INA114.pdf 데이터시트 (총 12 페이지) - 파일 다운로드 INA114 데이타시트 다운로드

No Preview Available !

® INA114
INA114
INA114
Precision
INSTRUMENTATION AMPLIFIER
FEATURES
q LOW OFFSET VOLTAGE: 50µV max
q LOW DRIFT: 0.25µV/°C max
q LOW INPUT BIAS CURRENT: 2nA max
q HIGH COMMON-MODE REJECTION:
115dB min
q INPUT OVER-VOLTAGE PROTECTION:
±40V
q WIDE SUPPLY RANGE: ±2.25 to ±18V
q LOW QUIESCENT CURRENT: 3mA max
q 8-PIN PLASTIC AND SOL-16
APPLICATIONS
q BRIDGE AMPLIFIER
q THERMOCOUPLE AMPLIFIER
q RTD SENSOR AMPLIFIER
q MEDICAL INSTRUMENTATION
q DATA ACQUISITION
2 Over-Voltage
VIN (4)
Protection
1
(2)
RG
8
(15)
+ 3 Over-Voltage
VIN (5)
Protection
A1
25k
25k
A2
DIP
DESCRIPTION
The INA114 is a low cost, general purpose instrumen-
tation amplifier offering excellent accuracy. Its versa-
tile 3-op amp design and small size make it ideal for a
wide range of applications.
A single external resistor sets any gain from 1 to 10,000.
Internal input protection can withstand up to ±40V
without damage.
The INA114 is laser trimmed for very low offset voltage
(50µV), drift (0.25µV/°C) and high common-mode
rejection (115dB at G = 1000). It operates with power
supplies as low as ±2.25V, allowing use in battery
operated and single 5V supply systems. Quiescent cur-
rent is 3mA maximum.
The INA114 is available in 8-pin plastic and SOL-16
surface-mount packages. Both are specified for the
–40°C to +85°C temperature range.
V+
7 (13)
INA114
25k
25k
A3
25k
25k
4 (7)
V–
(SOIC)
Feedback
(12)
DIP Connected
Internally
6
(11) VO
5
Ref
(10)
G = 1 + 50k
RG
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1992 Burr-Brown Corporation
PDS-11142D
INA114Printed in U.S.A. March, 1998
®

No Preview Available !

SPECIFICATIONS
ELECTRICAL
At TA = +25°C, VS = ±15V, RL = 2kΩ, unless otherwise noted.
INA114BP, BU
PARAMETER
CONDITIONS
MIN TYP MAX
INPUT
Offset Voltage, RTI
Initial
vs Temperature
vs Power Supply
Long-Term Stability
Impedance, Differential
Common-Mode
Input Common-Mode Range
Safe Input Voltage
Common-Mode Rejection
BIAS CURRENT
vs Temperature
OFFSET CURRENT
vs Temperature
NOISE VOLTAGE, RTI
f = 10Hz
f = 100Hz
f = 1kHz
fB = 0.1Hz to 10Hz
Noise Current
f=10Hz
f=1kHz
fB = 0.1Hz to 10Hz
GAIN
Gain Equation
Range of Gain
Gain Error
Gain vs Temperature
50kResistance(1)
Nonlinearity
OUTPUT
Voltage
Load Capacitance Stability
Short Circuit Current
FREQUENCY RESPONSE
Bandwidth, –3dB
Slew Rate
Settling Time, 0.01%
Overload Recovery
POWER SUPPLY
Voltage Range
Current
TEMPERATURE RANGE
Specification
Operating
θJA
TA = +25°C
TA = TMIN to TMAX
VS = ±2.25V to ±18V
VCM = ±10V, RS = 1k
G=1
G = 10
G = 100
G = 1000
G = 1000, RS = 0
G=1
G = 10
G = 100
G = 1000
G=1
G=1
G = 10
G = 100
G = 1000
IO = 5mA, TMIN to TMAX
VS = ±11.4V, RL = 2k
VS = ±2.25V, RL = 2k
G=1
G = 10
G = 100
G = 1000
VO = ±10V, G = 10
G=1
G = 10
G = 100
G = 1000
50% Overdrive
VIN = 0V
±10 + 20/G ±50 + 100/G
±0.1 + 0.5/G ±0.25 + 5/G
0.5 + 2/G 3 + 10/G
±0.2 + 0.5/G
1010 || 6
1010 || 6
±11 ±13.5
±40
80 96
96 115
110 120
115 120
±0.5
±8
±0.5
±8
±2
±2
15
11
11
0.4
0.4
0.2
18
1 + (50k/RG)
1 10000
±0.01
±0.05
±0.02
±0.4
±0.05
±0.5
±0.5 ±1
±2 ±10
±25 ±100
±0.0001
±0.001
±0.0005
±0.002
±0.0005
±0.002
±0.002
±0.01
±13.5
±10
±1
±13.7
±10.5
±1.5
1000
+20/–15
1
100
10
1
0.3 0.6
18
20
120
1100
20
±2.25
±15
±2.2
±18
±3
–40 85
–40 125
80
T Specification same as INA114BP/BU.
NOTE: (1) Temperature coefficient of the “50k” term in the gain equation.
INA114AP, AU
MIN TYP MAX
UNITS
±25 + 30/G ±125 + 500/G
µV
±0.25 + 5/G ±1 + 10/G
µV/°C
T T µV/V
T µV/mo
T || pF
T || pF
TT
V
TV
75 90
90 106
106 110
106 110
T
T
T
T
dB
dB
dB
dB
±5 nA
pA/°C
±5 nA
pA/°C
T nV/Hz
T nV/Hz
T nV/Hz
T µVp-p
T pA/Hz
T pA/Hz
T pAp-p
T V/V
T T V/V
T T%
T ±0.5 %
T ±0.7 %
T ±2 %
T ±10 ppm/°C
T T ppm/°C
T
±0.002
% of FSR
T
±0.004
% of FSR
T
±0.004
% of FSR
T
±0.02
% of FSR
TT
TT
TT
T
T
V
V
V
pF
mA
T
T
T
T
TT
T
T
T
T
T
MHz
kHz
kHz
kHz
V/µs
µs
µs
µs
µs
µs
TT
T
TV
T mA
T
T
T
T °C
T °C
°C/W
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.
®
INA114
2

No Preview Available !

