ES-4447 Rev.2

20VS9-122D

Hybrid IC Isolation Amplifiers 20 Series

ISOLATION AMPLIFIER

(high-precision, space and cost saving, DIP type)
Functions & Features
• Isolator module for PWB mounting
• High-linearity (±0.012%)
• High speed response of 20 μsec.
• Isolating between input and output
• Isolation up to 2000 V AC
• Power supply ±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: 20VS9–122D[1]–UB

ORDERING INFORMATION

• Code number: 20VS9-122D[1]-UB
Specify a code from below for [1].
(e.g. 20VS9-122DJ-UB)

TYPE

122D
INPUT / OUTPUT VOLTAGE RANGE:
INPUT RANGE -10 – +10 V DC
OUTPUT RANGE -10 – +10 V DC

[1] LINEARITY

J: ±0.05 %
K: ±0.025 %
L: ±0.012 %

POWER INPUT

DC Power
UB: ±15 V DC

GENERAL SPECIFICATIONS

Construction: Hybrid IC
Housing material: Flame-resistant resin (black)
Isolation: Input to output

INPUT SPECIFICATIONS

DC Voltage
Input : -10 – +10 V DC
Input resistance: ≥ 200 kΩ (≥ 10 kΩ in power failure)
Overload input voltage: ±15 V DC continuous
Input offset voltage: ±30 mV
Input bias current: 45 nA TYP. (@25°C)

OUTPUT SPECIFICATIONS

DC Voltage: -10 – +10 V DC
Load resistance: ≥ 2 kΩ
Output impedance: ≤ 1Ω

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: 5 g (0.18 oz)

PERFORMANCE in percentage of span

Linearity
 ±0.05 % (20VS9-122DJ)
 ±0.025 % (20VS9-122DK)
 ±0.012 % (20VS9-122DL)
Temp. coefficient:
 ±50 ppm/°C (-25℃ - +85℃; -13 - +185°F)
Frequency characteristics: Approx. 18 Hz, -3 dB
Response time: ≤ 20 msec. (0 – 90 %)
Conversion gain: ×1 ±1 %
Line voltage effect: ±0.02 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @ 1 minute
(input to output)
CMRR: ≥ 100 dB (500 V AC  50/60 Hz)

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

APPLICATION EXAMPLE