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[Thomson-CSF]

Linear Integrated Circuits - Operational Amplifiers

The KITHSEVAL/STDL high-speed Operational Amplifier evaluation board kit is comprised of:

■ 5 unmounted evaluation boards,
■ a CDROM of documentation, including:
  – a user manual for the boards,
  – datasheets for the supported high-speed Operational Amplifiers.
 
Each evaluation board allows the user to evaluate one Operational Amplifier at a time. Each  evaluation board is generic for a given package and number of channels:

■ The SOT23_SINGLE_HF board supports a single-channel high-speed Operational Amplifier in the SOT23-5L package.
■ The SO8_SINGLE_HF board supports a single channel high-speed Operational Amplifier in SO8 package.
■ The SO8_DUAL_HF board supports a dual high-speed Operational Amplifier in the SO8 package.
■ The S08_S_MULTI board supports a high speed Operational Amplifier in the SO8 package for both inverting and non-inverting configurations, dual or single supplies.
■ The SO14_TRIPLE board supports a triple high-speed op-amp in the SO14 package with video application considerations.

Each of these evaluation boards is unmounted PCB, and must be mounted with the necessary external components. The choice of these external components depend upon which Operational Amplifier is being evaluated, as well as the desired evaluation conditions (desired gain, etc.). A layout example is shown for each demoboard in the user manual on the kit’s CDROM.

GENERAL DESCRIPTION
The ALD1721E is a monolithic rail-to-rail precision CMOS Operational Amplifier with Integrated user programmable EPAD (Electrically Programmable Analog Device) based offset voltage adjustment. The ALD1721E Operational Amplifier is a direct replacement of the ALD1701 Operational Amplifier, with the added feature of user-programmable offset voltage trimming resulting in significantly enhanced total system performance and user flexibility. EPAD technology is an exclusive ALD design which has been refined for analog applications where precision voltage trimming is necessary to achieve a desired performance. It utilizes CMOS FETs as in Circuit elements for trimming of offset voltage bias characteristics with the aid of a personal computer under software control. Once programmed, the set parameters are stored indefinitely within the device even after power down. EPAD offers the Circuit designer a convenient and cost-effective trimming solution for achieving the very highest Amplifier/system performance.
The ALD1721E Operational Amplifier features rail-to-rail input and output voltage ranges, tolerance to over-voltage input spikes of 300mV beyond supply rails, capacitive loading up to 50pF, extremely low input currents of 0.01pA typical, high open loop voltage gain, useful bandwidth of 700KHz, slew rate of 0.7V/µs, and low typical supply current of 120µA.

KEY FEATURES
• EPAD (Electrically Programmable Analog Device)
• User programmable VOS trimmer
• Computer-assisted trimming
• Rail-to-rail input/output
• Compatible with standard EPAD Programmer
• High precision through in-system Circuit precision trimming
• Reduces or eliminates VOS, PSRR, CMRR and TCVOS errors
• System level “calibration” capability
• Application Specific Programming mode
• In-System Programming mode
• Electrically programmable to compensate for external
   component tolerances
• Achieves 0.01pA input bias current and 35µV input offset
   voltage simultaneously
• Compatible with industry standard pinout

BENEFITS
• Eliminates manual and elaborate
   system trimming procedures
• Remote controlled automated trimming
• In-System Programming capability
• No external components
• No internal chopper clocking noise
• No chopper dynamic power dissipation
• Simple and cost effective
• Small package size
• Extremely small total functional
   volume size
• Low system implementation cost
• Micropower and Low Voltage

APPLICATIONS
• Sensor interface Circuits
• Transducer biasing Circuits
• Capacitive and charge integration Circuits
• Biochemical probe interface
• Signal conditioning
• Portable instruments
• High source impedance electrode
   Amplifiers
• Precision Sample and Hold Amplifiers
• Precision current to voltage converter
• Error correction Circuits
• Sensor compensation Circuits
• Precision gain Amplifiers
• Periodic In-system calibration
• System output level shifter

Low Voltage Rail-To-Rail Sleep-Mode Operational Amplifier

The MC33304 is a monolithic bipolar Operational Amplifier. This low voltage rail–to–rail Amplifier has both a rail–to–rail input and output stage, with high output current capability. This Amplifier also employs Sleep–Mode technology. In sleepmode, the micropower Amplifier is active and waiting for an input signal. When a signal is applied, causing the Amplifier to source or sink ≥200 µA (typically) to the load, it will automatically switch to the awakemode (supplying up to 70 mA to the load). When the output current drops below 90 µA, the Amplifier automatically returns to the sleepmode.
Excellent performance can be achieved as an audio Amplifier. This is due to the Amplifier’s low noise and low distortion. A delay Circuit is incorporated to prevent crossover distortion.

