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音频运放LM4562数据手册
资料介绍
德州仪器超低噪声音频运放，包含参考电路设计。
The LM4562 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. The LM4562 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LM4562 combines extremely low voltage noise density (2.7nV/√Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LM4562 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.
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| 文件名 | 大小 |
| lm4562.pdf | 2M |
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（完整内容请下载后查看）SNAS326K –AUGUST 2006–REVISED DECEMBER 2013
LM4562 Dual High-Performance, Operational Amplifier
Check for Samples:
1
FEATURES
DESCRIPTION
The LM4562 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. The LM4562 audio
operational amplifiers deliver superior audio signal
amplification for outstanding audio performance. The
LM4562 combines extremely low voltage noise
density (2.7nV/√Hz) with vanishingly low THD+N
(0.00003%) to easily satisfy the most demanding
audio applications. To ensure that the most
challenging loads are driven without compromise, the
LM4562 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.
2
•
Easily Drives 600Ω Loads
•
•
•
•
Optimized for Superior Audio Signal Fidelity
Output Short Circuit Protection
PSRR and CMRR Exceed 120dB (Typ)
SOIC, PDIP, and TO-99 Packages
APPLICATIONS
•
•
•
•
Ultra High-Quality Audio Amplification
High-Fidelity Preamplifiers
High-Performance Professional Audio
High-Fidelity Active Equalization and
Crossover Networks
•
High-Performance Line Drivers and Receivers
The LM4562's outstanding CMRR (120dB), PSRR
(120dB), and VOS (0.1mV) give the amplifier excellent
operational amplifier DC performance.
KEY SPECIFICATIONS
•
•
Power Supply Voltage Range: ±2.5V to ± 17V
THD+N (AV = 1, VOUT = 3VRMS, fIN = 1kHz)
The LM4562 has a wide supply range of ±2.5V to
±17V. Over this supply range the LM4562’s input
circuitry maintains excellent common-mode and
power supply rejection, as well as maintaining its low
input bias current. The LM4562 is unity gain stable.
–
–
RL = 2kΩ: 0.00003% (typ)
RL = 600Ω: 0.00003% (typ)
•
•
•
•
•
•
•
Input Noise Density: 2.7nV/√Hz (typ)
Slew Rate: ±20V/μs (typ)
This
Audio
Operational
Amplifier
achieves
outstanding AC performance while driving complex
loads with values as high as 100pF.
Gain Bandwidth Product: 55MHz (typ)
Open Loop Gain (RL = 600Ω): 140dB (typ)
Input Bias Current: 10nA (typ)
The LM4562 is available in an 8-lead narrow body
SOIC, an 8-lead PDIP, and an 8-lead TO-99.
Input Offset Voltage: 0.1mV (typ)
DC Gain Linearity Error: 0.000009%
TYPICAL APPLICATION
150:
3320:
3320:
150:
26.1 k:
+
909:
-
-
LM4562
LM4562
+
+
3.83 k:
+
100:
OUTPUT
22 nF//4.7 nF//500 pF
10pF
INPUT
47 k:
47 nF//33 nF
A. 1% metal film resistors, 5% polypropylene capacitors
Passively Equalized RIAA Phono Preamplifier
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
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 © 2006–2013, Texas Instruments Incorporated
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