OPA1641 Datasheet, PDF (6/31 Pages) Texas Instruments – High-Performance, JFET-Input AUDIO OPERATIONAL AMPLIFIERS

OPA1641, OPA1642, OPA1644
SBOS484C – DECEMBER 2009 – REVISED DECEMBER 2015
6.5 Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
AUDIO PERFORMANCE
THD+N Total harmonic distortion + noise G = +1, f = 1 kHz, V_O = 0 3 V_RMS
IMD
Intermodulation distortion
G = +1, V_O = 3 V_RMS
SMPTE/DIN Two-Tone, 4:1
(60 Hz and 7k Hz)
DIM 30 (3 kHz square wave and
15 kHz sine wave)
CCIF Twin-Tone
(19 kHz and 20 kHz)
FREQUENCY RESPONSE
GBW
Gain-bandwidth product
G=1
SR
Slew rate
Full-power bandwidth⁽¹⁾
Overload recovery time⁽²⁾
G=1
V_O = 1V_P
G = –10
Channel separation (dual and quad) f = 1 kHz
NOISE
Input voltage noise
f = 20 Hz to 20 kHz
f = 10 Hz
e_n
Input voltage noise density
f = 100 Hz
f = 1 kHz
I_n
Input current noise density
OFFSET VOLTAGE
f = 1 kHz
V_OS
PSRR
Input offset voltage
Vs power supply
INPUT BIAS CURRENT
V_S = ±18 V
V_S = ±2.25 V to ±18 V
I_B
Input bias current
I_OS
Input offset current
INPUT VOLTAGE RANGE
V_CM = (V–) – 0.1 V to (V+) – 3.5 V,
V_S = ±18 V
V_CM
CMRR
Common-mode voltage range
Common-mode rejection ratio
INPUT IMPEDANCE
V_CM = (V–) – 0.1 V to (V+) – 3.5V,
V_S = ±18 V
Differential
Common-mode
OPEN-LOOP GAIN
V_CM = (V–) – 0.1 V to (V+) – 3.5 V
A_OL
Open-loop voltage gain
(V–) + 0.2 V ≤ V_O ≤ (V+) – 0.2 V,
R_L = 10 kΩ
(V–) + 0.35 V ≤ V_O ≤ (V+) – 0.35 V,
R_L = 2 kΩ
(1) Full power bandwidth = SR/(2π × V_P), where SR = slew rate.
(2) See Figure 19 and Figure 20.
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MIN
TYP
MAX UNIT
0.00005%
–126
dB
0.00004%
–128
dB
0.00008%
–122
dB
0.00007%
–123
dB
11
20
3.2
600
–126
MHz
V/μs
MHz
ns
dB
f = 10 Hz
f = 100 Hz
f = 1 kHz
5.1
0.8
μV_PP
nV/√Hz
nV/√Hz
nV/√Hz
fA/√Hz
1
3.5
mV
0.14
2 μV/V
(V–)–0.1
120
(V+)–3.5
V
126
dB
(V–)–0.1
120
(V+)–3.5
V
126
dB
10¹³ || 8
10¹³ || 6
Ω || pF
Ω || pF
120
134
dB
114
126
dB
6
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