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PDF CA3080 Data sheet ( Hoja de datos )
| Número de pieza | CA3080 | |
| Descripción | Operational Transconductance Amplifier | |
| Fabricantes | Harris Semiconductor | |
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CA3080, CA3080A
SEMICONDUCTOR
November 1996
2MHz, Operational
Transconductance Amplifier (OTA)
Features
• Slew Rate (Unity Gain, Compensated). . . . . . . . 50V/µs
• Adjustable Power Consumption . . . . . . . . . 10µW to 30µW
• Flexible Supply Voltage Range . . . . . . . . . . ±2V to ±15V
• Fully Adjustable Gain . . . . . . . . . . . . . . 0 to gMRL Limit
• Tight gM Spread:
www.DataSheet4U.-coCmA3080 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2:1
- CA3080A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6:1
• Extended gM Linearity. . . . . . . . . . . . . . . . . . 3 Decades
Applications
• Sample and Hold
• Multiplexer
• Voltage Follower
• Multiplier
• Comparator
Ordering Information
PART NUMBER
(BRAND)
CA3080
CA3080A
CA3080AE
CA3080AM
(3080A)
CA3080AM96
(3080A)
CA3080E
CA3080M
(3080)
CA3080M96
(3080)
TEMP.
RANGE (oC)
PACKAGE
0 to 70 8 Pin Metal Can
-55 to 125 8 Pin Metal Can
-55 to 125 8 Ld PDIP
-55 to 125 8 Ld SOIC
-55 to 125
0 to 70
0 to 70
8 Ld SOIC Tape
and Reel
8 Ld PDIP
8 Ld SOIC
0 to 70
8 Ld SOIC Tape
and Reel
PKG.
NO.
T8.C
T8.C
E8.3
M8.15
M8.15
E8.3
M8.15
M8.15
Description
The CA3080 and CA3080A types are Gatable-Gain Blocks
which utilize the unique operational-transconductance-
amplifier (OTA) concept described in Application Note
AN6668, “Applications of the CA3080 and CA3080A High-
Performance Operational Transconductance Amplifiers”.
The CA3080 and CA3080A types have differential input and a
single-ended, push-pull, class A output. In addition, these types
have an amplifier bias input which may be used either for gating
or for linear gain control. These types also have a high output
impedance and their transconductance (gM) is directly
proportional to the amplifier bias current (IABC).
The CA3080 and CA3080A types are notable for their excellent
slew rate (50V/µs), which makes them especially useful for
multiplexer and fast unity-gain voltage followers. These types
are especially applicable for multiplexer applications because
power is consumed only when the devices are in the “ON”
channel state.
The CA3080A’s characteristics are specifically controlled for
applications such as sample-hold, gain-control, multiplexing, etc.
Pinouts
CA3080
(PDIP, SOIC)
TOP VIEW
NC
INV.
INPUT
NON-INV.
INPUT
V-
1
2
3
4
-
+
8 NC
7 V+
6 OUTPUT
5
AMPLIFIER
BIAS INPUT
NOTE: Pin 4 is connected to case.
CA3080
(METAL CAN)
TOP VIEW
TAB
8
1 7 V+
INV.
INPUT
2
-
+
6 OUTPUT
NON-INV. 3
INPUT
4
5 BIAS
V-
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1996
3-45
File Number 475.3
1 page  
Typical Applications (Continued)
2.0kΩ
CA3080, CA3080A
V+ = +15V
INPUT
2.0kΩ
2
3
7
-
CA3080A
+
4
5
0.01µF
3N138
6
220Ω
0.01µF
300pF
OUTPUT
3kΩ
www.DataSheet4U.com
SAMPLE 0V
30kΩ
STORAGE AND PHASE
COMPENSATION NETWORK
SLEW RATE (IN SAMPLE MODE) = 1.3V/µs
ACQUISITION TIME = 3µs (NOTE)
HOLD -15V
NOTE: Time required for output to settle within ±3mV of a 4V step.
V- = -15V
FIGURE 4. SCHEMATIC DIAGRAM OF THE CA3080A IN A SAMPLE-HOLD CONFIGURATION
STROBE
30kΩ
1N914
0 SAMPLE
-15 HOLD
INPUT
2kΩ
1N914
3+
+15V
0.1µF
5
7
CA3080A
6
2-
4
2kΩ
0.1µF
2kΩ
-15V
200pF
200pF
400Ω
+15V
0.1µF
7
3.6kΩ
3+
CA3140
2-
4
1
5
100kΩ
6
0.1
µF
-15V
2kΩ
2kΩ
0.1µF
SIMULATED LOAD
NOT REQUIRED
30pF
FIGURE 5. SAMPLE AND HOLD CIRCUIT
3-49
5 Page 
CA3080, CA3080A
Typical Performance Curves (Continued)
f = 1 MHz
V+ 0.06 TA = 25oC
www.DataSheet4U.com
7
2
CA3080, A
3
5
4
0.01µF
6
0.01µF
V-
FIGURE 30. INPUT-TO-OUTPUT CAPACITANCE TEST CIRCUIT
0.05
0.04
0.03
0.02
0.01
0 2 4 6 8 10 12 14 16 18
POSITIVE AND NEGATIVE SUPPLY VOLTAGE (V)
FIGURE 31. INPUT-TO-OUTPUT CAPACITANCE vs SUPPLY
VOLTAGE
All Harris Semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification.
Harris Semiconductor products are sold by description only. Harris Semiconductor reserves the right to make changes in circuit design and/or specifications at
any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Harris is
believed to be accurate and reliable. However, no responsibility is assumed by Harris or its subsidiaries for its use; nor for any infringements of patents or other
rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Harris or its subsidiaries.
Sales Office Headquarters
For general information regarding Harris Semiconductor and its products, call 1-800-4-HARRIS
NORTH AMERICA
Harris Semiconductor
P. O. Box 883, Mail Stop 53-210
Melbourne, FL 32902
TEL: 1-800-442-7747
(407) 729-4984
FAX: (407) 729-5321
EUROPE
Harris Semiconductor
Mercure Center
100, Rue de la Fusee
1130 Brussels, Belgium
TEL: (32) 2.724.2111
FAX: (32) 2.724.22.05
ASIA
Harris Semiconductor PTE Ltd.
No. 1 Tannery Road
Cencon 1, #09-01
Singapore 1334
TEL: (65) 748-4200
FAX: (65) 748-0400
SEMICONDUCTOR
3-55
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet CA3080.PDF ] | |
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