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描述

The LTA8071, LTA8072 and LTA8074 (LTA807x) are a family of low power, 48 V wide supply voltage, rail-to-rail output, precision operational amplifiers capable of operating on supplies ranging from +4.5 V (±2.25 V) to +48 V (±22 V). This new generation of high-voltage CMOS operational amplifiers, in conjunction with the LTA809x, LTA808x and LTA806x, provide a family of bandwidth, noise, and power options to meet the needs of a wide variety of applications. The LTA807x devices offer outstanding dc precision and ac performance, including low offset (±25 μV typically), low offset drift (±1 μV/°C typically), 4.5 MHz bandwidth, and 15 nV/√Hz Input voltage noise density at 1 kHz. Unique features such as differential input-voltage range to the negative supply rail, high output current (±45 mA), high capacitive load drive of up to 1 nF, and high slew rate (4 V/μs) make the LTA807x high-performance operational amplifiers for high-voltage industrial applications.

The robust design of the LTA807x family provides ease-of-use to the circuit designer: integrated RF/EMI rejection filter, no phase reversal in overdrive conditions, and high electro-static discharge (ESD) protection. The LTA807x are optimized for operation at voltages from +4.5 V (±2.25 V) to +48 V (±24 V) over the extended temperature range of −40 °C to +125 °C.

优势和特点

  • Wide Supply: ±2.25 V to ±24 V, 4.5 V to 48 V
  • Low Offset Voltage: ±25 μV
  • Low Offset Voltage Drift: ±1 μV/°C
  • High Common-Mode Rejection: 120 dB
  • Gain Bandwidth: 4.5 MHz
  • Slew Rate: 4 V/μs
  • Low Noise: 15 nV/√Hz at 1 kHz
  • Low Bias Current: ±5 pA
  • Rail-to-Rail Output

应用

  • Tracking Amplifier in Power Modules
  • Merchant Power Supplies
  • High-Side and Low-Side Current Sensing
  • High Precision Comparator
  • Battery-Powered Instruments
  • Test and Measurement Equipment
  • Multiplexed Data-Acquisition Systems
  • Programmable Logic Controllers
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