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參數(shù)資料
| 型號： | CA3280E |
| 廠商： | Intersil |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP TRANSCND DUAL 9MZ 16DIP |
| 標準包裝： | 25 |
| 放大器類型： | 跨導(dǎo) |
| 電路數(shù)： | 2 |
| 轉(zhuǎn)換速率： | 125 V/µs |
| 增益帶寬積： | 9MHz |
| 電流 - 輸入偏壓： | 1.8µA |
| 電壓 - 輸入偏移： | 700µV |
| 電流 - 電源： | 2mA |
| 電流 - 輸出 / 通道： | 650µA |
| 電壓 - 電源，單路/雙路(±)： | ±2 V ~ 15 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 16-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 16-PDIP |
| 包裝： | 管件 |
| 其它名稱： | CA3280 |
1
CA3280, CA3280A
Dual, 9MHz, Operational
Transconductance Amplifier (OTA)
The CA3280 and CA3280A types consist of two variable
operational amplifiers that are designed to substantially reduce
the initial input offset voltage and the offset voltage variation
with respect to changes in programming current. This design
results in reduced “AGC thump,” an objectionable characteristic
of many AGC systems. Interdigitation, or crosscoupling, of
critical portions of the circuit reduces the amplifier dependence
upon thermal and processing variables.
The CA3280 has all the generic characteristics of an
operational voltage amplifier except that the forward transfer
characteristics is best described by transconductance rather
than voltage gain, and the output is current, not voltage. The
magnitude of the output current is equal to the product of
transconductance and the input voltage. This type of
operational transconductance amplifier was first introduced in
1969, and it has since gained wide acceptance as a gateable,
gain controlled building block for instrumentation and audio
applications, such as linearization of transducer outputs,
standardization of widely changing signals for data processing,
multiplexing, instrumentation amplifiers operating from the
nanopower range to high current and high speed comparators.
For additional application information on this device and on
OTAs in general, please refer to Application Notes: AN6818,
AN6668, and AN6077.
Pinout
CA3280 (PDIP)
TOP VIEW
Ordering Information
Features
Low Initial Input Offset Voltage: 500
V (Max) (CA3280A)
Low Offset Voltage Change vs IABC: <500V (Typ)
for All Types
Low Offset Voltage Drift: 5
V/oC (Max) (CA3280A)
Excellent Matching of the Two Amplifiers for All
Characteristics
Internal Current-Driven Linearizing Diodes Reduce the
External Input Current to an Offset Component
Flexible Supply Voltage Range . . . . . . . . . .
±2V to ±15V
Applications
Voltage Controlled Amplifiers
Voltage Controlled Oscillators
Multipliers
Demodulators
Sample and Hold
Instrumentation Amplifiers
Function Generators
Triangle Wave-to-Sine Wave Converters
Comparators
Audio Preamplifier
Functional Diagram
PART NUMBER
TEMP.
RANGE (oC)
PACKAGE
PKG.
NO.
CA3280AE
-55 to 125
16 Ld PDIP
E16.3
CA3280E
0 to 70
16 Ld PDIP
E16.3
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
ID, A1
EMITTER, A1
IABC, A1
V-
NC
IABC, A2
ID, A2
EMITTER, A2
+IN, A1
V+, A1
OUT, A1
OUT, A2
V+, A2
-IN, A2
+IN, A2
-IN, A1
-
+
A1
-
+
A2
4
14
2
3
1
16
15
13
-
+
10
9
8
6
12
7
11
2K
1/2 CA3280
Data Sheet
May 2002
FN1174.6
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
| Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002. All Rights Reserved
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