參數(shù)資料
型號(hào)： INA145
元件分類： 差分放大器
英文描述： Programmable Gain DIFFERENCE AMPLIFIER
中文描述： 可編程增益差分放大器
文件頁(yè)數(shù)： 2/11頁(yè)
文件大?。?/td> 127K
代理商： INA145
2
INA145
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
INA145UA
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE, V
O
Input Offset Voltage
vs Temperature
vs Power Supply
vs Time
Offset Voltage, V
01
RTI
(1, 2)
V
CM
= V
O
= 0V
V
OS
±
0.2
±
1
mV
V
OS
/
T
PSRR
See Typical Curve
±
20
±
0.3
±
0.4
V
S
=
±
1.35V to
±
18V
±
60
μ
V/V
μ
V/mo
mV
RTI
(1, 2)
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection
Over Temperature
V
CM
(V
IN
+) – (V
IN
–) = 0V, V
O
= 0V
V
CM
= 2(V–) to 2(V+) – 2V, R
S
= 0
V
S
=
±
15V
2(V–)
76
70
2(V+) –2
V
dB
dB
CMRR
86
80
INPUT BIAS CURRENT
(2)
Bias Current
Offset Current
V
CM
= V
S
/2
I
B
±
50
±
5
nA
nA
I
OS
INPUT IMPEDANCE
Differential (non-inverting input)
Differential (inverting input)
Common-Mode
80
27
40
k
k
k
NOISE
Voltage Noise, f = 0.1Hz to 10Hz
Voltage Noise Density, f = 1kHz
GAIN
Gain Equation
Initial
(1)
Gain Error
vs Temperature
RTI
(1, 3)
2
90
μ
Vp-p
nV/
√
Hz
e
n
G = 1 to 1000
G = 1 + R
G2
/R
G1
1
±
0.01
±
2
±
0.01
±
2
±
0.0002
V/V
V/V
%
R
L
= 100k
, V
O
= (V–)+0.15 to (V+)–1, G = 1
R
L
= 100k
, V
= (V–)+0.25 to (V+)–1, G = 1
R
L
= 10k
, V
O
= (V–)+0.3 to (V+)–1.25, G = 1
R
L
= 10k
, V
O
= (V–)+0.5 to (V+)–1.25, G = 1
R
L
= 10k
, V
O
= (V–)+0.3 to (V+)–1.25, G = 1
±
0.1
±
10
±
0.1
±
10
±
0.005
ppm/
°
C
%
ppm/
°
C
% of FS
vs Temperature
Nonlinearity
FREQUENCY RESPONSE
Small Signal Bandwidth
G = 1
G = 10
500
50
0.45
40
90
40
kHz
kHz
V/
μ
s
μ
s
μ
s
μ
s
Slew Rate
Settling Time, 0.1%
G = 1, 10V Step
G = 1, 10V Step
50% Input Overload
0.01%
Overload Recovery
OUTPUT, V
Voltage Output
Over Temperature
R
L
= 100k
, G = 1
R
L
= 100k
, G = 1
R
L
= 10k
, G = 1
R
= 10k
, G = 1
Continuous to Common
Stable Operation
(V–) + 0.15
(V–) + 0.25
(V–) + 0.3
(V–) + 0.5
(V+) – 1
(V+) – 1
(V+) – 1.25
(V+) – 1.25
V
V
V
V
Over Temperature
Short-Circuit Current
Capacitive Load
±
15
1000
mA
pF
POWER SUPPLY
Specified Voltage Range, Dual Supplies
Operating Voltage Range
Quiescent Current
Over Temperature
±
2.25
±
1.35
±
18
±
18
±
700
±
800
V
V
μ
A
μ
A
V
IN
= 0, I
O
= 0
±
570
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance
–40
–55
–55
+85
+125
+125
°
C
°
C
°
C
θ
JA
150
°
C/W
NOTES: (1) Referred to input pins (V
+ and V
–), Gain = 1V/V. Specified with 10k
in feedback of A2. (2) Input offset voltage specification includes effects of amplifier’s
input bias and offset currents. (3) Includes effects of input bias current noise and thermal noise contribution of resistor network.
SPECIFICATIONS: V
S
=
±
2.25V to
±
18V
Boldface
limits apply over the specified temperature range,
T
A
= –40
°
C to +85
°
C
At T
A
= +25
°
C, G = 1, R
L
= 10k
connected to ground and ref pin connected to ground unless otherwise noted.
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