LME49740_14 Datasheet, PDF (4/24 Pages) Texas Instruments – Quad High-Performance, High-Fidelity Audio Operational Amplifier

LME49740
SNAS377A – FEBRUARY 2007 – REVISED FEBRUARY 2008
www.ti.com
ELECTRICAL CHARACTERISTICS⁽¹⁾⁽²⁾
The following specifications apply for V_S = ±15V, R_L = 2kΩ, f_IN = 1kHz, and T_A = 25C, unless otherwise specified.
Symbol
Parameter
Conditions
LME49740
Typical ⁽³⁾
Limit ^{(4) (5)}
THD+N
IMD
Total Harmonic Distortion + Noise
Intermodulation Distortion
A_V = 1, V_OUT = 3V_RMS
R_L = 2kΩ
R_L = 600Ω
A_V = 1, V_OUT = 3V_RMS
Two-tone, 60Hz & 7kHz 4:1
0.00003
0.00003
0.00005
0.00009
GBWP
Gain Bandwidth Product
55
45
SR
Slew Rate
±20
±15
FPBW
Full Power Bandwidth
V_OUT = 1V_P-P, –3dB
referenced to output magnitude
10
at f = 1kHz
t_s
Settling time
A_V = 1, 10V step, C_L = 100pF
0.1% error range
1.2
Equivalent Input Noise Voltage
f_BW = 20Hz to 20kHz
e_n
Equivalent Input Noise Density
f = 1kHz
f = 10Hz
0.34
0.65
2.7
4.7
6.4
i_n
Current Noise Density
f = 1kHz
f = 10Hz
1.6
3.1
V_OS
Offset Voltage
ΔV_OS/ΔTemp
Average Input Offset Voltage Drift vs
Temperature
40°C ≤ T_A ≤ 85°C
±0.1
±0.7
0.2
PSRR
Average Input Offset Voltage Shift vs
Power Supply Voltage
ΔV_S = 20V⁽⁶⁾
120
110
ISO_CH-CH
Channel-to-Channel Isolation
I_B
ΔI_OS/ΔTemp
Input Bias Current
Input Bias Current Drift vs
Temperature
f_IN = 1kHz
f_IN = 20kHz
V_CM = 0V
–40°C ≤ T_A ≤ 85°C
118
112
10
72
0.1
I_OS
V_IN-CM
Input Offset Current
V_CM = 0V
Common-Mode Input Voltage Range
11
+14.1
–13.9
65
(V+)–2.0
(V-)+2.0
CMRR
Z_IN
A_VOL
V_OUTMAX
I_OUT
I_OUT-CC
Common-Mode Rejection
Differential Input Impedance
Common Mode Input Impedance
Open Loop Voltage Gain
Maximum Output Voltage Swing
Output Current
Short Circuit Current
–10V<V_CM<10V
–10V<V_CM<10V
–10V<V_OUT<10V, R_L = 600Ω
–10V<V_OUT<10V, R_L = 2kΩ
–10V<V_OUT<10V, R_L = 10kΩ
R_L = 600Ω
R_L = 2kΩ
R_L = 10kΩ
R_L = 600Ω, V_S = ±17V
120
30
1000
140
140
140
±13.6
±14.0
±14.1
±26
+30
–38
110
125
±12.5
±23
R_OUT
Output Impedance
f_IN = 10kHz
Closed-Loop
Open-Loop
0.01
13
Units
(Limits)
% (max)
% (max)
% (max)
MHz (min)
V/μs (min)
MHz
μs
μV_RMS
nV/√Hz
nV/√Hz
pA/√Hz
pA/√Hz
mV (max)
μV/°C
dB (min)
dB
dB
nA (max)
nA/°C
nA (max)
V (min)
V (min)
dB (min)
kΩ
MΩ
dB (min)
dB (min)
dB (min)
V (min)
V (min)
V (min)
mA (min)
mA
mA
Ω
Ω
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
(2) Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For ensured
specifications and test conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed.
Some performance characteristics may degrade when the device is not operated under the listed test conditions.
(3) Typical specifications are specified at +25ºC and represent the most likely parametric norm.
(4) Tested limits are specified to National's AOQL (Average Outgoing Quality Level).
(5) Datasheet min/max specification limits are specified by design, test, or statistical analysis.
(6) PSRR is measured as follows: V_OS is measured at two supply voltages, ±5V and ±15V. PSRR = |20log(ΔV_OS/ΔV_S)|.
4
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