ES-4444 Rev.1

20VS8-202N

Hybrid IC Isolation Amplifiers 20 Series

ISOLATION AMPLIFIER

(small size, input isolation, DIP type)
Functions & Features
• Being used for printed wiring board installation
• High-linearity
• High speed response of 150 μsec.
• Isolating between input and output or power
• Isolation between input and output or power supply up to 3000 V AC
• 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: 20VS8–202N[1]–U

ORDERING INFORMATION

• Code number: 20VS8-202N[1]-U
Specify a code from below for [1]. 
  (e.g. 20VS8-202NL-U)

TYPE

202N: Input isolation
  INPUT RANGE -5 – +5 V DC
  OUTPUT RANGE -5 – +5 V DC

[1] LINEARITY

J: ±0.05 %
K: ±0.025 %
L: ±0.012 %

POWER INPUT

DC Power
U: 15 V DC

GENERAL SPECIFICATIONS

Construction: Hybrid IC
Housing material: Flame-resistant resin (black)
Isolation: Input or reference voltage source to output or power supply

INPUT SPECIFICATIONS

■ DC Voltage
Input : -5 – +5 V DC
Input resistance: ≥ 1 MΩ  (10 kΩ in power failure)
Overload input voltage: ±15 V DC continuous
Input offset voltage: ±2 mV @ G = 1
Input bias current: 25 pA TYP. (@25°C)

OUTPUT SPECIFICATIONS

■ DC Voltage: -5 – +5 V DC
Load resistance: ≥ 1 MΩ
Output impedance: ≤ 5 kΩ

REFERENCE VOLTAGE SOURCE

■ FOR INPUT
Output voltage: ±8.5 V DC ±1 V (@ 15 V DC power supply ) 
Load current: ≤ 1 mA

INSTALLATION

Power input
•DC: Rating ±5 %; approx. 7.5 mA with no load
Operating temperature: -25 to +85°C (-13 to +185°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Soldering to the printed wiring board
Weight: 13 g (0.46 oz)

PERFORMANCE in percentage of span

Unless otherwise specified, G = 1.
Linearity: 
 ±0.05 % (20VS8-202NJ)
 ±0.025 % (20VS8-202NK)
 ±0.012 % (20VS8-202NL)
Temp. coefficient:
 ±25 ppm/°C (0℃ - 70℃; 32 - 158°F)
 ±50 ppm/°C (-25℃ - +85℃; -13 - +185°F)
Frequency characteristics: Approx. 2 kHz, -3 dB
Response time: ≤ 150 μsec. (0 – 90 %)
Conversion gain: ×1 ±1.5 %
Gain adjustable range: × 1 to × 100
Line voltage effect: ±0.02 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 3000 V AC @ 1 minute
(input or reference voltage source to output or power supply)
CMRR: ≥ 120 dB (500 V AC  50/60 Hz)

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

APPLICATION EXAMPLE

10 kΩ ≤ (R1 + R2) ≤ 200 kΩ