PIN CONFIGURATIONS
P Package
8-Pin DIP
Top View
RG 1
V–IN 2
V+IN 3
V– 4
8 RG
7 V+
6 VO
5 Ref
U Package
NC 1
RG 2
NC 3
V–IN
V+IN
4
5
NC 6
V– 7
NC 8
SOL-16 Surface-Mount
Top View
16 NC
15 RG
14 NC
13 V+
12 Feedback
11 VO
10 Ref
9 NC
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with ap-
propriate precautions. Failure to observe proper handling and
installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
PACKAGE/ORDERING INFORMATION
PRODUCT
PACKAGE
PACKAGE
DRAWING TEMPERATURE
NUMBER(1)
RANGE
INA114AP
8-Pin Plastic DIP
006 –40°C to +85°C
INA114BP
8-Pin Plastic DIP
006 –40°C to +85°C
INA114AU
SOL-16 Surface-Mount
211
–40°C to +85°C
INA114BU
SOL-16 Surface-Mount
211
–40°C to +85°C
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
ABSOLUTE MAXIMUM RATINGS(1)
Supply Voltage .................................................................................. ±18V
Input Voltage Range .......................................................................... ±40V
Output Short-Circuit (to ground) .............................................. Continuous
Operating Temperature ................................................. –40°C to +125°C
Storage Temperature ..................................................... –40°C to +125°C
Junction Temperature .................................................................... +150°C
Lead Temperature (soldering, 10s) ............................................... +300°C
NOTE: (1) Stresses above these ratings may cause permanent damage.
®
3 INA114

No Preview Available !

TYPICAL PERFORMANCE CURVES
At TA = +25°C, VS = ±15V, unless otherwise noted.
GAIN vs FREQUENCY
1k
100
10
1
10
100
1k
10k 100k
1M
Frequency (Hz)
COMMON-MODE REJECTION vs FREQUENCY
140
G = 100, 1k
120
G = 10
100
G = 1k
80 G = 100
60
G = 10
40
G=1
20
0
10 100
1k
10k 100k
1M
Frequency (Hz)
INPUT COMMON-MODE VOLTAGE RANGE
vs OUTPUT VOLTAGE
15
10 +LiOmuittepdutbSy wAi1ng
5
VD/2
VD/2
+
+
+ OLiumtpiteudt SbwyiAn2g
VO
0 VCM
(Any Gain)
–5 A3 – Output
Swing Limit
–10 – OLiumtpituetdSbwyinAg2
–15
–15 –10
–5
0
A3 + Output
Swing Limit
L–imOiutetpdubt ySwAi1ng
5 10
Output Voltage (V)
15
140
120
100
80
60
40
20
0
10
POSITIVE POWER SUPPLY REJECTION
vs FREQUENCY
G = 1000
G = 100
G = 10
G=1
100
1k
10k 100k
1M
Frequency (Hz)
140
120
100
80
60
40
20
0
10
NEGATIVE POWER SUPPLY REJECTION
vs FREQUENCY
G = 100
G = 1000
G = 10
G=1
100
1k
10k 100k
1M
Frequency (Hz)
INPUT-REFERRED NOISE VOLTAGE
vs FREQUENCY
1k
100
10
1
1
G=1
G = 100, 1000
G = 10
G = 1000
BW Limit
10 100 1k
Frequency (Hz)
10k
®
INA114
4

No Preview Available !

TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°C, VS = ±15V, unless otherwise noted.
1200
1000
800
600
400
200
0
1
SETTLING TIME vs GAIN
0.01%
0.1%
10 100
Gain (V/V)
1000
6
4
2
0
–2
–4
–6
0
OFFSET VOLTAGE WARM-UP vs TIME
G 100
15 30 45 60 75 90 105 120
Time from Power Supply Turn-on (s)
INPUT BIAS AND INPUT OFFSET CURRENT
vs TEMPERATURE
2
1
±IB
0
IOS
–1
–2
–40
–15 10
35
Temperature (°C)
60
85
INPUT BIAS CURRENT
vs DIFFERENTIAL INPUT VOLTAGE
3
2
1
0
–1 G = 1
–2
–3
–45
G = 10
G = 100
G = 1000
–30 –15
0
15 30
Differential Overload Voltage (V)
45
INPUT BIAS CURRENT
vs COMMON-MODE INPUT VOLTAGE
3
Both Inputs
2 |Ib1| + |Ib2|
One Input
1
0
Over-Voltage
Protection
–1
Normal
Operation
Over-Voltage
Protection
–2 One Input
–3
–45
Both Inputs
–30 –15
0
15
Common-Mode Voltage (V)
30
45
32
28
24
20
16
12
8
4
0
10
MAXIMUM OUTPUT SWING vs FREQUENCY
G = 1, 10
G = 100
G = 1000
100 1k 10k 100k
Frequency (Hz)
1M
®
5 INA114