AMC1100_15 Datasheet, PDF (1/33 Pages) Texas Instruments – AMC1100 Fully-Differential Isolation Amplifier

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AMC1100
SBAS562A – APRIL 2012 – REVISED DECEMBER 2014
AMC1100 Fully-Differential Isolation Amplifier
1 Features
•1 ±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 5 V
• Input Bandwidth: 60 kHz min
• Fixed Gain: 8 (0.5% Accuracy)
• High Common-Mode Rejection Ratio: 108 dB
• Low-Side Operation: 3.3 V
• Certified Galvanic Isolation:
– UL1577 and IEC60747-5-2 Approved
– Isolation Voltage: 4250 V_PEAK
– Working Voltage: 1200 V_PEAK
– Transient Immunity: 2.5 kV/µs min
• Typical 10-Year Life Span at Rated Working
Voltage (see Application Report SLLA197)
• Fully Specified Over the Extended Industrial
Temperature Range
2 Applications
• Shunt Resistor Based Current Sensing in:
– Energy Meters
– Green Energy
– Power Measurement Applications
3 Description
The AMC1100 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 is certified to
provide galvanic isolation of up to 4250 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 AMC1100 input is optimized for direct connection
to shunt resistors or other low voltage level signal
sources. The excellent performance of the device
enables accurate current and voltage measurement
in energy-metering applications. The output signal
common-mode voltage is automatically adjusted to
either the 3-V or 5-V low-side supply.
The AMC1100 is fully specified over the extended
industrial temperature range of –40°C to +105°C and
is available in the SMD-type, wide-body SOIC-8
(DWV) and gullwing-8 (DUB) packages.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
AMC1100
SOP (8)
SOIC (8)
9.50 mm × 6.57 mm
5.85 mm × 7.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
HV+
Floating
Power Supply
Gate Driver
5.0 V
AMC1100
VDD1
VDD2
3.3 V, or 5.0 V
To Load
RSHUNT
Gate Driver
GND1
GND2
VINP
VINN
VOUTP
VOUTN
ADS7263
HV-
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.