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DESCRIPTION
The LTC1050 is a high performance, low cost CHOPPER STABILIZED OPERATIONAL AMPLIFIER. The unique achievement of the LTC1050 is that it integrates on chip the two sample-and-hold CAPACITORS usually required externally by other CHOPPER AMPLIFIERs. Further, the LTC1050 offers better combined overall DC and AC performance than is available from other CHOPPER STABILIZED AMPLIFIERs WITH or WITHout INTERNAL sample-and-hold CAPACITORS.

FEATURES
■ No External Components Required
■ Noise Tested and Guaranteed
■ Low Aliasing Errors
■ Maximum Offset Voltage: 5µV
■ Maximum Offset Voltage Drift: 0.05µV/°C
■ Low Noise: 1.6µVP-P (0.1Hz to 10Hz)
■ Minimum Voltage Gain: 130dB
■ Minimum PSRR: 125dB
■ Minimum CMRR: 120dB
■ Low Supply Current: 1mA
■ Single Supply Operation: 4.75V to 16V
■ Input Common Mode Range Includes Ground
■ Output Swings to Ground
■ Typical Overload Recovery Time: 3ms

APPLICATIONS
■ Thermocouple AMPLIFIERs
■ Electronic Scales
■ Medical Instrumentation
■ Strain Gauge AMPLIFIERs
■ High Resolution Data Acquisition
■ DC Accurate R, C Active Filters

DESCRIPTION
The LTC1047 is a micropower, high performance dual zero-drift OPERATIONAL AMPLIFIER. The sample-and-hold CAPACITORS usually required by other CHOPPER AMPLIFIERs are integrated on-chip, minimizing the need for external components.

FEATURES
■ No External Components Required
■ Supply Current: 80µA
■ Maximum Offset Voltage: 10µV
■ Maximum Offset Voltage Drift: 50nV/°C
■ Minimum CMRR: 110dB
■ Minimum PSRR: 110dB
■ Single Supply Operation: 4.75V to 16V
■ Common Mode Range Includes GND
■ Output Swings to GND
■ Typical Overload Recovery Time: 70ms
■ Pin Compatible WITH Industry Standard Dual Op Amps

APPLICATIONS
■ Thermocouple AMPLIFIERs
■ Electronic Scales
■ Battery Powered Instrumentation
■ Strain Gauge AMPLIFIERs
■ Remote Located Sensors

±15 Volt CHOPPER STABILIZED OPERATIONAL AMPLIFIER

description
The TLC2652 and TLC2652A are high-PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERs using Texas Instruments Advanced LinCMOS process. This process in conjunction WITH unique CHOPPER-stabilization circuitry produces opera tional AMPLIFIERs whose performance matches or exceeds that of similar devices available today.
CHOPPER-stabilization techniques make possible extremely high dc PRECISION by continuously nulling input offset voltage even during variation in temperature, time, common-mode voltage, and power supply voltage. In addition, low-frequency noise voltage is significantly reduced. This high PRECISION, coupled WITH the extremely high input impedance of the CMOS input stage, makes the TLC2652 and TLC2652A an ideal choice for low-level signal processing applications such as strain gauges, thermocouples, and other transducer AMPLIFIERs. For applications that require extremely low noise and higher usable bandwidth, use the TLC2654 or TLC2654A device, which has a chopping frequency of 10 kHz.
The TLC2652 and TLC2652A input common-mode range includes the negative rail, thereby providing superior performance in either single-supply or split-supply applications, even at power supply voltage levels as low as ±1.9 V.

● Extremely Low Offset Voltage . . . 1 µV Max
● Extremely Low Change on Offset Voltage WITH Temperature . . . 0.003 µV/°C Typ
● Low Input Offset Current 500 pA Max at TA = – 55°C to 125°C
● AVD . . . 135 dB Min
● CMRR and kSVR . . . 120 dB Min
● Single-Supply Operation
● Common-Mode Input Voltage Range Includes the Negative Rail
● No Noise Degradation WITH External CAPACITORS Connected to VDD–

description
The LTC1052 is a low-noise CHOPPER-STABILIZED OPERATIONAL AMPLIFIER manufactured using CMOS silicon-gate technology. The device is well-suited for applications such as thermocouple AMPLIFIERs, strain-gauge AMPLIFIERs, low-level signal processing, and medical instrumentation.

• Input Offset Voltage . . . 5 µV Max at 25°C
• Temperature Coefficient of Input Offset Voltage . . . 0.001 µV/°C Typ
• Long-Term Drift of Input Offset Voltage 100 nV/mo Typ
• Maximum Input Bias Current . . . 30 pA at 25°C
• Minimum Differential Voltage Amplification Over Full Temperature Range . . . 120 dB
• Minimum Common-Mode Rejection Ratio Over Full Temperature Range . . . 120 dB
• Minimum Supply Voltage Rejection Ratio Over Full Temperature Range . . . 120 dB
• Single-Supply Operation from 4.75 V to 16 V (Input Voltage Range Extends to Ground)
• External CAPACITORS Can Be Returned to VCC− WITH No Noise Degradation

GENERAL DESCRIPTION
The TC7650 CMOS CHOPPER-STABILIZED OPERATIONAL AMPLIFIER practically removes offset voltage error terms from system error calculations. The 5µV maximum VOS specification, for example, represents a 15 times improvement over the industry-standard OP07E. The 50nV/°C offset drift specification is over 25 times lower than the OP07E. The increased performance eliminates VOS trim procedures, periodic potentiometer adjustment and the reliability problems caused by damaged trimmers,

