LME49721MAX/NOPB National Semiconductor, LME49721MAX/NOPB Datasheet

IC AMP AUDIO STER AB HIFI 8SOIC

LME49721MAX/NOPB

Manufacturer Part Number
LME49721MAX/NOPB
Description
IC AMP AUDIO STER AB HIFI 8SOIC
Manufacturer
National Semiconductor
Datasheet
1.LME49721MABD.pdf (26 pages)

Specifications of LME49721MAX/NOPB

Amplifier Type
Audio
Number Of Circuits
1
Output Type
Rail-to-Rail
Slew Rate
8.5 V/µs
Gain Bandwidth Product
20MHz
Current - Input Bias
0.04pA
Voltage - Input Offset
300µV
Current - Supply
2.15mA
Current - Output / Channel
9.7mA
Voltage - Supply, Single/dual (±)
2.2 V ~ 5.5 V, ±1.1 V ~ 2.75 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
For Use With
LME49721MABD - BOARD EVAL FOR LME49721
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
-3db Bandwidth
-
Other names
LME49721MAX

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Amily Shenzhen XNWY Technology Co., Ltd Amily Shenzhen XNWY Technology Co., Ltd
Part Number:
LME49721MAX/NOPB
0
© 2010 National Semiconductor Corporation
High Performance, High Fidelity Rail-to-Rail Input/Output
Audio Operational Amplifier
General Description
The LME49721 is a low distortion, low noise Rail-to-Rail Input/
Output operational amplifier optimized and fully specified for
high performance, high fidelity applications. Combining ad-
vanced leading-edge process technology with state-of-the-art
circuit design, the LME49721 Rail-to-Rail Input/Output oper-
ational amplifier delivers superior signal amplification for out-
standing performance. The LME49721 combines a very high
slew rate with low THD+N to easily satisfy demanding appli-
cations. To ensure that the most challenging loads are driven
without compromise, the LME49721 has a high slew rate of
±8.5V/μs and an output current capability of ±9.7mA. Further,
dynamic range is maximized by an output stage that drives
10kΩ loads to within 10mV of either power supply voltage.
The LME49721 has a wide supply range of 2.2V to 5.5V. Over
this supply range the LME49721’s input circuitry maintains
excellent common-mode and power supply rejection, as well
as maintaining its low input bias current. The LME49721 is
unity gain stable.
Key Specifications
Typical Connection, Pinout, and Package Marking
■ 
■ 
■ 
 
■ 
(A
Power Supply Voltage Range
Quiescent Current
THD+N
Input Noise Density
V
R
R
= 2, V
L
L
= 2kΩ
= 600Ω
OUT
FIGURE 1. Buffer Amplifier
= 4V
p-p
, f
IN
= 1kHz)
4nV/
202049
√
20204909
Hz (typ), @ 1kHz
0.00008% (typ)
0.0001% (typ)
2.15mA (typ)
2.2V to 5.5V
LME49721
Features
■
■
■
■
Applications
■
■
■
■
■
■
■
■
■
■
■
■ 
■ 
■ 
■ 
■ 
■ 
Rail-to-rail Input and Output
Easily drives 10kΩ loads to within 10mV of each power
supply voltage
Optimized for superior audio signal fidelity
Output short circuit protection
Ultra high quality portable 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
DAC I–V converter
ADC front-end signal conditioning
Slew Rate
Gain Bandwidth Product
Open Loop Gain (R
Input Bias Current
Input Offset Voltage
PSRR
Se NS Package Number M08A
Order Number LME49721MA
L
= 600Ω)
±8.5V/μs (typ)
April 21, 2010
www.national.com
20MHz (typ)
118dB (typ)
0.3mV (typ)
103dB (typ)
40fA (typ)
20204910

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LME49721MAX/NOPB Summary of contents

Page 1

... L = 600Ω ■  Input Noise Density Typical Connection, Pinout, and Package Marking FIGURE 1. Buffer Amplifier © 2010 National Semiconductor Corporation LME49721 ■  Slew Rate ■  Gain Bandwidth Product ■  Open Loop Gain (R ■  Input Bias Current ■ ...

Page 2

... Ordering Information Package Part Number LME49721MA/NOPB 8 – Pin Narrow LME49721MAE/NOPB SOIC LME49721MAX/NOPB www.national.com Package Marking 202049x1 NS = National Logo Z = Assembly plant code Digit date code TT = Lot traceability L49721 = LME49721 MA = Narrow SOIC package code Package Marking Transport Media 95 units/Rail L49721 250 units Tape and Reel 2 ...

Page 3

... Absolute Maximum Ratings 2) 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-) Output Short Circuit (Note 3) Electrical Characteristics for the LME49721 in Figure 5V 10kΩ, R ...

