Datasheet

LM4765
www.ti.com SNAS030C –AUGUST 1998–REVISED APRIL 2013
ELECTRICAL CHARACTERISTICS
(1)(2)
The following specifications apply for V
CC
= +28V, V
EE
= −28V with R
L
= 8Ω unless otherwise specified. Limits apply for T
A
=
25°C.
Symbol Parameter Conditions LM4765 Units
(Limits)
Typical
(3)
Limit
(4)
|V
CC
| + Power Supply Voltage
(5)
GND − V
EE
≥ 9V 18 20 V (min)
|V
EE
| 64 V (max)
P
O
(6)
Output Power (Continuous THD + N = 0.1% (max),
Average)
f = 1 kHz
|V
CC
| = |V
EE
| = 28V, R
L
= 8Ω 30 25 W/ch (min)
|V
CC
| = |V
EE
| = 20V, R
L
= 4Ω 22 15 W/ch (min)
THD + N Total Harmonic Distortion Plus 30 W/ch, R
L
= 8Ω 0.08 %
Noise
15 W/ch, R
L
= 4Ω, |V
CC
| = |V
EE
| = 20V 0.1 %
20 Hz ≤ f ≤ 20 kHz, A
V
= 26 dB
X
talk
Channel Separation f = 1 kHz, V
O
= 10.9 Vrms 80 dB
SR
(6)
Slew Rate V
IN
= 1.414 Vrms, t
rise
= 2 ns 18 12 V/μs (min)
I
total
(7)
Total Quiescent Power Both Amplifiers V
CM
= 0V,
Supply Current V
O
= 0V, I
O
= 0 mA
Standby: Off 50 80 mA (max)
Standby: On 6.5 8 mA (max)
V
OS
(7)
Input Offset Voltage V
CM
= 0V, I
O
= 0 mA 2.0 15 mV (max)
I
B
Input Bias Current V
CM
= 0V, I
O
= 0 mA 0.2 0.5 μA (max)
I
OS
Input Offset Current V
CM
= 0V, I
O
= 0 mA 0.002 0.2 μA (max)
I
O
Output Current Limit |V
CC
| = |V
EE
| = 10V, t
ON
= 10 ms, 3.5 2.9 Apk (min)
V
O
= 0V
V
OD
(7)
Output Dropout Voltage
(8)
|V
CC
–V
O
|, V
CC
= 20V, I
O
= +100 mA 1.8 2.3 V (max)
|V
O
–V
EE
|, V
EE
= −20V, I
O
= −100 mA 2.5 3.2 V (max)
PSRR
(7)
Power Supply Rejection Ratio V
CC
= 30V to 10V, V
EE
= −30V, 115 85 dB (min)
V
CM
= 0V, I
O
= 0 mA
V
CC
= 30V, V
EE
= −30V to −10V 110 85 dB (min)
V
CM
= 0V, I
O
= 0 mA
CMRR
(7)
Common Mode Rejection Ratio V
CC
= 35V to 10V, V
EE
= −10V to −35V, 110 80 dB (min)
V
CM
= 10V to −10V, I
O
= 0 mA
A
VOL
(7)
Open Loop Voltage Gain R
L
= 2 kΩ, Δ V
O
= 30V 110 90 dB (min)
GBWP Gain Bandwidth Product f
O
= 100 kHz, V
IN
= 50 mVrms 7.5 5 MHz (min)
e
IN
(6)
Input Noise IHF—A Weighting Filter 2.0 8 μV (max)
R
IN
= 600Ω (Input Referred)
(1) All voltages are measured with respect to the GND pins (5, 10), 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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure 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) Typicals are measured at 25°C and represent the parametric norm.
(4) Limits are specifications that all parts are tested in production to meet the stated values.
(5) V
EE
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 V
CC
and V
EE
must be greater than 14V.
(6) AC Electrical Test; Refer to TEST CIRCUIT #2 .
(7) DC Electrical Test; Refer to TEST CIRCUIT #1.
(8) The output dropout voltage, V
OD
, is the supply voltage minus the clipping voltage. Refer to the Clipping Voltage vs. Supply Voltage
graph in the TYPICAL PERFORMANCE CHARACTERISTICS section.
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