INA143/INA2143 [BB]
INA143. INA2143 - High-Speed. Precision. G = 10 or G = 0.1 DIFFERENCE AMPLIFIERS ; INA143 。 INA2143 - 高速。精度。 G = 10或G = 0.1差动放大器\n
| 型号： | INA143/INA2143 |
| 厂家： | 
BURR-BROWN CORPORATION |
| 描述： | INA143. INA2143 - High-Speed. Precision. G = 10 or G = 0.1 DIFFERENCE AMPLIFIERS
|
| 文件： | 总10页 (文件大小：147K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
INA143
IN
A
2143
INA2143
INA143
For most current data sheet and other product
information, visit www.burr-brown.com
High-Speed, Precision, G = 10 or G = 0.1
DIFFERENCE AMPLIFIERS
FEATURES
APPLICATIONS
● DESIGNED FOR LOW COST
● G = 10V/V or G = 0.1V/V
● SINGLE, DUAL VERSIONS
● DIFFERENTIAL INPUT AMPLIFIER
BUILDING BLOCK
● DIFF IN/DIFF OUT AMPLIFIER
● GAIN = –10 INVERTING AMPLIFIER
● GAIN = +10 NON-INVERTING AMPLIFIER
● GAIN = +11 NON-INVERTING AMPLIFIER
● SYNCHRONOUS DEMODULATOR
● CURRENT/DIFFERENTIAL LINE RECEIVER
● VOLTAGE-CONTROLLED CURRENT SOURCE
● BATTERY POWERED SYSTEMS
● LOW OFFSET VOLTAGE:
±250µV max, ±3µV/°C max
● LOW GAIN ERROR: 0.01%
● HIGH SLEW RATE: 5V/µs
● FAST SETTLING TIME: 9µs to 0.01%
● LOW QUIESCENT CURRENT: 950µA
● WIDE SUPPLY RANGE: ±2.25V to ±18V
● SO-8 and SO-14 PACKAGES
● LOW COST AUTOMOTIVE
The differential amplifier is the foundation of many
commonly used circuits. The low cost INA143 and
INA2143 provide this precision circuit function without
using an expensive precision network.
DESCRIPTION
The INA143 and INA2143 are high slew rate, gain of
10V/V or 0.1V/V difference amplifiers consisting of a
precision op amp with a precision resistor network. The
on-chip resistors are laser trimmed for accurate gain and
high common-mode rejection. Excellent TCR tracking
of the resistor maintains gain accuracy and common-
mode rejection over temperature. They operate over a
wide supply range, ±2.25V to ±18V (+4.5V to +36V
single supply), and input common-mode voltage range
extends beyond the positive and negative supply rails.
The single version, INA143, package is the SO-8 surface
mount. The dual version, INA2143, package is the SO-14
surface mount. Both are specified for operation over the
extended industrial temperature range, –40°C to +85°C.
Operation is from –55°C to +125°C.
V+
11
10kΩ
100kΩ
2
12
13
–In A
Sense A
Out A
V+
7
A
10kΩ
100kΩ
10kΩ
10kΩ
100kΩ
2
5
6
1
3
6
14
10
–In
Sense
Output
+In A
–In B
Ref A
100kΩ
Sense B
10kΩ
100kΩ
9
8
Out B
Ref B
B
3
+In
Ref
INA143
10kΩ
100kΩ
5
4
+In B
V–
INA2143
4
V–
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/
•
•
Cable: BBRCORP Telex: 066-6491
•
•
FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1999 Burr-Brown Corporation
PDS-1531A
Printed in U.S.A. June, 1999
SPECIFICATIONS: VS = ±15V
At TA = +25°C, VS = ±15V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
INA143U
INA143UA
INA2143U
INA2143UA
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE(1)
Initial(1)
vs Temperature
vs Power Supply
vs Time
RTI
VCM = 0V
±100
±1
±5
0.2
140
±250
±3
±20
✻
±500
±30
µV
µV/°C
µV/V
µV/√mo
dB
See Typical Curve
