lme49990max-nopb National Semiconductor Corporation, lme49990max-nopb Datasheet

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lme49990max-nopb

Manufacturer Part Number
lme49990max-nopb
Description
Ultra-low Distortion, Ultra-low Noise Operational Amplifier
Manufacturer
National Semiconductor Corporation
Datasheet
© 2010 National Semiconductor Corporation
Ultra-low Distortion, Ultra-low Noise Operational Amplifier
General Description
The LME49990 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
LME49990 combines low voltage noise density (0.9nV/
with vanishing low THD+N (0.00001%). The LME49990 has
a high slew rate of ±22V/μs and an output current capability
of ±27mA. It drives 600Ω loads to within 2V of either power
supply voltage.
The LME49990’s outstanding Gain (135dB), CMRR (137dB),
PSRR (144dB), and V
operational amplifier DC performance. The LME49990 has a
wide supply range of ±5V to ±18V. The LME49990 is unity
gain stable and is available in an 8-lead narrow body SOIC.
Overture
®
is a registered trademark of National Semiconductor.
FIGURE 1. Voltage Noise Spectral Density
OS
(130μV) give the amplifier excellent
300597
LME49990 Overture
300597e6
Hz)
E-Series
Key Specifications
Features
Applications
■ 
■ 
■ 
■ 
■ 
■ 
■ 
■ 
Easily drives 600Ω load
Output short circuit protection
Ultra high quality audio signal processing
Active Filters
Preamplifiers
Spectrum analyzers
Ultrasound preamplifiers
Sigma-Delta ADC/DAC buffers
Input Noise Density (f = 1kHz)
THD+N
1/f Corner Frequency
Slew Rate
Gain Bandwidth
PSRR
CMRR
Power Supply Voltage Range
(A
R
(A
L
V
V
= 600Ω
= 1, V
= 10
FIGURE 2. THD+N vs Frequency
4
, R
OUT
L
= 3V
= 2kΩ,
®
RMS
, f
f = 90kHz)
IN
= 1kHz)
1.3nV/
0.9nV/
January 8, 2010
±22V/μs (max)
110MHz (typ)
www.national.com
±5V to ±18V
300597d7
144dB (typ)
137dB (typ)
43Hz (typ)
0.00001%
Hz (max)
Hz (typ)

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lme49990max-nopb Summary of contents

Page 1

... The LME49990 is unity gain stable and is available in an 8-lead narrow body SOIC. FIGURE 1. Voltage Noise Spectral Density Overture ® registered trademark of National Semiconductor. © 2010 National Semiconductor Corporation LME49990 Overture E-Series Key Specifications ■  Input Noise Density (f = 1kHz) √ ...

Page 2

... Connection Diagram Ordering Information Order Number Package LME49990MA 8 Ld SOIC LME49990MAX 8 Ld SOIC www.national.com Order Number LME49990MA See NS Package Number — M08A Package DWG # M08A M08A 2500 units in tape and reel 2 30059702 Transport Media MSL Level 95 units in reel 1 1 ...

Page 3

Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Supply Voltage ( Storage Temperature Input Voltage (V-) - 0.3V ...

Page 4

Symbol Parameter NOISE e Input Noise Voltage Density N V_NOISE RMS Voltage Noise i Input Current Noise Density N INPUT CHARACTERISTICS V Offset Voltage OS Input Offset Voltage Drift vs V Drift /ΔTemp) OS Temperature (Δ Input Bias ...

Page 5

Typical Performance Characteristics THD+N vs Output Voltage V = –V = 15V THD+N vs Output Voltage V = – THD+N vs Output Voltage V = –V = 18V ...

Page 6

THD+N vs Frequency V = –V = 15V 2kΩ OUT THD+N vs Frequency V = –V = 15V 600Ω OUT IMD vs Output Voltage V = –V = ...

Page 7

IMD vs Output Voltage V = – 2kΩ IMD vs Output Voltage = 600Ω –V = 18V Voltage Noise Density vs Frequency 300597e6 IMD vs Output Voltage ...

Page 8

PSRR vs Frequency V = –V = 15V 2kΩ RIPPLE —PSRR vs Frequency Output Voltage vs Supply Voltage = 600Ω, THD www.national.com = 200mVpp 300597f4 300597f8 300597f6 8 +PSRR vs ...

Page 9

Application Hints OUTPUT DRIVE AND STABILITY The LME49990 is unity gain stable from both input (both sta- ble when gain = -1 or gain = 1). It able to drive resistive load 600Ω with output circuit with a typical 27mA. ...

Page 10

Typical Applications Illustration is 101(V2 − V1) www.national.com Balanced Input Mic Amp MFB 3rd Order PCM LPF 10 30059743 300597c6 ...

Page 11

Application Information SETTLING TIME AND SLEW RATE MEASUREMENTS The settling time of LME49990 may be verified using the test circuit in Figure 6. The LME49990 is connected for inverting operation, and the output voltage is summed with the input voltage ...

Page 12

DISTORTION MEASUREMENTS The vanishingly low residual distortion produced by LME49990 is below the capabilities of all commercially avail- able equipment. This makes distortion measurements just slightly more difficult than simply connecting a distortion me- ter to the amplifier’s inputs and ...

Page 13

Revision History Rev 1.0 1.01 Date Description 12/16/09 Initial released. 01/08/10 Input text edits. 13 www.national.com ...

Page 14

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted Dual-In-Line Package Order Number LME49990MA NS Package Number M08A 14 ...

Page 15

Notes 15 www.national.com ...

Page 16

... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...

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