LME49720_14 Datasheet, PDF (4/40 Pages) Texas Instruments – Dual High Performance, High Fidelity Audio Operational Amplifier

LME49720
SNAS393B – MARCH 2007 – REVISED OCTOBER 2007
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Electrical Characteristics for the LME49720 ^{(1) (2)}
The following specifications apply for V_S = ±15V, R_L = 2kΩ, f_IN = 1kHz, and T_A = 25°C, unless otherwise specified.
LME49720
Symbol
Parameter
Conditions
Typical
(3)
Limit
(4)
Units
(Limits)
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
GBWP
Gain Bandwidth Product
SR
Slew Rate
FPBW
Full Power Bandwidth
V_OUT = 1V_P-P, –3dB
referenced to output magnitude
at f = 1kHz
t_s
Settling time
A_V = –1, 10V step, C_L = 100pF
0.1% error range
Equivalent Input Noise Voltage
f_BW = 20Hz to 20kHz
e_n
Equivalent Input Noise Density
f = 1kHz
f = 10Hz
i_n
Current Noise Density
f = 1kHz
f = 10Hz
V_OS
Offset Voltage
ΔV_OS/ΔTemp
Average Input Offset Voltage Drift vs
Temperature
–40°C ≤ T_A ≤ 85°C
PSRR
Average Input Offset Voltage Shift vs
Power Supply Voltage
ΔV_S = 20V (Note 8)
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
I_OS
Input Offset Current
V_CM = 0V
V_IN-CM
Common-Mode Input Voltage Range
CMRR
Z_IN
A_VOL
V_OUTMAX
I_OUT
Common-Mode Rejection
Differential Input Impedance
Common Mode Input Impedance
Open Loop Voltage Gain
Maximum Output Voltage Swing
Output Current
–10V<Vcm<10V
–10V<Vcm<10V
–10V<Vout<10V, R_L = 600Ω
–10V<Vout<10V, R_L = 2kΩ
–10V<Vout<10V, R_L = 10kΩ
R_L = 600Ω
R_L = 2kΩ
R_L = 10kΩ
R_L = 600Ω, V_S = ±17V
I_OUT-CC
Instantaneous Short Circuit Current
0.00003
0.00003
0.00005
55
±20
10
1.2
0.34
2.7
6.4
1.6
3.1
±0.1
0.2
120
118
112
10
0.1
11
+14.1
–13.9
120
30
1000
140
140
140
±13.6
±14.0
±14.1
±26
+53
–42
0.00009
45
±15
% (max)
%
MHz (min)
V/μs (min)
MHz
0.65
4.7
±0.7
110
72
65
(V+) – 2.0
(V-) + 2.0
110
125
μs
μV_RMS
(max)
nV/√Hz
(max)
pA/√Hz
mV (max)
μV/°C
dB (min)
dB
nA (max)
nA/°C
nA (max)
V (min)
dB (min)
kΩ
MΩ
dB (min)
±12.5
V (min)
±23
mA (min)
mA
(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 guarantee specific performance limits. For
guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed 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 guaranteed to National's AOQL (Average Outgoing Quality Level).
4
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