VS = ±2.25V to ±18V
✻
✻
Channel Separation (dual)
dc
INPUT IMPEDANCE(3)
Differential
Common-Mode
20
55
✻
✻
kΩ
kΩ
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Positive
Negative
Common-Mode Rejection Ratio
RTI
VO = 0V
VO = 0V
VCM = –14.85V to 14.85V, RS = 0Ω
1.1[(V+)–1.5] 1.1[(V+) –1]
1.1[(V–)+1.5] 1.1[(V–) +1]
✻
✻
80
✻
✻
✻
V
V
dB
86
96
OUTPUT VOLTAGE NOISE(3)
f = 0.1Hz to 10Hz
f = 10Hz
f = 100Hz
f = 1kHz
RTI
1
✻
✻
✻
✻
µVp-p
nV/√Hz
nV/√Hz
nV/√Hz
45
30
27
GAIN
Initial
Error
vs Temperature
Nonlinearity
10
±0.01
±1
✻
✻
✻
V/V
%
ppm/°C
% of FS
VO = –14V to +13.5V
VO = –14V to +13.5V
±0.05
±10
±0.001
±0.1
✻
±0.002
±0.0001
✻
OUTPUT
Voltage Output
Positive
Gain Error < 0.1%
RL = 10kΩ to Ground
RL = 10kΩ to Ground
RL = 100kΩ to Ground
RL = 100kΩ to Ground
Continuous-to-Common
(V+) –1.5 (V+) –1.3
✻
✻
✻
✻
✻
✻
✻
✻
V
V
V
V
mA
pF
Negative
Positive
Negative
(V–) +1
(V–) +0.8
(V+) –0.8
(V–) +0.3
–25, +32
1000
Current Limit
Capacitive Load (stable operation)
FREQUENCY RESPONSE
Small-Signal Bandwidth
Slew Rate
Settling Time: 0.1%
0.01%
–3dB
0.15
✻
✻
✻
✻
✻
MHz
V/µs
µs
µs
µs
5
6
9
6
VO = 10V Step, CL = 100pF
VO = 10V Step, CL = 100pF
50% Overdrive
Overload Recovery Time
POWER SUPPLY
Rated Voltage
±15
✻
V
Operating Voltage Range
Dual Supplies
Single Supply
±2.25
+4.5
±18
+36
±1.2
✻
✻
✻
✻
✻
V
V
mA
Quiescent Current (per amplifier)
IO = 0
±0.95
✻
TEMPERATURE RANGE
Specification
Operation
–40
–55
–55
+85
+125
+125
✻
✻
✻
✻
✻
✻
°C
°C
°C
Storage
Thermal Resistance
SO-8 Surface Mount
SO-14 Surface Mount
θJA
150
100
✻
✻
°C/W
°C/W
✻ Specifications the same as INA143U, INA2143U.
NOTES: (1) Includes the effects of amplifier’s input bias and offset currents. (2) Internal resistors are ratio matched but have ±20% absolute value. (3) Includes
effects of amplifier’s input current noise and thermal noise contribution of resistor network.
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.
®
2
INA143, INA2143
SPECIFICATIONS: VS = ±5V
At TA = +25°C, VS = ±5V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
INA143U
INA143UA
INA2143U
INA2143UA
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE(1)
Initial(1)
vs Temperature
RTI
VCM = 0V
±200
±1
±500
✻
✻
±750
µV
µV/°C
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Positive
Negative
Common-Mode Rejection Ratio
RTI
VO = 0V
VO = 0V
VCM = –3.85V to +3.85V, RS = 0Ω
1.1[(V+)–1.5] 1.1[(V+) –1]
1.1[(V–)+1.5] 1.1[(V–) +1]
✻
✻
80
✻
✻
✻
V
V
dB
86
96
GAIN
Initial
Gain Error
Nonlinearity
10
±0.01
±0.0001
✻
✻
✻
V/V
%
% of FS
VO = –4V to +3.5V
VO = –4V to +3.5V
±0.05
±0.001
±0.1
±0.002
OUTPUT
Voltage Output
Positive
Gain Error < 0.1%
RL = 10kΩ to Ground
RL = 10kΩ to Ground
RL = 100kΩ to Ground
RL = 100kΩ to Ground
(V+) –1.5 (V+)–1.3
✻
✻
✻
✻
✻
✻
V
V
V
V
Negative
Positive
Negative
(V–) +1
(V–)+0.8
(V+)–0.8
(V–)+0.3
POWER SUPPLY
Rated Voltage
+5
✻
V
Operating Voltage Range
Dual Supplies
Single Supply
±2.25
+4.5
±18
+36
±1.2
✻
✻
✻
✻
✻
V
V
mA
Quiescent Current (per amplifier)
IO = 0
±0.92
✻
✻ Specifications the same as INA143U, INA2143U.
