ES-4419 Rev.2
20VS5-170
Hybrid IC Isolation Amplifiers 20 Series
ISOLATION AMPLIFIER
(current output, output isolation)
Functions & Features
• Being used for printed wiring board installation
• High-linearity
• Low power consumption
• Small installation area in printed wiring board
• Isolation and 1500 V AC dielectric strength between input or power supply and output
• 12 V DC power supply
• Current output
Typical Applications
• Isolating the fiels and output circuit of microprocessor to reduce common mode noise
• Available for manufacturers of small-lot products to omit the development of isolation circuit
MODEL: 20VS5-170-S
ORDERING INFORMATION
• Code number: 20VS5-170-S
INPUT RANGE 0 – 5 V DC
OUTPUT RANGE 0 – 20 mA DC
POWER INPUT
DC Power
S
: 12 V DC
GENERAL SPECIFICATIONS
Construction
: Hybrid IC
Isolation
: Input or power to output
INPUT SPECIFICATIONS
■
DC Voltage
Input
: 0 – 5.5 V DC
Input resistance
: ≥ 1 MΩ (10 kΩ in power failure)
Overload input voltage
: 30 V DC continuous
Input offset voltage
: ±15 mV
Input bias current
: 2 nA TYP. (@25°C)
OUTPUT SPECIFICATIONS
■
DC Current
: 0 – 22 mA DC
Load resistance
: ≤ 750 Ω @ 12 V power input and 20 mA output
Output impedance
: ≥ 1 MΩ
INSTALLATION
Power input
•
DC
:
Operational voltage range: Rating ±10 %;
ripple 2 % p-p max.; approx. 60 mA @ 20 mA output
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
: 10 g (0.35 oz)
PERFORMANCE in percentage of span
Linearity
: ±0.05 % (at output 0 - 20 mA) @G = 1
Temp. coefficient
:
Offset drift 20 ppm/°C max. @G = 1
Span drift 100 ppm/°C max. @G = 1
Frequency characteristics
: Approx. 500 Hz, -3 dB
Response time
: ≤ 1 msec. (0 – 90 %)
Conversion gain
: ×1 ±10 % @ 250 Ω load
Gain adjustable range
: G = × 1 to × 10
Line voltage effect
: ±0.05 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
:
1500 V AC @ 1 minute (input or power to output)
CMRR
: ≥ 100 dB (500 V AC 50/60 Hz)
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
APPLICATION EXAMPLE
The total resistance of the resistors connected to the amplifier must be 20 kΩ minimum and 100 kΩ maximum.
(100 kΩ ≥ R
1
× R
2
÷ (R
1
+ R
2
) ≥ 20 kΩ)