• Ideal for Battery Applications
• Full Output Signal (No Distortion) for Battery Applications Down
   to ±0.9 VDC.
• Single Supply Operation (+1.8 to +12 V)
• Rail–To–Rail Performance on Both the Input and Output
• Output Voltages Swings Typically within 100 mV of Both Rails
   (RL = 1.0 mΩ)
• Two States: “Sleepmode” (Micropower, ID = 110 µA/Amp) and
   “Awakemode” (High Performance, ID = 1200 µA/Amp)
• Automatic Return to Sleepmode when Output Current Drops Below
   Threshold, Allowing a Fully Functional Micropower Amplifier
• Independent Sleepmode Function for Each Amplifier
• No Phase Reversal on the Output for Overdriven Input Signals
• High Output Current (70 mA typically)
• 600 Ω Drive Capability
• Standard Pinouts; No Additional Pins or Components Required
• Drop–In Replacement for Many Other Quad Operational Amplifiers
• Similar to MC33201, MC33202 and MC33204 Family
• The MC33304 Amplifier is Offered in the Plastic DIP or SOIC
   Package (P and D Suffixes)

Low Voltage Rail-to-Rail SLEEPMODE Operational Amplifier

The MC33304 is a monolithic bipolar Operational Amplifier. This low voltage rail–to–rail Amplifier has both a rail–to–rail input and output stage, with high output current capability. This Amplifier also employs SLEEPMODE technology. In sleepmode, the micropower Amplifier is active and waiting for an input signal. When a signal is applied, causing the Amplifier to source or sink ≥200 µA (typically) to the load, it will automatically switch to the awakemode (supplying up to 70 mA to the load). When the output current drops below 90 µA, the Amplifier automatically returns to the sleepmode.
Excellent performance can be achieved as an audio Amplifier. This is due to the Amplifier’s low noise and low distortion. A delay Circuit is incorporated to prevent crossover distortion.

• Ideal for Battery Applications
• Full Output Signal (No Distortion) for Battery Applications Down to ±0.9 VDC.
• Single Supply Operation (+1.8 to +12 V)
• Rail–To–Rail Performance on Both the Input and Output
• Output Voltages Swings Typically within 100 mV of Both Rails (RL = 1.0 mΩ)
• Two States: “Sleepmode” (Micropower, ID = 110 µA/Amp) and “Awakemode” (High Performance, ID = 1200 µA/Amp)
• Automatic Return to Sleepmode when Output Current Drops Below Threshold, Allowing a Fully Functional Micropower Amplifier
• Independent Sleepmode Function for Each Amplifier
• No Phase Reversal on the Output for Overdriven Input Signals
• High Output Current (70 mA typically)
• 600 Ω Drive Capability
• Standard Pinouts; No Additional Pins or Components Required
• Drop–In Replacement for Many Other Quad Operational Amplifiers
• Similar to MC33201, MC33202 and MC33204 Family
• The MC33304 Amplifier is Offered in the Plastic DIP or SOIC Package (P and D Suffixes)

Description
The CA3060 monolithic Integrated Circuit consists of an array of three independent Operational Transconductance Amplifiers (see Note). This type of Amplifier has the generic characteristics of an Operational voltage Amplifier with the exception that the forward gain characteristic is best described by transconductance rather than voltage gain (open-loop voltage gain is the product of the transconductance and the load resistance, gMRL). When operated into a suitable load resistor and with provisions for feedback, these Amplifiers are well suited for a wide variety of Operational-Amplifier and related applications. In addition, the extremely high output impedance makes these types particularly well suited for service in active filters.

Features
• Low Power Consumption as Low as 100mW Per Amplifier
• Independent Biasing for Each Amplifier
• High Forward Transconductance
• Programmable Range of Input Characteristics
• Low Input Bias and Input Offset Current
• High Input and Output Impedance
• No Effect on Device Under Output Short-Circuit Conditions
• Zener Diode Bias Regulator

Applications
• For Low Power Conventional Operational Amplifier Applications
• Active Filters
• Comparators
• Gyrators
• Mixers
• Modulators
• Multiplexers
• Multipliers
• Strobing and Gating Functions
• Sample and Hold Functions

Description
The CA3060 monolithic Integrated Circuit consists of an array of three independent Operational Transconductance Amplifiers (see Note). This type of Amplifier has the generic characteris tics of an Operational voltage Amplifier with the exception that the forward gain characteristic is best described by transcon ductance rather than voltage gain (open-loop voltage gain is the product of the transconductance and the load resistance, gMRL). When operated into a suitable load resistor and with provisions for feedback, these Amplifiers are well suited for a wide variety of Operational-Amplifier and related applications. In addition, the extremely high output impedance makes these types particularly well suited for service in active filters.

