LM4766 datasheet(4/19 Pages) NSC

4 / 19 page

Electrical Characteristics (Notes 4, 5) (Continued)

The following specifications apply for V

CC = +30V, VEE = −30V, IMUTE = −0.5mA with RL =8

Ω unless otherwise specified. Lim-

its apply for T

A = 25˚C.

Symbol

Parameter

Conditions

LM4766

Units

(Limits)

Typical

Limit

(Note 9)

(Note 10)

PSRR

Power Supply Rejection Ratio

CC = 30V to 10V, VEE = −30V,

125

dB (min)

(Note 2)

CM = 0V, IO = 0mA

CC = 30V, VEE = −30V to −10V

110

dB (min)

CM = 0V, IO = 0mA

CMRR

Common Mode Rejection Ratio V

CC = 50V to 10V, VEE = −10V to −50V,

110

dB (min)

(Note 2)

CM = 20V to −20V, IO = 0mA

VOL

(Note 2)

Open Loop Voltage Gain

L =2k

Ω, ∆V

O = 40V

115

dB (min)

GBWP

Gain Bandwidth Product

O = 100kHz, VIN = 50mVrms

MHz (min)

Input Noise

IHF–A Weighting Filter

2.0

µV (max)

(Note 3)

IN = 600

Ω (Input Referred)

SNR

Signal-to-Noise Ratio

O = 1W, A–Weighted,

Measured at 1kHz, R

S =25

Ω

O = 25W, A–Weighted

112

Measured at 1kHz, R

S =25

Ω

Mute Attenuation

Pin 6,11 at 2.5V

115

dB (min)

Note 1: Operation is guaranteed up to 60V, however, distortion may be introduced from SPiKe Protection Circuitry if proper thermal considerations are not taken

into account. Refer to the Application Information section for a complete explanation.

Note 2: DC Electrical Test; Refer to Test Circuit #1.

Note 3: AC Electrical Test; Refer to Test Circuit #2.

Note 4: All voltages are measured with respect to the GND pins (5, 10), unless otherwise specified.

Note 5: 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 guaranteed for parameters where no limit

is given, however, the typical value is a good indication of device performance.

Note 6: For operating at case temperatures above 25˚C, the device must be derated based on a 150˚C maximum junction temperature and a thermal resistance

θJC = 1˚C/W (junction to case) for the T package. Refer to the section Determining the Correct Heat Sink in the Application Information section.

Note 7: Human body model, 100pF discharged through a 1.5k

Ω resistor.

Note 8: The operating junction temperature maximum is 150˚C, however, the instantaneous Safe Operating Area temperature is 250˚C.

Note 9: Typicals are measured at 25˚C and represent the parametric norm.

Note 10: Limits are guarantees that all parts are tested in production to meet the stated values.

Note 11: VEE must have at least −9V at its pin with reference to ground in order for the under-voltage protection circuitry to be disabled. In addition, the voltage

differential between VCC and VEE must be greater than 14V.

Note 12: The output dropout voltage, VOD, is the supply voltage minus the clipping voltage. Refer to the Clipping Voltage vs. Supply Voltage graph in the Typical

Performance Characteristics section.

Note 13: When using the isolated package (TF), the

θJC is 2˚C/W verses 1˚C/W for the non-isolated package (T). This increased thermal resistance from junction

to case requires a lower supply voltage for decreased power dissipation within the package. Voltages higher than ±26V maybe used but will require a heat sink with

less than 1˚C/W thermal resistance to avoid activating thermal shutdown during normal operation.

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