AD7441Pseudo Differential Input, 1 MSPS, 10-Bit ADC in an 8-Lead SOT-23 | Analog to Digital Converters (ADC) | 3 | Active | The AD7441 /AD7451are, respectively, 10-/12-bit high speed, low power, single-supply, successive approximation (SAR), analog-to-digital converters (ADCs) that feature a pseudo differential analog input. These parts operate from a single 2.7 V to 5.25 V power supply and achieve very low power dissipation at high throughput rates of up to 1 MSPS.The AD7441 / AD7451 contain a low noise, wide bandwidth, differential track-and-hold (T/H) amplifier that handles input frequencies up to 3.5 MHz. The reference voltage for these devices is applied externally to the VREFpin and can range from 100 mV to VDD, depending on the power supply and what suits the application.The conversion process and data acquisition are controlled using overbar:CSand the serial clock, allowing the device to interface with microprocessors or DSPs. The input signals are sampled on the falling edge of overbar:CSwhen the conversion is initiated. The SAR architecture of these parts ensures that there are no pipeline delays.PRODUCT HIGHLIGHTSOperation with 2.7 V to 5.25 V Power Supplies.High Throughput with Low Power Consumption. With a 3 V supply, the AD7441/AD7451 offer 4 mW maximum power consumption for a 1 MSPS throughput rate.Pseudo Differential Analog Input.Flexible Power/Serial Clock Speed Management. The conversion rate is determined by the serial clock, allowing the power to be reduced as the conversion time is reduced through the serial clock speed increase. These parts also feature a shutdown mode to maximize power efficiency at lower throughput rates.Variable Voltage Reference Input.No Pipeline Delays.Accurate Control of Sampling Instant via overbar:CSInput and Once-Off Conversion Control.ENOB > 10 Bits Typically with 500 mV Reference.APPLICATIONSTransducer interfaceBattery-powered systemsData acquisition systemsPortable instrumentation |
AD74412RQuad-Channel, Software Configurable Input/Output | Evaluation Boards | 4 | Active | The AD74412R is a quad-channel software configurable input/output solution for building and process control applications. The AD74412R contains functionality for analog output, analog input, digital input, and resistance temperature detector (RTD) measurements integrated into a single chip solution with an interface compatible with the serial port interface (SPI).The device features a 16-bit, Σ-∆ analog-to-digital converter (ADC) and four configurable, 13-bit digital-to-analog converters (DACs) to provide four configurable input/output channels and a suite of diagnostic functions.There are several modes related to the AD74412R. These modes are voltage output, current output, voltage input, externally powered current input, loop powered current input, external RTD measurement, digital input logic, and loop powered digital input.The AD74412R contains a high accuracy 2.5 V internal reference to drive the DACs and the ADC.Product HighlightsQuad-Channel, Software Configurable Channels.Built In Diagnostics and Alert Features.Robust Architecture. Surge tested to ±1 kV, per the IEC61000-4-5 standard, on the input/output terminals with unshielded cables.ApplicationsBuilding control systemsProcess controlIndustrial automation |
| Evaluation and Demonstration Boards and Kits | 1 | Active | |
AD745Ultralow Noise, High Speed, BiFET Op Amp | Linear | 5 | Active | The AD745 is an ultralow noise, high speed, FET input operational amplifier. It offers both the ultralow voltage noise and high speed generally associated with bipolar input op amps and the very low input currents of FET input devices. Its 20 MHz bandwidth and 12.5 V/µs slew rate makes the AD745 an ideal amplifier for high speed applications demanding low noise and high dc precision. Furthermore, the AD745 does not exhibit an output phase reversal. The AD745's guaranteed, tested maximum input voltage noise of 4 nV/(root)Hz at 10 kHz is unsurpassed for a FET-input monolithic op amp, as is its maximum 1.0 µV p-p noise in a 0.1 Hz to 10 Hz bandwidth. The AD745 also has excellent dc performance with 250 pA maximum input bias current and 0.5 mV maximum offset voltage.The internal compensation of the AD745 is optimized for higher gains, providing a much higher bandwidth and a faster slew rate. This makes the AD745 especially useful as a preamplifier where low level signals require an amplifier that provides both high amplification and wide bandwidth at these higher gains. The AD745 is available in five performance grades. The AD745J and AD745K are rated over the commercial temperature range of 0°C to +70°C. The AD745A and AD745B are rated over the industrial temperature range of -40°C to +85°C. The AD745S is rated over the military temperature range of -55°C to +125°C and is available processed to MIL-STD-883B, Rev. C.The AD745 is available in 8-pin plastic mini-DIP, 8-pin cerdip, 16-pin SOIC, or in chip form. |
AD7450ADifferential Input, 1 MSPS, 12- (AD7450A) & 10-Bit (AD7440) ADCs | Data Acquisition | 12 | Active | TheAD7440/ AD7450A are 10-bit and 12-bit high speed, low power, successive approximation (SAR) analog-to-digital converters with a fully differential analog input. These parts operate from a single 3 V or 5 V power supply and use advanced design techniques to achieve very low power dissipation at throughput rates up to 1 MSPS. The SAR architecture of these parts ensures that there are no pipeline delays.The parts contain a low noise, wide bandwidth, differential track-and-hold amplifier (T/H) that can handle input frequencies up to 3.5 MHz. The reference voltage is applied externally to the VREF pin and can be varied from 100 mV to 3.5 V depending on the power supply and what suits the application. The value of the reference voltage determines the common-mode voltage range of the part. With this truly differential input structure and variable reference input, the user can select a variety of input ranges and bias points.The conversion process and data acquisition are controlled