|
OPA1641_1004 Datasheet, PDF (3/22 Pages) Texas Instruments – High-Performance, JFET-Input AUDIO OPERATIONAL AMPLIFIERS | |||
|
◁ |
www.ti.com
OPA1641
OPA1642
OPA1644
SBOS484A â DECEMBER 2009 â REVISED APRIL 2010
ELECTRICAL CHARACTERISTICS: VS = +4.5V to +36; ±2.25V to ±18V
At TA = +25°C, RL = 2k⦠connected to midsupply, VCM = VOUT = midsupply, unless otherwise noted.
OPA1641, OPA1642, OPA1644
PARAMETER
CONDITIONS
MIN
TYP
MAX
AUDIO PERFORMANCE
Total Harmonic Distortion +
Noise
THD+N
G = +1, f = 1kHz, VO = 3VRMS
0.00005
â126
Intermodulation Distortion
IMD
G = +1, VO = 3VRMS
SMPTE/DIN Two-Tone, 4:1 (60Hz and 7kHz)
0.00004
â128
DIM 30 (3kHz square wave and 15kHz sine wave)
0.00008
â122
CCIF Twin-Tone (19kHz and 20kHz)
0.00007
â123
FREQUENCY RESPONSE
Gain-Bandwidth Product
GBW
G = +1
11
Slew Rate
SR
G = +1
20
Full-Power Bandwidth(1)
VO = 1VP
3.2
Overload Recovery Time(2)
G = â10
600
Channel Separation (Dual and Quad)
f = 1kHz
â126
NOISE
Input Voltage Noise
f = 20Hz to 20kHz
4.3
Input Voltage Noise Density
en
f = 10Hz
8
f = 100Hz
5.8
f = 1kHz
5.1
Input Current Noise Density
In
f = 1kHz
0.8
OFFSET VOLTAGE
Input Offset Voltage
vs Power Supply
INPUT BIAS CURRENT
VOS
PSRR
VS = ±18V
VS = ±2.25V to ±18V
1
3.5
0.14
2
Input Bias Current
IB
Input Offset Current
IOS
INPUT VOLTAGE RANGE
VCM = 0V
VCM = 0V
±2
±20
±2
±20
Common-Mode Voltage Range
Common-Mode Rejection Ratio
INPUT IMPEDANCE
VCM
CMRR
VCM = (Vâ) â 0.1V to (V+) â 3.5V, VS = ±18V
(Vâ)-0.1
(V+)â3.5
120
126
Differential
1013 || 8
Common-Mode
VCM = (Vâ) â 0.1V to (V+) â 3.5V
1013 || 6
OPEN-LOOP GAIN
Open-Loop Voltage Gain
AOL
(Vâ) + 0.2V ⤠VO ⤠(V+) â 0.2V, RL = 10kΩ
(Vâ) + 0.35V ⤠VO ⤠(V+) â 0.35V, RL = 2kΩ
120
134
114
126
(1) Full power bandwidth = SR/(2p à VP), where SR = slew rate.
(2) See Figure 21 and Figure 22.
UNIT
%
dB
%
dB
%
dB
%
dB
MHz
V/ms
MHz
ns
dB
mVPP
nV/âHz
nV/âHz
nV/âHz
fA/âHz
mV
mV/V
pA
pA
V
dB
⦠|| pF
⦠|| pF
dB
dB
Copyright © 2009â2010, Texas Instruments Incorporated
3
Product Folder Link(s): OPA1641 OPA1642 OPA1644
|
▷ |