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INA105のメーカーはBurr-Brown Corporationです、この部品の機能は「Precision Unity Gain DIFFERENTIAL AMPLIFIER」です。 |
部品番号 | INA105 |
| |
部品説明 | Precision Unity Gain DIFFERENTIAL AMPLIFIER | ||
メーカ | Burr-Brown Corporation | ||
ロゴ | |||
このページの下部にプレビューとINA105ダウンロード(pdfファイル)リンクがあります。 Total 12 pages
® INA105
Precision Unity Gain
DIFFERENTIAL AMPLIFIER
FEATURES
q CMR 86dB min OVER TEMPERATURE
q GAIN ERROR: 0.01% max
q NONLINEARITY: 0.001% max
q NO EXTERNAL ADJUSTMENTS
REQUIRED
q EASY TO USE
q COMPLETE SOLUTION
q HIGHLY VERSATILE
q LOW COST
q PLASTIC DIP, TO-99 HERMETIC METAL,
AND SO-8 SOIC PACKAGES
DESCRIPTION
The INA105 is a monolithic Gain = 1 differential
amplifier consisting of a precision op amp and on-chip
metal film resistors. The resistors are laser trimmed
for accurate gain and high common-mode rejection.
Excellent TCR tracking of the resistors maintains
gain accuracy and common-mode rejection over
temperature.
The differential amplifier is the foundation of many
commonly used circuits. The INA105 provides this
precision circuit function without using an expensive
precision resistor network. The INA105 is available in
8-pin plastic DIP, SO-8 surface-mount and TO-99
metal packages.
APPLICATIONS
q DIFFERENTIAL AMPLIFIER
q INSTRUMENTATION AMPLIFIER
BUILDING BLOCK
q UNITY-GAIN INVERTING AMPLIFIER
q GAIN-OF-1/2 AMPLIFIER
q NONINVERTING GAIN-OF-2 AMPLIFIER
q AVERAGE VALUE AMPLIFIER
q ABSOLUTE VALUE AMPLIFIER
q SUMMING AMPLIFIER
q SYNCHRONOUS DEMODULATOR
q CURRENT RECEIVER WITH COMPLIANCE
TO RAILS
q 4mA TO 20mA TRANSMITTER
q VOLTAGE-CONTROLLED CURRENT
SOURCE
q ALL-PASS FILTERS
–In 2
25kΩ
+In 3
25kΩ
25kΩ
25kΩ
5 Sense
7 V+
6 Output
4 V–
1 Ref
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
©1985 Burr-Brown Corporation
PDS-617G
Printed in U.S.A. August, 1993
1 Page PIN CONFIGURATIONS
Top View
Ref
1
Tab
8
No Internal
Connection
V+
7
TO-99
–In 2
6 Output
35
+In Sense
4 INA105AM
V– INA105BM
Case internally connected to V–. Make no connection.
Top View
DIP/SOIC
Ref 1
(1)
–In 2
+In 3
V– 4
8 No Internal Connection
7 V+
6 Output
5 Sense
NOTE: (1) Performance grade identifier box for small outline surface mount.
Blank indicates K grade. Part is marked INA105U.
ABSOLUTE MAXIMUM RATINGS
Supply ................................................................................................ ±18V
Input Voltage Range ............................................................................ ±VS
Operating Temperature Range: M .................................. –55°C to +125°C
P, U ................................ –40°C to +85°C
Storage Temperature Range: M ..................................... –65°C to +150°C
P, U ................................. –40°C to +125°C
Lead Temperature (soldering, 10s) M, P ....................................... +300°C
Wave Soldering (3s, max) U .......................................................... +260°C
Output Short Circuit to Common .............................................. Continuous
PACKAGE/ORDERING INFORMATION
PRODUCT
PACKAGE
PACKAGE
DRAWING TEMPERATURE
NUMBER(1)
RANGE
INA105AM
INA105BM
INA105KP
INA105KU
TO-99 Metal
TO-99 Metal
8-Pin Plastic DIP
8-Pin SOIC
001 –40°C to +85°C
001 –40°C to +85°C
006 –40°C to +85°C
182 –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.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate 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.
®
3 INA105
3Pages INA105
2 R1
R2 5
V2
10Ω
3
V3
VO = V3 – V3
Offset Adjustment
Range = ±300µV
R3
R4
1
499kΩ
10Ω
6
VO
+15V
100kΩ
–15V
FIGURE 2. Offset Adjustment.
–In 2
V2
INA105BM
R1 R2
25kΩ
25kΩ
+In 3
V3
R3
25kΩ
R4
25kΩ
5
6
V0
1
V0 = V3 – V2
Gain Error = 0.005%
CMR = 100dB
Nonlinearity = 0.0002%
FIGURE 3. Precision Difference Amplifier.
V1
–In A1
R2
2
INA105
5
R1
R2
3
6
V0
0utput
1
V1 A2
+In
VO = (1 + 2R2/R1) (V2 –V1)
For low source impedance applications, an input stage using OPA27 op
amps will give the best low noise, offset, and temperature drift performance.
At source impedances above about 10kΩ, the bias current noise of the
OPA27 reacting with the input impedance begins to dominate the noise
performance. For these applications, using the OPA111 or dual OPA2111
FET input op amp will provide lower noise performance. For lower cost use
the OPA121 plastic. To construct an electrometer use the OPA128.
A1, A2
OPA27A
OPA111B
OPA128LM
R1
(Ω)
50.5
202
202
R2 GAIN CMRR MAX NOISE AT 1kHz
(Ω) (V/V) (dB)
IB
(nV/√HZ)
2.5k 100
10k 100
10k 100
128 40nA
110 1pA
118 75fA
4
10
38
FIGURE 4. Precision Instrumentation Amplifier.
2
100Ω
1%
V–
100Ω
1%
IIN
0 to 20mA
3
INA105
5
6
V0
0 to 2V
1
FIGURE 5. Current Receiver with Compliance to Rails.
®
INA105
6
6 Page | |||
ページ | 合計 : 12 ページ | ||
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PDF ダウンロード | [ INA105 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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