LME49720 Datasheet, PDF (1/36 Pages) Texas Instruments – LME49720 Dual High Performance, High Fidelity Audio Operational Amplifier

LME49720
www.ti.com
SNAS393C – MARCH 2007 – REVISED APRIL 2013
LME49720 Dual High Performance, High Fidelity Audio Operational Amplifier
Check for Samples: LME49720
FEATURES
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•2 Easily Drives 600Ω Loads
• Optimized for Superior Audio Signal Fidelity
• Output Short Circuit Protection
• PSRR and CMRR Exceed 120dB (typ)
• SOIC, PDIP, TO-99 Metal Can Packages
APPLICATIONS
• Ultra High Quality Audio Amplification
• High Fidelity Preamplifiers
• High Fidelity Multimedia
• State of the Art Phono Pre Amps
• High Performance Professional Audio
• High Fidelity Equalization and Crossover
Networks
• High Performance Line Drivers
• High Performance Line Receivers
• High Fidelity Active Filters
KEY SPECIFICATIONS
• Power Supply Voltage Range: ±2.5 to ±17V
• THD+N (A_V = 1, V_OUT = 3V_RMS, f_IN = 1kHz):
– R_L = 2kΩ: 0.00003% (typ)
– R_L = 600Ω: 0.00003% (typ)
• Input Noise Density: 2.7nV/√Hz (typ)
• Slew Rate: ±20V/μs (typ)
• Gain Bandwidth Product: 55MHz (typ)
• Open Loop Gain (R_L = 600Ω): 140dB (typ)
• Input Bias Current: 10nA (typ)
• Input Offset Voltage: 0.1mV (typ)
• DC Gain Linearity Error: 0.000009%
DESCRIPTION
The LME49720 is part of the ultra-low distortion, low
noise, high slew rate operational amplifier series
optimized and fully specified for high performance,
high fidelity applications. Combining advanced
leading-edge process technology with state-of-the-art
circuit design, the LME49720 audio operational
amplifiers deliver superior audio signal amplification
for outstanding audio performance. The LME49720
combines extremely low voltage noise density
(2.7nV/√Hz) with vanishingly low THD+N (0.00003%)
to easily satisfy the most demanding audio
applications.
TYPICAL APPLICATION
150:
3320:
150:
3320:
10 pF
INPUT
47 k:
-
LME49720
+
26.1 k:
+
909:
22 nF//4.7 nF//500 pF
3.83 k:
+
100 :
47 nF//33 nF
-
LME49720
+
OUTPUT
Note: 1% metal film resistors, 5% polypropylene capacitors
Figure 1. Passively Equalized RIAA Phono Preamplifier
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2013, Texas Instruments Incorporated