TC7650

TC7650 CMOS chopper-stabilized operational amplifier practically removes offset voltage error terms from system error calculations. 5uV maximum VOS specification, for example, represents a 15 times improvement over the industry-standard OP07E. 50 nV/°C off-set drift specification is over 25 times lower than the OP07E. Increased performance eliminates VOS trim procedures, periodic potentiometer adjustment and the reliability problems caused by damaged trimmers. The TC7650 performance advantages are achieved without the additional manufacturing complexity and cost incurred with laser or "zener zap" VOS trim techniques. The TC7650 nulling scheme corrects both DC VOS errors and VOS drift errors with temperature. A nulling amplifier alternately corrects its own VOS errors and the main amplifier VOS error. Offset nulling voltages are stored on two user-supplied external capacitors. The capacitors connect to the internal amplifier VOS null points. The main amplifier input signal is never switched. Switching spikes are not present at the TC7650 output. The 14-pin dual-in-line package (DIP) has an external oscillator input to drive the nulling circuitry for optimum noise performance. Both the 8 and 14-pin DIPs have an output voltage clamp circuit to minimize overload recovery time.

Features
  • Zero Drift Architecture for Low Offset and Offset Drift
  • Low Offset, 5uV (Maximum)
  • Low Offset Drift, 50nV/°C
  • Wide Operating Voltage Range, 4.5V to 16V
  • Single and Split Supply
  • No 1/f Noise
Parameter
Parameter Name Value Value
Temp. Range (°C) 0°C to +70°C 0°C to +70°C
Vos Max (µV) 5 5
# per Package 1 1
Iq Typical (µA) 2000 2000
Iq Max (µA) 3500 3500
GBWP (kHz) 2000 2000
Operating Voltage Range (V) 6.5 to 16 6.5 to 16
Device Description Linear High Precision Op Amps-Chopper Stabilized Linear High Precision Op Amps-Chopper Stabilized
PSRR Min (dB) 120 120
CMRR Min (dB) 120 120
Vos/Ta (uV/°C) 0.01 0.01
Ib (pA) 1.5 1.5
Aol (dB) 130 130
PM (deg) 90 90
Rail-to-Rail Out Out
Slew Rate V/uS 2.5 2.5
Documents
TC7650 DatasheetData Sheets02/05/2013196KB
AN1016 - Detecting Small Capacitive Sensors Using the MCP6291 and PIC16F690 DevicesAppNote04/13/2006630KB
AN1177 - Op Amp Precision Design: DC ErrorsAppNote03/12/2008269KB
AN1228 - Op Amp Precision Design: Random NoiseAppNote09/02/2008588KB
AN1258 - Op Amp Precision Design: PCB Layout TechniquesAppNote07/03/2012538KB
AN679 - Temperature Sensing TechnologiesAppNote08/10/1999177KB
AN682 - Using Single Supply Operational Amplifiers in Embedded SystemsAppNote07/07/2011169KB
AN684 - Single Supply Temperature Sensing with ThermocouplesAppNote08/10/1999301KB
AN685 - Thermistors in Single Supply Temperature Sensing CircuitsAppNote07/27/2004163KB
AN687 - Precision Temperature Sensing with RTD CircuitsAppNote09/26/2008149KB
AN695 - Interfacing Pressure Sensors to Microchip's Analog PeripheralsAppNote04/13/2000230KB
AN699 - Anti-Aliasing, Analog Filters for Data Acquisition SystemsAppNote07/26/1999171KB
AN717 - Building a 10-Bit Bridge Sensing Circuit Using the PIC16C6XX and MCP601Operational AmplifierAppNote04/03/2001181KB
AN722 - Operational Amplifier Topologies and DC SpecificationsAppNote04/03/2001223KB
AN723 - Operational Amplifier AC Specifications and ApplicationsAppNote04/03/2001341KB
AN737 - Using Digital Potentiometers to Design Low Pass Adjustable FiltersAppNote02/24/2004277KB
AN792 - A Method to Determine How Much Power a SOT23 Can Dissipate in an ApplicationAppNote07/18/2001523KB
AN844 - Simplified Thermocouple Interfaces and PICmicro® MCUsAppNote07/21/2002273KB
AN866 - Designing Operational Amplifier Oscillator Circuits For Sensor ApplicationsAppNote06/18/2003358KB
AN895 - Oscillator Circuits for RTD Temperature SensorsAppNote05/17/2004418KB
AN897 - Thermistor Temperature Sensing with MCP6SX2 PGAsAppNote05/31/2006452KB
AN929 - Temperature Measurement Circuits for Embedded ApplicationsAppNote05/06/2004448KB
AN951 - Amplifying High-Impedence Sensors ? Photodiode ExampleAppNote07/25/2006290KB
AN990 - Analog Sensor Conditioning Circuits - An OverviewAppNote03/28/2010262KB
Driving Capacitive Loads With Op Amps - Driving Capacitive Loads With Op AmpsAppNote03/31/2009493KB
TB077 - Advantage's of Microchip's Cascaded Op AmpsAppNote07/25/200685KB
Analog & Interface Guide (Volume 2)Brochures10/11/20051067KB
Automotive Recommended Product Selector GuideBrochures09/16/20147598KB
PGA, Operational Amplifiers and Comparators Design GuideBrochures12/08/2009640KB
Quick Guide to Microchip Development ToolsBrochures10/15/201411223KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board User's GuideUser Guides01/24/20061367KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
TC7650CPA8PDIP0C to +70CTUBE3.412.842.582.151.98
TC7650CPD14PDIP0C to +70CTUBE3.723.102.822.352.17
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
TC7650CPA0.4867000.9000008PDIP.300inMatte Tine3
TC7650CPD0.9533001.83333314PDIP.300inMatte Tine3
TC7650IJA1.0224100.8000008CERDIP.300inSACe1
TC7650 Datasheet TC7650
AN1016 MCP6548
AN1016 VB6 Source Code MCP6548
AN1016 Assembly Code MCP6548
AN1177 MCP651EV-VOS
AN1228 MCP665
AN1258 MCP6N11
AN679 MCP3553
AN682 MCP665
AN684 MCP6023
AN685 TC14433
AN687 MCP6024
AN695 TC850
AN699 MCP3021
AN717 MCP6295
AN722 MCP651S
AN723 MCP665
AN737 MCP4552
AN792 MCP655
AN844 MCP665
AN844 Source Code MCP665
AN866 MCP662
AN895 MCP6548
AN897 MCP6S28
AN897 Source Code MCP6S28
AN929 MCP6N11
AN951 MCP6G02
AN990 MCP6549
Driving Capacitive Loads With Op Amps MCP6N11
TB077 MCP6294
Analog & Interface Guide (Volume 2) MCP23S08
Automotive Recommended Product Selector Guide MCP23S09
PGA, Operational Amplifiers and Comparators Design Guide MCP6569
Quick Guide to Microchip Development Tools ENC28J60
Analog & Interface Product Selector Guide ENC624J600
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board User's Guide SOIC8EV