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TC911BCOA Fiches technique(PDF) 1 Page - TelCom Semiconductor, Inc

No de pièce TC911BCOA
Description  AUTO-ZEROED OPERATIONAL AMPLIFIERS
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Fabricant  TELCOM [TelCom Semiconductor, Inc]
Site Internet  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC911BCOA Fiches technique(HTML) 1 Page - TelCom Semiconductor, Inc

  TC911BCOA Datasheet HTML 1Page - TelCom Semiconductor, Inc TC911BCOA Datasheet HTML 2Page - TelCom Semiconductor, Inc TC911BCOA Datasheet HTML 3Page - TelCom Semiconductor, Inc TC911BCOA Datasheet HTML 4Page - TelCom Semiconductor, Inc TC911BCOA Datasheet HTML 5Page - TelCom Semiconductor, Inc  
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TELCOM SEMICONDUCTOR, INC.
7
6
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4
3
1
2
8
AUTO-ZEROED OPERATIONAL AMPLIFIERS
FEATURES
s
First Monolithic Chopper-Stabilized Amplifier
With On-Chip Nulling Capacitors
s
Offset Voltage .................................................... 5
µV
s
Offset Voltage Drift .................................. 0.05
µV/°C
s
Low Supply Current ...................................... 350
µA
s
High Common-Mode Rejection .................... 116dB
s
Single Supply Operation ....................... 4.5V to 16V
s
High Slew Rate ............................................. 2.5V/
µs
s
Wide Bandwidth ............................................ 1.5MHz
s
High Open-Loop Voltage Gain
(RL = 10 kΩ) .................................................... 120dB
s
Low Input Voltage Noise
(0.1 Hz to 1 Hz) .......................................... 0.65
µV
P-P
s
Pin Compatible With ICL7650
s
Lower System Parts Count
GENERAL DESCRIPTION
The TC911 CMOS auto-zeroed operational amplifier is
the first complete monolithic chopper-stabilized amplifier.
Chopper operational amplifiers like the ICL7650/7652 and
LTC1052 require user-supplied, external offset compensa-
tion storage capacitors. External capacitors are not re-
quired with the TC911. Just as easy to use as the conven-
tional 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 15
µV maximum offset
voltage, 0.15
µV/°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 350
µA. 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)
+
+
VDD
VSS
TC911
–INPUT
+INPUT
A
2
3
47
B
*
*
A
B
6
*NOTE: Internal capacitors. No external capacitors required.
MAIN
AMPLIFIER
LOW IMPEDANCE
OUTPUT BUFFER
INTERNAL
OSCILLATOR
(f
200 Hz)
OSC ≈
V
CORRECTION AMPLIFIER
OS
+
OUTPUT
1
2
3
4
8
7
6
5
OUTPUT
NC
+ INPUT
TC911ACPA
TC911BCPA
– INPUT
NC
NC
V
SS
V
SS
V
DD
V
DD
NC = NO INTERNAL CONNECTION
1
2
3
4
8
7
6
5
OUTPUT
NC
+ INPUT
TC911ACOA
TC911BCOA
– INPUT
NC
NC
ORDERING INFORMATION
Maximum
Temperature
Offset
Part No.
Package
Range
Voltage
TC911ACOA
8-Pin SOIC
0
°C to +70°C15µV
TC911ACPA
8-Pin
0
°C to +70°C15µV
Plastic DIP
TC911BCOA
8-Pin SOIC
0
°C to +70°C30µV
TC911BCPA
8-Pin
0
°C to +70°C30µV
Plastic DIP
FUNCTIONAL BLOCK DIAGRAM
TC911/A/B-7 9/11/96
TC911A
TC911B


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