描述
The LTA809x family (LTA8091, LTA8092, and LTA8094) is a new generation of high voltage (48 V),low noise, precision operational amplifiers. These devices offer outstanding dc precision and acperformance, including low offset (±25 μV typically), low offset drift (±1 μV/°C typically), 22-MHzbandwidth, and 4 nV/√Hz Input voltage noise density at 10 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 (20 V/μs) make the LTA809x high-performance operational amplifiers for high-voltage industrial applications.
The robust design of the LTA809x 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 LTA809x are optimized for operation at voltages from +4 V (±2 V) to +48 V (±24 V) over the extended temperature range of -40 °C to +125 °C.
The LTA8091 (single) is available in both SOT23-5L and SOIC-8L packages. The LTA8092 (dual) is offered in SOIC-8L and MSOP-8L packages. The quad-channel LTA8094 is offered in both SOIC-14L and TSSOP-14L packages
优势和特点
Wide Supply: ±2.25 V to ±24 V, 4.5 V to 48 V
Wide Bandwidth: 22 MHz GBW
High Slew Rate: 20 V/μs
Low Noise: 4 nV/√Hz at 10 kHz
Low Offset Voltage: ±350 μV Maximum
Low Offset Voltage Drift: ±1.5 μV/°C
High Common-Mode Rejection: 116 dB
Low Bias Current: ±10 pA
EMI/RFI Filtered Inputs
应用
- High-Side and Low-Side Current Sensing
- Audio Preamplifier
- High Precision Comparator
- Multiplexed Data-Acquisition Systems
- High-Resolution ADC Driver Amplifiers
- SAR ADC Reference Buffers
- Test and Measurement Equipment
- Programmable Logic Controllers
