TC911B Microchip Technology, TC911B Datasheet

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TC911B

Manufacturer Part Number
TC911B
Description
Monolithic Auto-Zeroed Operational Amplifers
Manufacturer
Microchip Technology
Datasheet

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TC911BCOA
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D/A
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TC911BCPA
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MICROCHIPS
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Part Number:
TC911BCPA
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Monolithic Auto-Zeroed Operational Amplifers
FEATURES
FUNCTIONAL BLOCK DIAGRAM
© 2001 Microchip Technology Inc.
ORDERING INFORMATION
Part No.
TC911ACOA
TC911ACPA
TC911BCOA
TC911BCPA
First Monolithic Chopper-Stabilized Amplifier
With On-Chip Nulling Capacitors
Offset Voltage .................................................... 5 V
Offset Voltage Drift .................................. 0.05 V/ C
Low Supply Current ...................................... 350 A
High Common-Mode Rejection .................... 116dB
Single Supply Operation ....................... 4.5V to 16V
High Slew Rate ......................................... 2.5V/ sec
Wide Bandwidth ............................................ 1.5MHz
High Open-Loop Voltage Gain
(R
Low Input Voltage Noise
(0.1Hz to 1Hz) ............................................ 0.65 V
Pin Compatible With ICL7650
Lower System Parts Count
L
= 10k ) ..................................................... 120dB
Package
8-Pin SOIC
8-Pin
Plastic DIP
8-Pin SOIC
8-Pin
Plastic DIP
DS21481A
–INPUT
+INPUT
Temperature
2
3
0 C to +70 C
0 C to +70 C
0 C to +70 C
0 C to +70 C
*
Range
NOTE: Internal capacitors. No external capacitors required.
A
V DD
4
+
+
Maximum
V
OS
*
MAIN
AMPLIFIER
Voltage
Offset
CORRECTION AMPLIFIER
15 V
15 V
30 V
30 V
V SS
P-P
*
7
B
GENERAL DESCRIPTION
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.
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.
voltage, 0.15 V/ 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.
plies. Supply current is typically 350 A. 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)
A
B
+ INPUT
– INPUT
+
The TC911 CMOS auto-zeroed operational amplifier
Several system benefits arise by eliminating the exter-
Electrical specifications include 15 V maximum offset
The TC911 operates from dual or single power sup-
V
NC
SS
LOW IMPEDANCE
OUTPUT BUFFER
(f
1
2
3
4
OSCILLATOR
OSC
INTERNAL
TC911
TC911ACPA
TC911BCPA
200 Hz)
NC = NO INTERNAL CONNECTION
8
7
6
5
6
OUTPUT
NC
V
NC
DD
OUTPUT
– INPUT
+ INPUT
V
NC
SS
1
2
3
4
TC911ACOA
TC911BCOA
TC911A
TC911B
TC911/A/B-7 9/11/96
8
7
6
5
NC
V
OUTPUT
NC
DD

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TC911B Summary of contents

Page 1

... LOW IMPEDANCE + OUTPUT BUFFER – MAIN – AMPLIFIER – INPUT TC911ACPA TC911ACOA + INPUT TC911BCOA TC911BCPA OUTPUT INTERNAL CONNECTION INTERNAL OSCILLATOR 200 Hz) OSC TC911 6 OUTPUT TC911A TC911B OUTPUT NC 5 TC911/A/B-7 9/11/96 ...

Page 2

... 115 120 L OUT = 0.3 — — 1 50pF — 2 3.3V to 5.5V 112 — 3.3 — 6.5 — — 350 TC911B Max Min Typ Max 15 — 0.15 — 0.1 0.25 0.15 — 0.1 0.25 70 — — 120 3 — — — — — — ...

Page 3

... Input Offset Voltage vs. Common-Mode Voltage + –6 –5 –4 –3 –2 –1 0 150 INPUT COMMON-MODE VOLTAGE (V) Output Voltage Swing vs. Load Resistance 5 + 5.0 4.2 3.4 2.6 1.8 1.0 100 1k 10k LOAD RESISTANCE ( ) TC911A TC911B –SWING +SWING 100k 1M ...

Page 4

... Overload Recovery J 1 PACKAGE PIN tion. Typical recovery time from positive output saturation is 20msec. Negative output saturation recovery time is typi- cally 5msec – – 4 The TC911 recovers quickly from the output satura- © 2001 Microchip Technology Inc. DS21481A ...

Page 5

... OUT TEMP d V OUT [ = GND +5V –5V + – IC1b +5V –5V GND WR LATCH GAIN SELECT 5 TC911A TC911B Thermometer Circuit TC911 – REF – ...

Page 6

... SOIC (Narrow) PIN 1 .157 (3.99) .244 (6.20) .150 (3.81) .228 (5.79) .069 (1.75) .053 (1.35) 8 MAX. .010 (0.25) .050 (1.27) .004 (0.10) .016 (0.40) 6 .310 (7.87) .290 (7.37) .015 (0.38) 3 MIN. .008 (0.20) .400 (10.16) .310 (7.87) .010 (0.25) .007 (0.18) Dimensions: inches (mm) © 2001 Microchip Technology Inc. DS21481A ...

Page 7

... Kanagawa, 222-0033, Japan Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea Tel: 82-2-554-7200 Fax: 82-2-558-5934 7 TC911A TC911B S ERVICE ASIA/PACIFIC (continued) Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 ...

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