LHV870 Datasheet, PDF (1/27 Pages) Texas Instruments – 44V Single High Performance, High Voltage Operational Amplifier

LHV870
January 5, 2012
44V Single High Performance, High Voltage Operational
Amplifier
General Description
The LHV870 is an ultra-low distortion, low noise, high slew
rate operational amplifier optimized and fully specified for high
performance, high voltage applications. Combining advanced
leading-edge process technology with state-of-the-art circuit
design, the LHV870 operational amplifier delivers superior
signal amplification for outstanding performance. The
LHV870 combines extremely low voltage noise density
(2.7nV/√Hz) with vanishingly low DC Gain Linearity Error
(0.000009%) to easily satisfy the most demanding applica-
tions. To ensure that the most challenging loads are driven
without compromise, the LHV870 has a high slew rate of
±20V/μs and an output current capability of ±26mA. Further,
dynamic range is maximized by an output stage that drives
2kΩ loads to within 1V of either power supply voltage and to
within 1.4V when driving 600Ω loads.
The LHV870's outstanding CMRR (120dB), PSRR (120dB),
and V_OS (0.1mV) give the amplifier excellent DC performance.
The LHV870 operates over a wide supply range of ±2.5V to
±22V and is unity gain stable. This operational amplifier
achieves outstanding AC performance while driving complex
loads with values as high as 100pF.
The LHV870 is available in 10-lead LLP package.
Key Specifications
■ Power Supply Voltage Range
■ Input Noise Density
■ Slew Rate
±2.5V to ±22V
2.7nV/√Hz (typ)
±20V/μs (typ)
■ Gain Bandwidth Product
■ Open Loop Gain (R_L = 600Ω)
■ Input Bias Current
■ Input Offset Voltage
■ DC Gain Linearity Error
■ THD+N
(A_V = 1, V_OUT = 3V_RMS, f_IN = 1kHz)
R_L = 2kΩ
R_L = 600Ω
55MHz (typ)
140dB (typ)
10nA (typ)
0.1mV (typ)
0.000009%
0.00003% (typ)
0.00003% (typ)
Features
■ ^{Easily drives 600Ω loads}
■ ^{Output short circuit protection}
■ ^{PSRR and CMRR exceed 120dB (typ)}
Applications
■ ^{Low noise industrial applications including test,}
measurement, and ultrasound
■ ^{High quality audio amplification}
■ ^{High fidelity preamplifiers, phono preamps, and}
multimedia
■ ^{High performance professional audio}
■ ^{High fidelity equalization and crossover networks with}
active filters
■ ^{High performance line drivers and receivers}
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