIFICATIONS
Construction
: Hybrid IC
Housing material
: Flame-resistant resin (black)
Isolation
: Input or excitation to output or power supply
Zero adjustment
: -1 to +1 % (top)
Span adjustment
: 99 to 101 % (top)
INPUT SPECIFICATIONS
■
DC Voltage
Input
: 0 – 10 V DC
Input resistance
: ≥ 1 MΩ (10 kΩ in power failure)
Overload input voltage
: 30 V DC continuous
Input bias current
: 15 nA TYP. (@25°C)
OUTPUT SPECIFICATIONS
■
Voltage Output
Output range
: 0 – 10 V DC
Load resistance
: ≥ 2 kΩ
Output impedance
: ≤ 1 Ω
EXCITATION
Output voltage
: ±15 V DC ±5 % (when power supply is 15 V DC)
Load current
: ≤ 5 mA
INSTALLATION
Power input
•
DC
: Operational voltage range: Rating ±2 %; approx. 10 mA with no load; ripple 2 %p-p max.
Operating temperature
: 0 to 60°C (32 to 140°F)
Operating humidity
: 10 to 95 % RH (non-condensing)
Mounting
: Soldering to the printed wiring board
Weight
: 20 g (0.71 oz)
PERFORMANCE in percentage of span
Linearity
: ±0.05 %
Temp. coefficient
: 70 ppm/°C
Frequency characteristics
: Approx. 1 kHz, -3 dB
Response time
: ≤ 450 μsec. (0 – 90 %)
Gain adjustable range
: × 1 to × 10
Line voltage effect
: ±0.05 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @ 1 minute
(input or excitation to output or power supply)
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
APPLICATION EXAMPLE