Page 4

Symbol Parameter V Output Voltage Swing OUTMIN I Output Current OUT I Short Circuit Current OUT-SC R Output Impedance OUT I Quiescent Current per Amplifier S Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may ...

Page 5

Typical Performance Characteristics THD+N vs Frequency V = ±2.5V OUT R = 2kΩ 22kHz L V THD+N vs Frequency V = ±2.5V OUT R = 10kΩ, A ...

Page 6

THD+N vs Frequency V = ±2.75V OUT R = 2kΩ 22kHz L V THD+N vs Frequency V = ±2.75V OUT R = 10kΩ 22kHz L V ...

Page 7

THD+N vs Output Voltage V = ±1. 2kΩ 202049u7 THD+N vs Output Voltage V = ±1. 600Ω 202049u9 THD+N vs Output Voltage V = ...

Page 8

THD+N vs Output Voltage V = ±2. 2kΩ THD+N vs Output Voltage V = ±2. 600Ω THD+N vs Output Voltage V = ±2.75V 10kΩ www.national.com ...

Page 9

Crosstalk vs Frequency V = ±1. OUT p 2kΩ L 202049r4 Crosstalk vs Frequency V = ±1. OUT p-p = 600Ω 202049r6 Crosstalk vs Frequency V = ±1.5V ...

Page 10

Crosstalk vs Frequency V = ±2. OUT R = 2kΩ L Crosstalk vs Frequency V = ±2. OUT = 600Ω Crosstalk vs Frequency V = ±2.75V ...

Page 11

PSRR vs Frequency V = ±1. 200mV RIPPLE P 2kΩ L 202049v9 PSRR vs Frequency V = ±1. 200mV RIPPLE P-P = 600Ω 202049w1 PSRR vs Frequency V = ±1.5V ...

Page 12

PSRR vs Frequency V = ±2. 200mV RIPPLE R = 2kΩ L PSRR vs Frequency V = ±2. 200mV RIPPLE = 600Ω PSRR vs Frequency V = ±2.75V 200mV ...

Page 13

CMRR vs Frequency V = ±1. 2kΩ L 202049l3 CMRR vs Frequency V = ±1. 600Ω 202049l5 CMRR vs Frequency V = ±2. 10kΩ L 202049l7 CMRR vs Frequency V ...

Page 14

CMRR vs Frequency V = ±2.75V 2kΩ L CMRR vs Frequency V = ±2.75V S = 600Ω Output Voltage Swing Neg vs Power Supply R = 10kΩ L www.national.com CMRR vs Frequency 202049l9 Output Voltage ...

Page 15

Output Voltage Swing Pos vs Power Supply R = 2kΩ L Output Voltage Swing Pos vs Power Supply = 600Ω Supply Current per amplifier vs Power Supply R = 10kΩ, Dual Supply L Output Voltage Swing Pos vs ...

Page 16

Application Information DISTORTION MEASUREMENTS The vanishingly low residual distortion produced by LME49721 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 ...

Page 17

Figure 3 shows the typical connection for a dual supply in- verting amplifier. The output voltage is centered on zero. FIGURE 3. Dual Supply Inverting Op Amp Figure 4 shows the typical connection for the Buffer Amplifier or also called ...

Page 18

Typical Applications ANAB Preamp kHz = 0.38 μ Weighted Balanced to Single Ended Converter V = V1–V2 O www.national.com 202049n4 − V3 − ...

Page 19

Second Order High Pass Filter (Butterworth) Illustration kHz 0 Illustration kHz 10 Second Order Low Pass Filter 202049n9 Illustration kHz 0 ...

Page 20

Channel Panning Circuit (Pan Pot) www.national.com AC/DC Converter 202049o3 20 202049o2 Line Driver 202049o4 ...

Page 21

Illustration is Hz 320 =11 kHz 1.1 kHz 0.33 μ S kHz A ...

Page 22

Illustration is 101(V2 − V1) www.national.com Balanced Input Mic Amp 22 202049o7 ...

Page 23

... Note 8: At volume of change = ±12 dB    1.7    Reference: “AUDIO/RADIO HANDBOOK”, National Semiconductor, 1980, Page 2–61 10 Band Graphic Equalizer 0.12μF 4.7μF 32 75kΩ 0.056μF 3.3μF 64 68kΩ 0.033μF 1.5μF 62kΩ ...

Page 24

Revision History Rev 1.0 1.1 1.2 www.national.com Date Description 09/26/07 Initial release. 10/01/07 Input more info under the Buffer Amplifier. 04/21/10 Added the Ordering Information table. 24 ...

Page 25

Physical Dimensions inches (millimeters) unless otherwise noted NS Package M08A 25 www.national.com ...

Page 26

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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