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TC911ACOA PDF даташит

Спецификация TC911ACOA изготовлена ​​​​«Microchip Technology» и имеет функцию, называемую «Monolithic Auto-Zeroed Operational Amplifers».

Детали детали

Номер произв TC911ACOA
Описание Monolithic Auto-Zeroed Operational Amplifers
Производители Microchip Technology
логотип Microchip Technology логотип 

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TC911ACOA Даташит, Описание, Даташиты
TC911A
TC911B
Monolithic Auto-Zeroed Operational Amplifers
FEATURES
s First Monolithic Chopper-Stabilized Amplifier
With On-Chip Nulling Capacitors
s Offset Voltage .................................................... 5µV
s Offset Voltage Drift .................................. 0.05µV/°C
s Low Supply Current ...................................... 350µA
s High Common-Mode Rejection .................... 116dB
s Single Supply Operation ....................... 4.5V to 16V
s High Slew Rate ......................................... 2.5V/µsec
s Wide Bandwidth ............................................ 1.5MHz
s High Open-Loop Voltage Gain
(RL = 10k) ..................................................... 120dB
s Low Input Voltage Noise
(0.1Hz to 1Hz) ............................................ 0.65µVP-P
s Pin Compatible With ICL7650
s Lower System Parts Count
ORDERING INFORMATION
Part No.
TC911ACOA
TC911ACPA
TC911BCOA
TC911BCPA
Temperature
Package
Range
8-Pin SOIC
8-Pin
Plastic DIP
8-Pin SOIC
8-Pin
Plastic DIP
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Maximum
Offset
Voltage
15µV
15µV
30µV
30µV
GENERAL DESCRIPTION
The TC911 CMOS auto-zeroed operational amplifier
is the first complete monolithic chopper-stabilized ampli-
fier. Chopper operational amplifiers like the ICL7650/7652
and LTC1052 require user-supplied, external offset com-
pensation storage capacitors. External capacitors are
not required with the TC911. Just as easy to use as the
conventional OP07 type amplifier, the TC911 significantly
reduces offset voltage errors. Pinout matches the OP07/
741/7650 8-pin mini-DIP configuration.
Several system benefits arise by eliminating the exter-
nal chopper capacitors: lower system parts count, reduced
assembly time and cost, greater system reliability, reduced
PC board layout effort and greater board area utilization.
Space savings can be significant in multiple-amplifier de-
signs.
Electrical specifications include 15µV maximum offset
voltage, 0.15µV/°C maximum offset voltage temperature
coefficient. Offset voltage error is five times lower than the
premium OP07E bipolar device. The TC911 improves off-
set drift performance by eight times.
The TC911 operates from dual or single power sup-
plies. Supply current is typically 350µA. Single 4.5V to 16V
supply operation is possible, making single 9V battery
operation possible. The TC911 is available in 2 package
types: 8-pin plastic DIP and SOIC.
PIN CONFIGURATION (SOIC and DIP)
NC 1
8 NC
INPUT 2
+ INPUT 3
VSS 4
TC911ACPA
TC911BCPA
7 VDD
6 OUTPUT
5 NC
NC 1
INPUT 2
+ INPUT 3
VSS 4
8 NC
TC911ACOA 7 VDD
TC911BCOA 6 OUTPUT
5 NC
FUNCTIONAL BLOCK DIAGRAM
NC = NO INTERNAL CONNECTION
VDD
VSS
INPUT
2
47
VOS CORRECTION AMPLIFIER
+
A
B
*B
INTERNAL
OSCILLATOR
(fOSC 200 Hz)
+INPUT
3
A
*
+
MAIN
AMPLIFIER
TC911
LOW IMPEDANCE
+ OUTPUT BUFFER
6
OUTPUT
© 2001 Microchip Technology Inc. DS21481A
*NOTE: Internal capacitors. No external capacitors required.
TC911/A/B-7 9/11/96