NOTES: (1) Includes the effects of amplifier’s input bias and offset currents.
ABSOLUTE MAXIMUM RATINGS(1)
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.
Supply Voltage, V+ to V– .................................................................... 36V
Input Signal (G = 10), Voltage ..................................................... 1.1 • VS
Current ........................................................ 0.5mA
Input Signal (G = 0.1), Voltage ..................................................... 11 • VS
Current ....................................................... 0.5mA
Output Short-Circuit (to ground)(2) .......................................... Continuous
Operating Temperature .................................................. –55°C to +125°C
Storage Temperature .....................................................–55°C to +125°C
Junction Temperature .................................................................... +150°C
Lead Temperature (soldering, 10s)............................................... +300°C
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.
NOTES: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability. (2) One channel per package.
PACKAGE/ORDERING INFORMATION
PACKAGE
SPECIFIED
DRAWING
NUMBER(1)
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER(2)
TRANSPORT
MEDIA
PRODUCT
PACKAGE
Single
INA143U
SO-8 Surface Mount
182
"
–40°C to +85°C
INA143U
INA143U
INA143U/2K5
INA143UA
Rails
"
INA143UA
"
"
"
"
Tape and Reel
Rails
SO-8 Surface Mount
182
–40°C to +85°C
INA143UA
"
"
"
"
INA143UA/2K5
Tape and Reel
Dual
INA2143U
SO-14 Surface Mount
235
"
–40°C to +85°C
INA2143U
INA2143U
INA2143U/2K5
INA2143UA
Rails
"
"
"
"
Tape and Reel
Rails
INA2143UA
SO-14 Surface Mount
235
–40°C to +85°C
INA2143UA
"
"
"
"
"
INA2143UA/2K5
Tape and Reel
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/) are
available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “INA143UA/2K5” will get a single
2500-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
®
3
INA143, INA2143
PIN CONFIGURATIONS
Top View
SO-8
Top View
SO-14
INA2143
1
2
3
4
5
6
7
14
13
12
11
NC
Ref A
Out A
Sense A
V+
INA143
–In A
+In A
V–
1
2
3
4
NC
Ref
–In
+In
V–
8
7
6
5
A
V+
Output
Sense
+In B
–In B
NC
10 Sense B
B
9
8
Out B
Ref B
NC = No Connection
NC = No Connection
®
4
INA143, INA2143
TYPICAL PERFORMANCE CURVES
At TA = +25°C, VS = ±15V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
GAIN vs FREQUENCY
COMMON-MODE REJECTION vs FREQUENCY
5
0
100
90
80
70
60
50
40
–5
–10
–15
–20
VS = ±15V or ±5V
VS = ±15V or ±5V
10k
100k
1M
100
1k
10k
100k
1M
Frequency (Hz)
Frequency (Hz)
POWER SUPPLY REJECTION vs FREQUENCY
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
VS = ±15V
32
28
24
20
16
12
8
120
100
80
–PSRR
60
VS = ±5V
+PSRR
40
4
20
0
1
10
100
1k
10k
100k
10k
100k
1M
Frequency (Hz)
Frequency (Hz)
INPUT COMMON-MODE VOLTAGE
vs OUTPUT VOLTAGE
TOTAL HARMONIC DISTORTION+NOISE
vs FREQUENCY
20
15
0.1
VS = ±15V
500kHz Filter
10
5
0
0.01
–5
–10
–15
–20
VS = ±5V
0.001
–15
–10
–5
0
5
10
15
20
100
1k
10k 20k
Output Voltage (V)
Frequency (Hz)
®
5
INA143, INA2143
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°C, VS = ±15V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
0.1Hz TO 10Hz PEAK-TO-PEAK
VOLTAGE NOISE
VOLTAGE NOISE DENSITY vs FREQUENCY
100
10
1
10
100
1k
10k
500µs/div
Frequency (Hz)
QUIESCENT CURRENT vs TEMPERATURE
Per Amplifier
SLEW RATE vs TEMPERATURE
1400
1300
1200
1100
1000
900
7
6
5
4
3
VS = ±15V
VS = ±5V
–SR
+SR
800
700
–75
–50
–25
0
25
50
75
100
125
–75
–50
–25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
SHORT-CIRCUIT CURRENT vs TEMPERATURE
VS = ±15V
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
40
35
30
25
20
15
V+
(V+) –5
(V+) –10
0
–40°C
VS = ±5V
+ISC
25°C
85°C
–ISC
85°C
25°C
(V–) +10
(V–) +5
(V–)
+ISC
–ISC
–40°C
±30
0
±5
±10
±15
±20
±25
±35
–75
–50
–25
0
25
50
75
100
125
Output Current (mA)
Temperature (°C)
®
6
INA143, INA2143
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°C, VS = ±15V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
OFFSET VOLTAGE PRODUCTION DISTRIBUTION
S = ±15V
OFFSET VOLTAGE PRODUCTION DISTRIBUTION
S = ±5V
V
V
30
25
20
15
10
5
20
18
16
14
12
10
8
Typical production
distribution of
packaged units.