Features
• Low Power Consumption as Low as 100mW Per Amplifier
• Independent Biasing for Each Amplifier
• High Forward Transconductance
• Programmable Range of Input Characteristics
• Low Input Bias and Input Offset Current
• High Input and Output Impedance
• No Effect on Device Under Output Short-Circuit Conditions
• Zener Diode Bias Regulator

Applications
• For Low Power Conventional Operational Amplifier Applications
• Active Filters
• Comparators
• Gyrators
• Mixers
• Modulators
• Multiplexers
• Multipliers
• Strobing and Gating Functions
• Sample and Hold Functions

Description
The CA3060 monolithic Integrated Circuit consists of an array of three independent Operational Transconductance Amplifiers (see Note). This type of Amplifier has the generic characteris tics of an Operational voltage Amplifier with the exception that the forward gain characteristic is best described by transcon ductance rather than voltage gain (open-loop voltage gain is the product of the transconductance and the load resistance, gMRL). When operated into a suitable load resistor and with provisions for feedback, these Amplifiers are well suited for a wide variety of Operational-Amplifier and related applications. In addition, the extremely high output impedance makes these types particularly well suited for service in active filters.

Features
• Low Power Consumption as Low as 100mW Per Amplifier
• Independent Biasing for Each Amplifier
• High Forward Transconductance
• Programmable Range of Input Characteristics
• Low Input Bias and Input Offset Current
• High Input and Output Impedance
• No Effect on Device Under Output Short-Circuit Conditions
• Zener Diode Bias Regulator

Applications
• For Low Power Conventional Operational Amplifier Applications
• Active Filters
• Comparators
• Gyrators
• Mixers
• Modulators
• Multiplexers
• Multipliers
• Strobing and Gating Functions
• Sample and Hold Functions

Overview
The LC7972VA and LC7972VB are dual inverting/noninverting Operational Amplifier ICs that are fabricated in a CMOS process. These ICs provide a programmable offset correction function and a power saving function for use when the Operational Amplifier is unused, both of which can be controlled from a microprocessor interface.

Features
• High input impedance provided by fabrication in a
   CMOS process.
• Low power provided by fabrication in a CMOS process.
• One of two types of Operational Amplifier can be
   selected: inverting (Operational Amplifier 1) or
   noninverting (Operational Amplifier 2)
• Operating supply voltage: 4.9 to 5.2 V
• Package: SSOP20
• Operating temperature: Ta = –30 to +70°C
• The following modes are supported. These are selected
   via port level settings.

GENERAL DESCRIPTION
The ALD1722E is a monolithic rail-to-rail precision CMOS Operational Amplifier with Integrated user programmable EPAD (Electrically Programmable Analog Device) based offset voltage adjustment. The ALD1722E is a direct replacement of the ALD1712 Operational Amplifier, with the added feature of user-programmable offset voltage trimming resulting in significantly enhanced total system performance and user flexibility. EPAD technology is an exclusive ALD design which has been refined for analog applications where precision voltage trimming is necessary to achieve a desired performance. It utilizes CMOS FETs as in-Circuit elements for trimming of offset voltage bias characteristics with the aid of a personal computer under software control. Once programmed, the set parameters are stored indefinitely within the device even after power down. EPAD offers the Circuit designer a convenient and cost-effective trimming solution for achieving the very highest Amplifier/system performance.
The ALD1722E Operational Amplifier features rail-to-rail input and output voltage ranges, tolerance to over-voltage input spikes of 300mV beyond supply rails, high capacitive loading up to 4000pF, extremely low input currents of 0.01pA typical, high open loop voltage gain, useful bandwidth of 1.5MHz, slew rate of 2.1V/µs, and low supply current of 0.8mA.

KEY FEATURES
• EPAD (Electrically Programmable Analog Device)
• User programmable VOS trimmer
• Computer-assisted trimming
• Rail-to-rail input/output
• Compatible with standard EPAD Programmer
• High precision through in-system Circuit precision trimming
• Reduces or eliminates VOS, PSRR, CMRR and TCVOS errors
• System level “calibration” capability
• Application Specific Programming mode
• In-System Programming mode
• Electrically programmable to compensate for external component tolerances
• Achieves 0.01pA input bias current and 25µV input offset voltage simultaneously
• Compatible with industry standard pinout

APPLICATIONS
• Sensor interface Circuits
• Unity gain buffer Amplifier
• Precision analog cable driver
• Transducer biasing Circuits
• Capacitive and charge integration Circuits
• Biochemical probe interface
• Signal conditioning
• Portable instruments
• High source impedance electrode Amplifiers
• Precision Sample and Hold Amplifiers
• Precision current to voltage converter
• Error correction Circuits
• Sensor compensation Circuits
• Precision gain Amplifiers
• Current sources
• Periodic In-system calibration
• System output level shifter