LME49724MR National Semiconductor, LME49724MR Datasheet
LME49724MR
Specifications of LME49724MR
Available stocks
Related parts for LME49724MR
LME49724MR Summary of contents
Page 1
... Power Supply Voltage Range ■ THD 1kHz) V OUT RMS 2kΩ L © 2008 National Semiconductor Corporation = 600Ω ■ Input Noise Density ■ Slew Rate ■ Gain Bandwidth Product ■ Open Loop Gain (R ■ Input Bias Current √ ...
Page 2
... Typical Application Connection Diagrams Order Number LME49724MR See NS Package Number MRA08B Ordering Information Order Number Package LME49724MR 8 lead PSOP www.national.com FIGURE 1. Typical Application Circuit 300442r4 Package DWG Transport Media # MRA08B 2 300442w9 PSOP Marking 300442r6 Top View XY — Date Code TT — Die Traceability L49724 — ...
Page 3
Pin Descriptions Pin Name 1 V Input pin IN- Sets the output DC voltage. Internally set by a resistor divider to the V midpoint of the voltages on the V 2 OCM externally to a different voltage (50kΩ input impedance). ...
Page 4
... 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 EE Output Short Circuit Power Dissipation (Note 3) ESD Rating (Note 4) ESD Rating (Note 5) Electrical Characteristics and T = 25° ...
Page 5
Symbol Parameter I Input Bias Current B I Input Offset Current OS Input Bias Current Drift vs ΔI /ΔTemp OS Temperature V Common-Mode Input Voltage Range IN-CM CMRR Common-Mode Rejection Differential Input Impedance Z IN Common-Mode Input Impedance OUTPUT CHARACTERISTICS ...
Page 6
Typical Performance Characteristics THD+N vs Frequency V = ±2.5V 0. RMS = 600Ω, 2kΩ, 10kΩ, 80kHz THD+N vs Frequency V = ±15V Differential Input S O RMS = 600Ω, ...
Page 7
THD+N vs Output Voltage = 600Ω, Differential Input V = ±2.5V 20Hz, 1kHz, 20kHz, 80kHz BW 300442t1 THD+N vs Output Voltage = 600Ω, Differential Input V = ±18V 20Hz, 1kHz, ...
Page 8
THD+N vs Output Voltage V = ±2.5V 10kΩ, Differential Input 20Hz, 1kHz, 20kHz, 80kHz BW THD+N vs Output Voltage V = ±18V 10kΩ, Differential Input 20Hz, 1kHz, 20kHz, ...
Page 9
THD+N vs Frequency V = ±15V Single-ended Input S O RMS = 600Ω, 2kΩ, 10kΩ, 80kHz THD+N vs Frequency V = ±18V Single-ended Input S O RMS = 600Ω, ...
Page 10
THD+N vs Output Voltage V = ±2.5V 2kΩ, Single-ended Input 20Hz, 1kHz, 20kHz, 80kHz BW THD+N vs Output Voltage V = ±18V 2kΩ, Single-ended Input 20Hz, 1kHz, 20kHz, ...
Page 11
PSRR vs Frequency = 600Ω, Inputs to GND V = ±2.5V 200mV , 80kHz BW RIPPLE P-P 300442u0 PSRR vs Frequency = 600Ω, Inputs to GND V = ±18V 200mV ...
Page 12
PSRR vs Frequency V = ±2.5V 10kΩ, Inputs to GND 200mV RIPPLE P-P PSRR vs Frequency V = ±18V 10kΩ, Inputs to GND 200mV RIPPLE P-P CMRR vs ...
Page 13
Output Voltage vs Load Resistance = 500Ω – 10kΩ ±2.5V ≤ THD+N 1%, 80kHz BW 300442w3 Output Voltage vs Load Resistance = 500Ω – 10kΩ ±18V ≤ THD+N 1%, 80kHz ...
Page 14
Application Information GENERAL OPERATION The LME49724 is a fully differential amplifier with an integrat- ed common-mode reference input (V amplification provides increased noise immunity, high dy- namic range, and reduced harmonic distortion products. Differential amplifiers typically have high CMRR providing ...
Page 15
SINGLE SUPPLY OPERATION The LME49724 can be operated from a single power supply, as shown in Figure 4. The supply voltage range is limited to a minimum of 5V and a maximum of 36V. The common-mode output DC voltage will ...
Page 16
Value is application and converted dependent. DISTORTION MEASUREMENTS The vanishing low residual distortion produced by the LME49724 is below the capabilities of commercially available equipment. This makes distortion measurements more diffi- cult than simply connecting a distortion meter to ...
Page 17
FIGURE 6. THD+N and IMD Distortion Test Circuit PERFORMANCE VARIATIONS The LME49724 has excellent performance with little variation across different supply voltages, load impedances, and input configuration (single-ended or differential). Inspection of the THD+N vs Frequency and THD+N vs Output ...
Page 18
FIGURE 9. THD+N vs FREQUENCY with ±15V, 80kHz BW OUT RMS S Single-ended and Differential Input FIGURE 10. THD+N vs OUTPUT VOLTAGE with R 10kΩ 20Hz, 1kHz, 20kHz ±15V, ...
Page 19
Demo Board Schematic FIGURE 14. Demonstration Board Circuit 19 300442w8 www.national.com ...
Page 20
... Resistor 10% 0603, NPO Ceramic Capacitor, 50V –20%, +80% 0603, Y5V Ceramic Capacitor, 25V 20% Size C (6032), Tantalum Capacitor, 25V 10% 0805, NPO Ceramic Capacitor, 50V LME49724MR SMA coaxial connector 0.100" 1x3 header, vertical mount 0.100" 1x2 header, vertical mount 20 Comment Inputs & Outputs ...
Page 21
Revision History Rev Date 1.0 11/12/08 Description Initial release. 21 www.national.com ...
Page 22
... Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 8 – Lead PSOP Package Order Number LME49724MR NS Package Number MRA08B 22 ...
Page 23
Notes 23 www.national.com ...
Page 24
... For more National Semiconductor product information and proven design tools, visit the following Web sites at: 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 ...