FEATURES
■ Low Input Offset Voltage ......................... 0.7µV Typ
■ Low Input Offset Voltage Drift ......... 0.05µV/°C Max
■ Low Input Bias Current ............................ 10pA Max
■ High Impedance Differential CMOS Inputs.... 1012Ω
■ High Open-Loop Voltage Gain................ 120dB Min
■ Low Input Noise Voltage ............................ 2.0µVp-p
■ High Slew Rate .......................................... 2.5V/µsec
■ Low-Power Operation..................................... 20mW
■ Output Clamp Speeds Recovery Time
■ Compensated INTERNALly for Stable Unity Gain Operation
■ Direct Replacement for ICL7650
■ Available in 8-Pin Dip and 14-Pin Dip

DESCRIPTION
The LTC®1051/LTC1053 are high performance, low cost dual/quad zero-drift OPERATIONAL AMPLIFIERs. The unique achievement of the LTC1051/LTC1053 is that they integrate on chip the sample-and-hold CAPACITORS usually required externally by other CHOPPER AMPLIFIERs. Further, the LTC1051/LTC1053 offer better combined overall DC and AC performance than is available from other CHOPPER STABILIZED AMPLIFIERs WITH or WITHout INTERNAL sample/hold CAPACITORS.
The LTC1051/LTC1053 have an offset voltage of 0.5µV, drift of 0.01µV/°C, DC to 10Hz, input noise voltage typically 1.5µVP-P and typical voltage gain of 140dB. The slew rate of 4V/µs and gain bandwidth product of 2.5MHz are achieved WITH only 1mA of supply current per op amp. Overload recover times from positive and negative saturation conditions are 1.5ms and 3ms respectively, about a 100 or more times improvement over CHOPPER AMPLIFIERs using external CAPACITORS.
The LTC1051 is available in an 8-lead standard plastic dual-in-line package as well as a 16-pin SW package. The LTC1053 is available in a standard 14-pin plastic package and an 18-pin SO. The LTC1051/LTC1053 are plug in replacements for most standard dual/quad op amps WITH improved performance.

FEATURES
■ Dual/Quad Low Cost PRECISION Op Amp
■ No External Components Required
■ Maximum Offset Voltage: 5µV
■ Maximum Offset Voltage Drift: 0.05µV/°C
■ Low Noise 1.5µVP-P (0.1Hz to 10Hz)
■ Minimum Voltage Gain: 120dB
■ Minimum PSRR: 120dB
■ Minimum CMRR: 114dB
■ Low Supply Current: 1mA/Op Amp
■ Single Supply Operation: 4.75V to 16V
■ Input Common Mode Range Includes Ground
■ Output Swings to Ground
■ Typical Overload Recovery Time: 3ms
■ Pin Compatible WITH Industry Standard Dual and Quad Op Amps

APPLICATIONS
■ Thermocouple AMPLIFIERs
■ Electronic Scales
■ Medical Instrumentation
■ Strain Gauge AMPLIFIERs
■ High Resolution Data Acquisition
■ DC Accurate R C Active Filters

GENERAL DESCRIPTION
The TC7650 CMOS CHOPPER-STABILIZED OPERATIONAL AMPLIFIER practically removes offset voltage error terms from system error calculations. The 5µV maximum VOS specification, for example, represents a 15 times improvement over the industry-standard OP07E. The 50nV/°C offset drift specification is over 25 times lower than the OP07E. The increased performance eliminates VOS trim procedures, periodic potentiometer adjustment and the reliability problems caused by damaged trimmers.

FEATURES
■ Low Input Offset Voltage ......................... 0.7µV Typ
■ Low Input Offset Voltage Drift ......... 0.05µV/°C Max
■ Low Input Bias Current ............................ 10pA Max
■ High Impedance Differential CMOS Inputs.... 1012Ω
■ High Open-Loop Voltage Gain................ 120dB Min
■ Low Input Noise Voltage ............................ 2.0µVp-p
■ High Slew Rate .......................................... 2.5V/µsec
■ Low-Power Operation..................................... 20mW
■ Output Clamp Speeds Recovery Time
■ Compensated INTERNALly for Stable Unity Gain Operation
■ Direct Replacement for ICL7650
■ Available in 8-Pin Dip and 14-Pin Dip

The ICL7650S Super CHOPPER-STABILIZED AMPLIFIER offers exceptionally low input offset voltage and is extremely stable WITH respect to time and temperature. It is a direct replacement for the industry-standard ICL7650 offering improved input offset voltage, lower input offset voltage temperature coefficient, reduced input bias current, and wider common mode voltage range. All improvements are highlighted in bold italics in the Electrical Characteristics section. Critical parameters are guaranteed over the entire commercial temperature range.

Features
• Guaranteed Max Input Offset Voltage for All Temperature Ranges
• Low Long-Term and Temperature Drifts of Input Offset Voltage
• Guaranteed Max Input Bias Current. . . . . . . . . . . . . .10pA
• Extremely Wide Common Mode
Voltage Range. . . . . . . . . . . . . . . . . . . . . . . +3.5V to -5V
• Reduced Supply Current . . . . . . . . . . . . . . . . . . . . . . 2mA
• Guaranteed Minimum Output Source/Sink Current
• Extremely High Gain . . . . . . . . . . . . . . . . . . . . . . . .150dB
• Extremely High CMRR and PSRR . . . . . . . . . . . . . .140dB
• High Slew Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . .2.5V/µs
• Wide Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2MHz
• Unity-Gain Compensated
• Clamp Circuit to Avoid Overload Recovery Problems and Allow Comparator Use
• Extremely Low Chopping Spikes at Input and Output
• Improved, Direct Replacement for Industry-Standard ICL7650 and other Second-Source Parts