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Número de pieza | TC7652CPD | |
Descripción | Low Noise/ Chopper Stabilized Operational Amplifier | |
Fabricantes | Microchip Technology | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de TC7652CPD (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
No Preview Available ! TC7652
Low Noise, Chopper Stabilized Operational Amplifier
Features
• Low Offset Over Temperature Range: 10µV
• Ultra Low Long Term Drift: 150nV/Month
• Low Temperature Drift: 100nV/°C
• Low DC Input Bias Current: 15pA
• High Gain, CMRR and PSRR: 110dB Min
• Low Input Noise Voltage: 0.2µVp-p (DC to 1Hz)
• Internally Compensated for Unity Gain Operation
• Clamp Circuit for Fast Overload Recovery
Applications
• Instrumentation
• Medical Instrumentation
• Embedded Control
• Temperature Sensor Amplifier
• Strain Gage Amplifier
Device Selection Table
Part Number
TC7652CPA
TC7652CPD
Package
8-Pin Plastic DIP
14-Pin Plastic DIP
Temperature
Range
0°C to +70°C
0°C to +70°C
Package Type
8-Pin DIP
CA 1
8 CB
-Input 2
7
TC7652CPA
VDD
+Input 3
6 Output
VSS 4
5
Output
Clamp
14-Pin DIP
CB 1
14 INT/EXT
CA 2
13
EXT CLK
In
NC 3
12
INT CLK
Out
TC7652CPD
-Input 4
11 VDD
+Input 5
NC 6
VSS 7
10 Output
9
Output
Clamp
8 CRETN
NC = No Internal Connection
(May Be Used As Input Guard)
General Description
The TC7652 is a lower noise version of the TC7650,
sacrificing some input specifications (bias current and
bandwidth) to achieve a 10x reduction in noise. All the
other benefits of the chopper technique are present,
(i.e, freedom from offset adjust, drift and reliability prob-
lems from external trim components). Like the TC7650,
the TC7652 requires only two noncritical external caps
for storing the chopped null potentials. There are no
significant chopping spikes, internal effects or over-
range lockup problems.
© 2002 Microchip Technology Inc.
DS21464B-page 1
1 page 2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1: PIN FUNCTION TABLE
Pin Number
8-pin DIP 14-pin DIP
Symbol
Description
1,8
2,1
CA, CB
Nulling capacitor pins
2 4 -INPUT Inverting Input
3 5 +INPUT Non-inverting Input
47
VSS Negative Power Supply
5 9 OUTPUT Output Voltage Clamp
CLAMP
6 10 OUTPUT Output
7 11
— 3,6
VDD Positive Power Supply
NC No internal connection
—
8
CRETN
Capacitor current return pin
— 12 INT CLK OUT Internal Clock Output
— 13 EXT CLK IN External Clock Input
— 14 INT/EXT Select Internal or External Clock
TC7652
© 2002 Microchip Technology Inc.
DS21464B-page 5
5 Page TC7652
Input Offset Voltage vs Common Mode Voltage
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5-6 -4 -2 0 2 4
COMMON MODE VOLTAGE (V)
© 2002 Microchip Technology Inc.
DS21464B-page 11
11 Page |
Páginas | Total 16 Páginas | |
PDF Descargar | [ Datasheet TC7652CPD.PDF ] |
Número de pieza | Descripción | Fabricantes |
TC7652CPA | Low Noise/ Chopper Stabilized Operational Amplifier | Microchip Technology |
TC7652CPA | LOW NOISE/ CHOPPER-STABILIZED OPERATIONAL AMPLIFIER | TelCom Semiconductor |
TC7652CPD | Low Noise/ Chopper Stabilized Operational Amplifier | Microchip Technology |
TC7652CPD | LOW NOISE/ CHOPPER-STABILIZED OPERATIONAL AMPLIFIER | TelCom Semiconductor |
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