Singles and duals
included.
Typical production
distribution of
packaged units.
Singles and duals
included.
6
4
2
0
0
Offset Voltage (µV)
Offset Voltage (µV)
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
VS = ±15V
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
VS = ±5V
60
50
40
30
20
10
0
60
50
40
30
20
10
0
Typical production
Typical production
distribution of
packaged units.
Singles and duals
included.
distribution of
packaged units.
Singles and duals
included.
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
Offset Voltage Drift (µV/°C)
Offset Voltage Drift (µV/°C)
SETTLING TIME vs CAPACITIVE LOAD
CHANNEL SEPARATION vs FREQUENCY
20
15
10
5
150
140
130
120
110
G = 10
G = 0.1
0.01%, VS = ±15V
0.01%, VS = ±15V
0.01%, VS = ±5V
0.1%, VS = ±15V
INA2143
0
0
500
1000
1500
100
1k
10k
100k
Capacitive Load (pF)
Frequency (Hz)
®
7
INA143, INA2143
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°C, VS = ±15V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
LARGE-SIGNAL STEP RESPONSE
SMALL-SIGNAL STEP RESPONSE
CL = 100pF
CL = 500pF
CL = 1500pF
25µs/div
2.5µs/div
®
8
INA143, INA2143
throughout the full operating voltage range. Parameters which
vary significantly with operating voltage are shown in the
Typical Performance Curves.
APPLICATIONS INFORMATION
The INA143 and INA2143 are high-speed difference ampli-
fiers suitable for a wide range of general-purpose applica-
tions. Figure 1 shows the basic G = 10 configuration. The
input and feedback resistors can be reversed to achieve
G = 0.1, as shown in Figure 2. For applications requiring
G = 1, the INA133 and INA2133 are recommended.
OFFSET VOLTAGE TRIM
The INA143 and INA2143 are laser trimmed for low offset
voltage and drift. Most applications require no external offset
adjustment. Figure 3 shows an optional circuit for trimming
the output offset voltage. The output is referred to the output
reference terminal (pin 1), which is normally grounded. A
voltage applied to the Ref terminal will be summed with the
output signal. This can be used to null offset voltage as
shown in Figure 3. The source impedance of a signal applied
to the Ref terminal should be less than 10Ω to maintain good
common-mode rejection.
Decoupling capacitors are strongly recommended for appli-
cations with noisy or high impedance power supplies. The
capacitors should be placed close to the device pins as
shown in Figure 1. All circuitry is completely independent
in the dual version assuring lowest crosstalk and normal
behavior when one amplifier is overdriven or short-cir-
cuited.
As shown in Figure 1, the differential input signal is con-
nected to pins 2 and 3. The source impedances connected to
the inputs must be nearly equal to assure good common-
mode rejection. A 5Ω mismatch in source impedance will
degrade the common-mode rejection of a typical device to
approximately 86dB (RTI). If the source has a known
impedance mismatch, an additional resistor in series with
the opposite input can be used to preserve good common-
mode rejection.
