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Features 3 Description
1 The AMC1200 and AMC1200B are precision isolation • ±250-mV Input Voltage Range Optimized for
amplifiers with an output separated from the input Shunt Resistors
circuitry by a silicon dioxide (SiO2 ) barrier that is
• Very Low Nonlinearity: 0.075% Maximum at 5 V highly resistant to magnetic interference. This barrier
• Low Offset Error: 1.5 mV Maximum has been certified to provide galvanic isolation of up
• Low Noise: 3.1 mV to 4250 VPEAK (AMC1200B) or 4000 VPEAK RMS Typical
(AMC1200) according to UL1577 and VDE V 0884-
• Low High-Side Supply Current: 10. Used in conjunction with isolated power supplies,
8 mA Maximum at 5 V these devices prevent noise currents on a high
• Input Bandwidth: 60 kHz Minimum common mode voltage line from entering the local
• Fixed Gain: 8 (0.5% accuracy) ground and interfering with or damaging sensitive
circuitry.
• High Common Mode Rejection Ratio: 108 dB
• 3.3-V Operation on Low-Side The input of the AMC1200 or AMC1200B is optimized
for direct connection to shunt resistors or other low
• Certified Galvanic Isolation: voltage level signal sources. The excellent
– UL1577 and VDE V 0884-10 Approved performance of the device supports accurate current
– control resulting in system-level power saving and, Isolation Voltage: 4250 VPEAK (AMC1200B)
especially in motor-control applications, lower torque
– Working Voltage: 1200 VPEAK
ripple. The common mode voltage of the output
– Transient Immunity: 10 kV/µs Minimum signal is automatically adjusted to either the 3-V or
• Typical 10-Year Lifespan at Rated Working 5-V low-side supply.
Voltage (see Application Report SLLA197) The AMC1200 and AMC1200B are fully specified
• Fully Specified Over the Extended Industrial over the extended industrial temperature range of
Temperature Range –40°C to 105°C and are available in a wide-body
SOIC-8 package (DWV) and a gullwing-8 package
2 Applications (DUB).
• Shunt Resistor Based Current Sensing in: Device Information
(1)
– Motor Control PART NUMBER PACKAGE BODY SIZE (NOM)
– Green Energy AMC1200, SOP (8) 9.50 mm × 6.57 mm
– Frequency Inverters AMC1200B SOIC (8) 5.85 mm × 7.50 mm
– Uninterruptible Power Supplies (1) For all available packages, see the orderabl