ti公司 推出新好运放 AMC1200 隔离运放
2012-10-25
TI公司AMC1200隔离运放，是高压采集的好运放。单电源5V供电。体积小，输出为已偏置的电压，无需偏置，方便使用。-TI, AMC1200 isolation amplifier, is placed high good luck collecting. 5V single power supply. Small size, the output voltage as bias, no bias, easy to use. 说明
The AMC1200 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 VPEAK 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 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 is fully specified over the extended industrial temperature range of –40 °C to +105 °C and is available in the SMD-type, gullwing-8
特性
±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 mVRMS 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
3.3-V Operation on Low-Side
Certified Galvanic Isolation:
UL1577 and IEC60747-5-2 Approved
Isolation Voltage: 4000 VPEAK
Working Voltage: 1200 VPEAK
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
