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LM4782TABD bảng dữ liệu(PDF) 4 Page - Texas Instruments |
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LM4782TABD bảng dữ liệu(HTML) 4 Page - Texas Instruments |
4 / 32 page LM4782, LM4782TABD SNAS231A – MAY 2004 – REVISED MARCH 2006 www.ti.com Electrical Characteristics (1) (2) The following specifications apply for V + = +25V, V- = −25V, and R L = 8Ω unless otherwise specified. Limits apply for TA = 25°C. Symbol Parameter Conditions LM4782 Units (Limits) Typical(3) Limit(4)(5) 20 V (min) |V+| + |V-| Power Supply Voltage(6) GND − V- ≥ 9.5V 18 64 V (max) VM Mute Attenuation VMUTE = 2.5V 115 80 dB (min) THD+N = 0.5% (max) f = 1kHz; f = 20kHz PO Output Power (RMS) |V+| = |V-| = 19V, RL = 4Ω 20 15 W (min) |V+| = |V-| = 22V, RL = 6Ω 23 20 W (min) |V+| = |V-| = 25V, RL = 8Ω 25 20 W (min) PO = 15W, f = 20Hz - 20kHz AV = 26dB Total Harmonic Distortion + THD+N |V+| = |V-| = 19V, RL = 4Ω 0.4 % Noise |V+| = |V-| = 22V, RL = 6Ω 0.3 % |V+| = |V-| = 25V, RL = 8Ω 0.2 % PO = 10W, f = 1kHz 70 dB Xtalk Channel Separation(7) PO = 10W, f = 10kHz 60 dB SR Slew Rate VIN = 1.414VRMS, trise = 2ns 18 12 V/ μs (min) IDD Total Quiescent Power Supply VCM = 0V, VO = 0V, IO = 0A Current VSTANDBY = GND, Standby = Off 75 120 mA (max) VSTANDBY = 5V, Standby = On 8 10 mA (max) VOS Input Offset Voltage VCM = 0V, IO = 0mA 2.0 15 mV (max) IB Input Bias Current VCM = 0V, IO = 0mA 0.2 0.5 μA (max) IO Output Current Limit |V+| = |V-| = 10V, tON = 10ms, VO = 0V 3.5 2.9 A (min) |V+ - VO|, V + = 20V, I O = +100mA 1.8 2.3 V (max) VOD Output Dropout Voltage(8) |VO - V -|, V-= -20V, I O = -100mA 2.5 3.2 V (max) V+ = 25V to 10V, V-= -25V 115 85 dB (min) VCM = 0V, IO = 0mA PSRR Power Supply Rejection Ratio(9) V+ = 25V, V-= -25V to -10V 110 85 dB (min) VCM = 0V, IO = 0mA CMRR Common Mode Rejection Ratio(9) V+ = 25V to 10V, V-= -10V to -25V 110 80 dB (min) VCM = 10V to -10V, IO = 0mA AVOL Open Loop Voltage Gain |V+| = |V-| = 25V, RL = 2kΩ 110 90 dB (min) ΔVO = 20V GBWP Gain Bandwidth Product |V+| = |V-| = 25V, fIN = 100kHz 7.5 5 MHz (min) VIN = 50mVRMS eIN Input Noise IHF-A-Weighting Filter, 2.0 8 μV (max) RIN = 600Ω (Input Referred) (1) All voltages are measured with respect to the ground pins, unless otherwise specified. (2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not ensured for parameters where no limit is given; however, the typical value is a good indication of device performance. (3) Typical specifications are measured at 25°C and represent the parametric norm. (4) Tested limits are ensured to TI's AOQL (Average Outgoing Quality Level). (5) Datasheet min/max specification limits are specified by design, test, or statistical analysis. (6) V- must have at least - 9.5V at its pin with reference to GND in order for the under-voltage protection circuitry to be disabled. In addition, the voltage differential between V+ and V-must be greater than 14V. (7) Cross talk performance was measured using the demo board shown in the datasheet. PCB layout will affect cross talk. It is recommended that the input and output traces be separated by as much distance as possible. Return ground traces from outputs should also be independent back to single ground point and use as wide of traces as possible. (8) The output dropout voltage is the supply voltage minus the clipping voltage. Refer to the Clipping Voltage vs. Supply Voltage graph in the Typical Performance Characteristics section. (9) DC electrical test. 4 Submit Documentation Feedback Copyright © 2004–2006, Texas Instruments Incorporated Product Folder Links: LM4782 LM4782TABD |
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