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TC911ACOA Даташит, Описание, Даташиты
Monolithic Auto-Zeroed Operational Amplifers
TC911A
TC911/B
ABSOLUTE MAXIMUM RATINGS*
Total Supply Voltage (VDD to VSS) ........................... +18V
Input Voltage .......................... (VDD +0.3V) to (VSS –0.3V)
Current into Any Pin ................................................. 10mA
While Operating ............................................... 100µA
Storage Temperature Range ................ – 65°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300°C
Operating Temperature Range
C Device ................................................ 0°C to +70°C
Package Power Dissipation (TA 70°C)
Plastic DIP ...................................................... 730mW
Plastic SOIC ................................................... 470mW
*Static-sensitive device. Unused devices should be stored in conductive
material. Stresses above those listed under “Absolute Maximum Ratings”
may cause permanent damage to the device. These are stress ratings only
and functional operation of the device at these or any other conditions
above those indicated in the operational sections of the specifications is not
implied.
ELECTRICAL CHARACTERISTICS: VS = ±5V, TA = +25°C, unless otherwise indicated.
Symbol Parameter
Test Conditions
TC911A
Min Typ Max
TC911B
Min Typ Max
Unit
VOS
TCVOS
IB
IOS
eN
CMRR
CMVR
AOL
VOUT
BW
SR
PSRR
VS
IS
Input Offset Voltage
Average Temperature
Coefficient of Input
Offset Voltage
Average Input Bias
Current
Average Input
Offset Current
Input Voltage Noise
Common-Mode
Rejection Ratio
Common-Mode
Voltage Range
Open-Loop Voltage
Gain
Output Voltage Swing
Closed Loop
Bandwidth
Slew Rate
Power Supply
Rejection Ratio
Operating Supply
Voltage Range
Quiescent Supply
Current
TA = +25°C
0°C TA +70°C
–25°C TA +85°C
(Note 1)
TA = +25°C
0°C TA +70°C
–25°C TA +85°C
TA = +25°C
TA = +85°C
0.1 to 1 Hz, RS 100
0.1 to 10 Hz, RS 100
VSS VCM VDD – 2.2
110
5
0.05
0.05
5
0.65
11
116
15
0.15
0.15
70
3
4
20
1
105
RL = 10 k, VOUT = ±4V
VSS
115
— VDD – 2
120 —
VSS
110
RL = 10 k
VSS + 0.3 — VDD – 0.9 VSS + 0.3
Closed Loop Gain = +1 — 1.5 —
RL = 10 k, CL = 50pF
±3.3V to ±5.5V
112
2.5
105
Split Supply
Single Supply
VS = ±5V
±3.3
6.5
350
±8
16
600
±3.3
6.5
15 30
µV
0.1 0.25 µV/°C
0.1 0.25 µV/°C
— 120
—4
—6
pA
nA
nA
10 40
—1
pA
nA
0.65 —
11 —
µVP-P
µVP-P
110 —
dB
— VDD –2
120 —
V
dB
— VDD – 0.9
V
1.5 — MHz
2.5 — V/µsec
——
dB
±8
— 16
— 800
V
V
µA
NOTES: 1. Characterized; not 100% tested.
2 © 2001 Microchip Technology Inc. DS21481A









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TC911ACOA Даташит, Описание, Даташиты
Monolithic Auto-Zeroed Operational Amplifers
TC911A
TC911B
TYPICAL CHARACTERISTICS
Supply Current vs. ± Supply Voltage
700
TA = +25°C
600
500
400
Supply Current vs. Temperature
450
VS = ±5V
400
350
300 300
200
100
0
2
34567
± SUPPLY VOLTAGE (V)
8
250
200
100
50 0
50 100
AMBIENT TEMPERATURE (°C)
150
Gain and Phase vs. Frequency
50 225
VS = ±5V
40 TA = +25°C 180
30
PHASE
RL = 10 k135
20 GAIN
90
10 45
00
10
20
30
40
10k
100k
1M
FREQUENCY (Hz)
45
90
135
180
10M
Large Signal Output
Switching Waveform
INPUT VERTICAL
SCALE = 2 V/DIV
0V
RL = 10 k
TA = +25°C
OUTPUT
VERTICAL
SCALE
= 1 V/DIV
HORIZONTAL SCALE = 2 µs/DIV
Input Offset Voltage vs.
Common-Mode Voltage
35
VS = ±5V
30 TA = +25°C
25
20
15
10
5
0
6 5 4 3 2 1 0 1 2 3 4
INPUT COMMON-MODE VOLTAGE (V)
Output Voltage Swing vs.
Load Resistance
5.8
TA = +25°C
5.0 VS = ±5V
SWING
4.2
+SWING
3.4
2.6
1.8
1.0
100
1k 10k 100k
LOAD RESISTANCE ()
1M
© 2001 Microchip Technology Inc. DS21481A
3










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