AMC1200STDUBRQ1 Datasheet, PDF (1/23 Pages) Texas Instruments – Fully Differential Isolation Amplifier

AMC1200-Q1
www.ti.com
SBAS585 – SEPTEMBER 2012
Fully Differential Isolation Amplifier
Check for Samples: AMC1200-Q1
FEATURES
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•2 AEC-Q100 Qualified With the Following
Results:
– Device Temperature Grade 2: –40°C to
105°C Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
• ±250-mV Input Voltage Range Optimized for
Shunt Resistors
• Very Low Nonlinearity: 0.075% Max. at 5 V
• Low Offset Error: 1.5 mV Max.
• Low Noise: 3.1 mV_RMS Typ.
• Low High-Side Supply Current: 8 mA Max. at
5V
• Input Bandwidth: 60 kHz Min.
• Fixed Gain: 8 (0.5% Accuracy)
• High Common-Mode Rejection Ratio: 108 dB
• 3.3-V Operation on Low-Side
• Certified Galvanic Isolation:
– UL1577 and IEC60747-5-2 Approved
– Isolation Voltage: 4000 V_PEAK
– Working Voltage: 1200 V_PEAK
– Transient Immunity: 10 kV/µs Min.
• Typical 10-Year Lifespan at Rated Working
Voltage (see Application Report SLLA197)
• Fully Specified Over the Extended Industrial
Temperature Range
DESCRIPTION
The AMC1200-Q1 is a precision isolation amplifier
with an output separated from the input circuitry by a
silicon dioxide (SiO₂) barrier that is highly resistant to
magnetic interference. This barrier has been certified
to provide galvanic isolation of up to 4000 V_PEAK
according to UL1577 and IEC60747-5-2. 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 excellent performance of
the device supports accurate current control, resulting
in system-level 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 fully specified over the extended
industrial temperature range of –40 °C to 105 °C and
is available in the SMD-type, gullwing-8 package.
APPLICATIONS
• Shunt Resistor Based Current Sensing in:
– Motor Control
– Green Energy
– Frequency Inverters
– Uninterruptible Power Supplies
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated