AMC1200-Q1 Texas instruments

AMC1200-Q1

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AMC1200-Q1

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Описание

The AMC1200-Q1 is a precision isolation amplifier with the output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. This barrier is certified to provide galvanic isolation of up to 4250 VPEAK according to UL1577 and VDE V 0884-10. Used in conjunction with isolated power supplies, this device prevents noise currents on a high common-mode voltage line from entering the local ground and interfering with or damaging sensitive circuitry. The input of the AMC1200-Q1 is optimized for direct connection to shunt resistors or other low-voltage level signal sources. The performance of the device supports accurate current control, resulting in systemlevel power saving and (especially in motor-control applications) lower torque ripple. The common-mode voltage of the output signal is automatically adjusted to either the 3-V or 5-V low-side supply. The AMC1200-Q1 is available in a wide-body, 8-pin SOIC package (DWV) and a gullwing, 8-pin SOP package (DUB).

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Temperature Grade 2: –40°C to 105°C
- HBM ESD Classification Level H2
- CDM ESD Classification Level C3B
±250-mV Input Voltage Range Optimized for
Shunt Resistors
Very Low Nonlinearity: 0.075% (max)
with 5-V High-Side Supply
Low Offset Error: 1.5 mV (max)
Low Noise: 3.1 m_VRMS (typical)
Low High-Side Supply Current:
8 mA (max) at 5 V
Input Bandwidth: 60 kHz (min)
Fixed Gain: 8 (0.5% accuracy)
High Common-Mode Rejection Ratio:
108 dB (typical)
3.3-V Operation on Low-Side
Certified Galvanic Isolation:
- UL1577 and VDE V 0884-10 Approved
- Isolation Voltage: 4250 VPEAK
- Working Voltage: 1200 VPEAK
- Transient Immunity: 10 kV/\xECs (min)
Typical 10-Year Lifespan at Rated Working
Voltage (see Application Report, SLLA197

Device type	Current sensing
Peak-to-peak input voltage range (V)	0.25
Isolation rating	Basic
Withstand isolation voltage (VISO) (Vrms)	4250
Working isolation voltage (VIOWM) (Vrms)	800
Transient isolation voltage (VIOTM) (VPK)	4250
CMTI (min) (kV/µs)	10
Creepage (min) (mm)	8.5
Clearance (min) (mm)	8.5
Input offset (±) (max) (V)	0.0015
Input offset drift (±) (typ) (V/°C)	0.0000015
Rating	Automotive
Operating temperature range (°C)	-40 to 105