Manufacturers
M-SYSTEMS 20VS1B
Description
M-Systems 20VS1B Hybrid Isolation Amplifiers 20 Series; Isolation Amplifier (input isolation)
Part Number
20VS1B
Price
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Manufacturer
M-SYSTEMS
Lead Time
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Category
Signal Conditioning
Specifications
CMRR
Greater than or equal to 100 dB (500 V AC 50/60 Hz)
Construction
Hybrid IC
Conversion gain
×0.95 ±5 %
DC Power input Operational voltage range 11.5 – 16 V; ripple 2 %p-p max.; a
Installation
Dielectric strength
2300 V AC @1 minute (input or reference voltage source to output or power)
Frequency characteristics
1 kHz, 3 dB
Gain adjustable range
× 1 to × 10
Insulation resistance
Greater than or equal to 100 M Omega with 500 V DC
Isolation
Input to output or power
Line voltage effect
±0.2 % over voltage range
Linearity
±0.05 %
Mounting
Soldering to the printed wiring board
Operating humidity
30 to 90 %RH (non-condensing)
Operating temperature
-10 to +70°C (14 to 158°F)
Response time
Less than or equal to 450 microsec
Temp. coefficient
Offset drift 50 ppm/°C @G – 1; Span drift 50 ppm/°C @G - 1
Weight
10g (0.35 oz)
Features
- Being used for printed wiring board installation
- Gain adjustable range, × 1 to × 10
- Power 11.5 - 16 V DC
- Small installation area in printed wiring board
- Small stray capacitance between input and output
- Up to 2.3 kV isolation between input to output or power input
Datasheet
Extracted Text
MODEL: 20VS1B Overload input voltage: ±30 V DC continuous Hybrid IC Isolation Amplifiers 20 Series Input offset voltage: ±30 mV Input bias current: 0.5 nA TYP. (@25°C) ISOLATION AMPLIFIER (input isolation) OUTPUT SPECIFICATIONS Functions & Features ■ DC Voltage: -7.5 – +7.5 V DC • Being used for printed wiring board installation Load resistance: ≥ 5 kΩ • Up to 2.3 kV isolation between input to output or power Output impedance: ≤ 1 Ω input • Small stray capacitance between input and output • Small installation area in printed wiring board REFERENCE VOLTAGE SOURCE • Gain adjustable range, × 1 to × 10 Output voltage: • Power 11.5 - 16 V DC ±15 V DC TYP. (+15 V power supply) ±11 V DC TYP. (+11.5 V power supply) Typical Applications Load current: ≤ 2 mA • Isolating the field and iput circuit of microprocessor to reduce noise from field INSTALLATION • Available for manufacturers of small-lot products to omit Power input the development of isolation circuit •DC: Operational voltage range 11.5 – 16 V; 14 (.55) ripple 2 %p-p max.; approx. 7 mA with no load Operating temperature: -10 to +70°C (14 to 158°F) 21 (.83) Operating humidity: 30 to 90 %RH (non-condensing) Mounting: Soldering to the printed wiring board 52 (2.05) Weight: 10g (0.35 oz) mm (inch) PERFORMANCE in percentage of span Linearity: ±0.05 % MODEL: 20VS1B–7W7W–U Temp. coefficient: Offset drift 50 ppm/°C @G = 1 Span drift 50 ppm/°C @G = 1 ORDERING INFORMATION Frequency characteristics: 1 kHz, 3 dB • Code number: 20VS1B-7W7W-U Response time: ≤ 450 microsec. Conversion gain: ×0.95 ±5 % INPUT / OUTPUT Gain adjustable range: × 1 to × 10 7W7W: -7.5 - +7.5 V DC (Input resistance 1 MΩ min.) Line voltage effect: ±0.2 % over voltage range / -7.5 - +7.5 V DC (Load resistance 5 kΩ min.) Insulation resistance: ≥ 100 MΩ with 500 V DC Dielectric strength: 2300 V AC @1 minute (input or reference voltage source to output or power) POWER INPUT CMRR: ≥ 100 dB (500 V AC 50/60 Hz) DC Power U: 15 V DC GENERAL SPECIFICATIONS Construction: Hybrid IC Isolation: Input to output or power INPUT SPECIFICATIONS ■ DC Voltage Input : -7.5 – +7.5 V DC Input resistance: ≥ 1 MΩ (10 kΩ in power failure) http://www.m-system.co.jp/ 20VS1B SPECIFICATIONS ES-4424 Rev.0 Page 1/4 MODEL: 20VS1B EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch) MAX52 (2.05) MAX14 (.55) PIN ASSIGNMENT 1 FEEDBACK 2 INVERTING INPUT 3 NON-INVERTING INPUT 4 COM (–) 5 REFERENCE VOLTAGE SOURCE (+) 6 REFERENCE VOLTAGE SOURCE (–) 1 14 17 6 14 POWER SUPPLY (+) 15 POWER SUPPLY (–) 16 OUTPUT (–) 17 OUTPUT (+) 2.54 (.1) 0.25 0.5 (.01) (.02) 12.7 (.5) 20.32 (.8) 7.62 5.7 (.22) (.3) 20.32 (.8) SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM FEEDBACK 1 INVERTING INPUT 2 Isolation Output INPUT NON-INVERTING INPUT 3 Amplifier 17 + Driver OUTPUT COM (–) 4 16 – (+) 5 14 + REFERENCE VOLTAGE SOURCE POWER SUPPLY (–) 6 15 – Note. The reference voltage source is common to the COM (–), terminal 4. APPLICATION EXAMPLE The series resistance of the amplifier, R1 + R2 must be between 10 kΩ and 200 kΩ. n Non-inverting amplifier circuit: Basic example of G = 0.95 1 R1 – 2 17 + – + + 3 OUTPUT ±4.75V DC + INPUT ±5V DC 4 16 – – + 5 14 + REFERENCE POWER 15V DC VOLTAGE SOURCE 6 15 – – Non-inverting circuit G = 0.95 http://www.m-system.co.jp/ 20VS1B SPECIFICATIONS ES-4424 Rev.0 Page 2/4 6.7 MAX21 (.83) (.26) MODEL: 20VS1B ■ Inverting amplifier circuit: Basic example of G = -0.95 (output inverted to the input) R1 R1 + 1 – 17 2 + – + INPUT ±5V DC + OUTPUT ±4.75V DC 3 16 – 4 – + 5 14 + POWER 15V DC REFERENCE VOLTAGE SOURCE 6 15 – – Inverting circuit G = -0.95 ■ Non-inverting amplifier circuit: Example of G = 1 + R1 / R2 R2 R1 1 – 2 17 + – + + 3 OUTPUT VO + INPUT VIN 4 16 – – + 5 14 + POWER 15V DC REFERENCE VOLTAGE SOURCE 6 15 – – Non-inverting amplifier circuit G = 1 + R1 / R2 ■ Inverting amplifier circuit: Example of G = -R1 / R2 (output inverted to the input) R2 R1 + 1 – 2 17 + – + INPUT VIN + 3 OUTPUT VO – 4 16 – + 5 14 + POWER 15V DC REFERENCE VOLTAGE SOURCE 6 15 – – Inverting amplifier circuit G = -R1 / R2 ■ Non-inverting amplifier's circuit with external adjustments: Example of G = 2 10kΩ (SPAN) 10kΩ 9kΩ 1 2kΩ – 17 2 + – + + OUTPUT ±5V DC + 3 16 4 – 50kΩ INPUT ±2.5V DC (ZERO) 200Ω 5 14 + + REFERENCE POWER 15V DC VOLTAGE – 6 – SOURCE 15 – 30kΩ Non-inverting amplifier circuit zero/span adjustments (input ±2.5V, output ±5V) http://www.m-system.co.jp/ 20VS1B SPECIFICATIONS ES-4424 Rev.0 Page 3/4 MODEL: 20VS1B ■ Inverting amplifier's circuit with external adjustments: Example of G = -1 (output inverted to the input) 10kΩ (SPAN) 10kΩ 9kΩ + 1 2kΩ – 17 2 + – + INPUT ±5V DC + OUTPUT ±5V DC 3 16 – 4 – 100kΩ (ZERO) 200Ω 5 14 + + REFERENCE POWER 15V DC VOLTAGE 6 15 – – SOURCE 30kΩ Inverting amplifier circuit zero/span adjustments (input ±5V, output ±5V) ■ Non-inverting amplifier circuit: Example of ±10V DC output (±10V DC to the input ±5V DC) +15V 1 – R1 + – + 2 17 – + R3 + + 3 -15V OUTPUT ±10V DC INPUT ±5V DC – 4 16 R3 – + 5 14 + REFERENCE VOLTAGE SOURCE 6 15 POWER 15V DC – – Non-inverting circuit G = 1 + R3 / R3 =2 ■ Inverting amplifier circuit: Example of ±10V DC output (output inverted to the input) +15V R1 R1 + 1 – + – + 17 2 – + R3 INPUT ±5V DC + -15V 3 OUTPUT ±10V DC 16 – 4 R3 – + 5 14 + REFERENCE VOLTAGE SOURCE 6 15V DC – POWER 15 – Inverting circuit G = -(1 + R3 / R3) = -2 Specifications are subject to change without notice. http://www.m-system.co.jp/ 20VS1B SPECIFICATIONS ES-4424 Rev.0 Page 4/4
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