INA143
R2
100kΩ
R1
10kΩ
–In
V2
5
2
6
The INA143’s internal resistors are accurately ratio trimmed
to match. That is, R1/R2 and R3/R4 are trimmed to equal 0.1.
However, the absolute values may not be equal (R1 + R2 may
be slightly different than R3 + R4). Thus, large series resistors
on the input (greater than 100Ω), even if well matched, will
degrade common-mode rejection.
VO = 0.1 (V3 – V2)
R4
100kΩ
R3
10kΩ
+In
V3
3
1
FIGURE 2. G = 0.1 Difference Amplifier.
V–
V+
1µF
1µF
G = 10
4
7
INA143
INA143
R1
R2
10kΩ
100kΩ
R1
10kΩ
R2
100kΩ
2
5
V2
–In
V2
2
5
6
6
VO
R3
10kΩ
V
O = 10 (V3 – V2)
10Ω
3
R3
R4
V3
10kΩ
100kΩ
+In
V3
1
3
R4
100kΩ
Compensates
+15V
for impedance at
pin 1—see text.
1
499kΩ
100kΩ
FIGURE 1. G = 10 Basic Power Supply and Signal Connections.
V
O = 10 (V3 – V2)
100Ω
Offset Adjustment
OPERATING VOLTAGE
Range = ±3mV
–15V
The INA143 and INA2143 operate from single (+4.5V to
+36V) or dual (±2.25V to ±18V) supplies with excellent
performance. Specifications are production tested with ±5V
and ±15V supplies. Most behavior remains unchanged
FIGURE 3. Offset Adjustment.
®
9
INA143, INA2143
INA143
V1
A1
–In
INA143
10Ω
10kΩ
100kΩ
V1
10kΩ
100kΩ
2
5
6
1
2
5
6
1
Gain
Adjust
R2
200Ω
VO
R1
VO
R2
10Ω
10kΩ
100kΩ
V2
10kΩ
100kΩ
3
CMR
3
Adjust
200Ω
To eliminate adjustment interactions,
first adjust gain with V2 grounded.
A2
V0 = 10 (1 + 2R2 /R1) (V2 – V1)
V2
+In
FIGURE4.DifferenceAmplifierwithGainandCMRAdjust.
The INA143 can be combined with op amps to form a complete instrumenta-
tion amplifier with specialized performance characteristics. Burr-Brown offers
many complete high performance IAs. Products with related performances
are shown at the right in the table below.
INA143
10kΩ
100kΩ
SIMILAR COMPLETE
BURR-BROWN IA
2
5
6
A1, A2
FEATURE
V2
OPA2227
OPA129
OPA2277
OPA2130
OPA2234
OPA2237
Low Noise
INA103
Ultra Low Bias Current (fA)
Low Offset Drift, Low Noise
Low Power, FET-Input (pA)
Single Supply, Precision, Low Power
Single Supply, Low Power, MSOP-8
INA116
VO = –10 • V2
INA114, INA128
INA121
10kΩ
100kΩ
INA122, INA118
INA122, INA126
3
1
FIGURE 7. Precision Instrumentation Amplifier.
Gain Error = 0.05% maximum
Nonlinearity = 0.001% maximum
Gain Drift = 1ppm/°C
INA143
R1
R2
10kΩ
100kΩ
2
5
6
FIGURE 5. Precision G = –10 Inverting Amplifier.
R4
100kΩ
VO = V1 + 10 • V3
V1
V3
1
3
INA143
R3
10kΩ
R1
R2
10kΩ
100kΩ
2
1
5
6
R4
100kΩ
FIGURE 8. Precision Summing Amplifier.
VO = VIN
VIN
INA143
±55V
Without
Damage
R3
10kΩ
10kΩ
100kΩ
2
5
6
3
V
O = 11 • VIN
100kΩ
10kΩ
1
3
VIN
Thiscircuitfollowsan11/1dividerwithagainof11foranoverallgainofunity.
With an 11/1 divider, the input signal can exceed 55V without damage as
long as input current is less than 0.5mA.
Gain Error =
0.05% maximum
FIGURE 6. Voltage Follower with Input Protection.
FIGURE 9. Precision G = 11 Buffer.
®
10
INA143, INA2143
相关型号：
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