usingCSand the serial clock, allowing the device to interface with microprocessors or DSPs. The input signals are sampled on the falling edge ofCS; the conversion is also initiated at this point. The SAR architecture of these parts ensures that there are no pipeline delays. The AD7440 and the AD7450A use advanced design techniques to achieve very low power dissipation at high throughput rates.PRODUCT HIGHLIGHTSOperation with either 3 V or 5 V power supplies.High throughput with low power consumption.With a 3 V supply, the AD7440 / AD7450A offer 4 mW max power consumption for 1 MSPS throughput.Fully differential analog input.Flexible power/serial clock speed management.The conversion rate is determined by the serial clock, allowing the power to be reduced as the conversion time is reduced through the serial clock speed increase. These parts also feature a shutdown mode to maximize power efficiency at lower throughput rates.Variable voltage reference input.No pipeline delay.Accurate control of the sampling instant via aCSinput and once-off conversion control.ENOB > eight bits typically with 100 mV reference.APPLICATIONSTransducer interfaceBattery-powered systemsData acquisition systemsPortable instrumentationMotor controlMICROWIRE is a trademark of National Semiconductor Corporation. SPI and QSPI are trademarks of Motorola, Inc. |
| Analog to Digital Converters (ADC) | 2 | Active | |
AD7452Differential Input, 555 kSPS, 12-Bit A/D Converter in 8-Lead SOT-23 | Integrated Circuits (ICs) | 1 | Obsolete | The AD74521is a 12-bit, high speed, low power, successive-approximation (SAR) analog-to-digital converter that features a fully differential analog input. This part operates from a single 3 V or 5 V power supply and features throughput rates up to 555 kSPS.The part contains a low noise, wide bandwidth, differential track-and-hold amplifier (T/H) that can handle input frequencies up to 3.5 MHz. The reference voltage is applied externally to the VREFpin and can be varied from 100 mV to 3.5 V depending on the power supply and what suits the application. The value of the reference voltage determines the common mode voltage range of the part. With this truly differential input structure and variable reference input, the user can select a variety of input ranges and bias points.The conversion process and data acquisition are controlled usingCSand the serial clock allowing the device to interface with Microprocessors or DSPs. The input signals are sampled on the falling edge ofCSand the conversion is also initiated at this point.The SAR architecture of this part ensures that there are no pipeline delays.The AD7452 uses advanced design techniques to achieve very low power dissipation.PRODUCT HIGHLIGHTSOperation with Either 3 V or 5 V Power Supplies.High Throughput with Low Power Consumption. With a 3 V supply, the AD7452 offers 3.3 mW max power consumption for 555 kSPS throughput.Fully Differential Analog Input.Flexible Power/Serial Clock Speed Management. The conversion rate is determined by the serial clock, allowing the power to be reduced as the conversion time is reduced through the serial clock speed increase. This part also features a shutdown mode to maximize power efficiency at lower throughput rates.Variable Voltage Reference Input.No Pipeline Delay.Accurate Control of the Sampling Instant via aCSInput and Once-Off Conversion Control.ENOB > 8 Bits Typically with 100 mV Reference. |
AD7453Pseudo Differential, 555 kSPS, 12-Bit A/D Converter in 8-Lead SOT-23 | Data Acquisition | 1 | Active | The AD7453 is a 12-bit, low-power, successive-approximation (SAR) analog-to-digital converters that features a pseudo differential analog input. This part operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 555 kSPS.The part contains a low-noise, wide bandwidth, differential track and hold amplifier (T/H) which can handle input frequencies in excess of 1 MHz with the -3 dB point being 20 MHz typically. The reference voltage is applied externally to the VREFpin and can be varied from 100 mV to 3.5 V depending on the power supply and what suits the application.The conversion process and data acquisition are controlled usingCSand the serial clock allowing the device to interface with Microprocessors or DSPs. The input signals are sampled on the falling edge ofCSand the conversion is also initiated at this point.The SAR architecture of this part ensures that there are no pipeline delays.The AD7453 uses advanced design techniques to achieve very low power dissipation at high throughput rates. |
AD746Dual Precision, 500 ns Settling, BiFET Op Amp | Evaluation Boards | 4 | Active | The AD746 is a dual operational amplifier, consisting of two AD744 BiFET op amps on a single chip. These precision monolithic op amps offer excellent dc characteristics plus rapid settling times, high slew rates and ample bandwidths. In addition, the AD746 provides the close matching ac and dc characteristics inherent to amplifiers sharing the same monolithic die.The single pole response of the AD746 provides fast settling: 500 ns to 0.01%. This feature, combined with its high dc precision, makes it suitable for use as a buffer amplifier for 12- or 14-bit DACs and ADCs. Furthermore, the AD746's low total harmonic distortion (THD) level of 0.0001% and very close matching ac characteristics make it an ideal amplifier for many demanding audio applications.The AD746 is internally compensated for stable operation as a unity gain inverter or as a noninverting amplifier with a gain of 2 or greater. It is available in four performance grades. The AD746J is rated over the commercial temperature range of 0 to +70°C. The AD746A and AD746B are rated over the industrial temperature range of -40°C to +85°C. The AD746S is rated over the military temperature range of -55°C to +125°C and is available processed to MIL-STD-883B, Rev. C.The AD746 is available in three 8-pin packages: plastic mini DIP, hermetic cerdip and surface mount (SOIC).APPLICATIONSDual Output Buffers for 12- and 14-Bit DACsInput Buffers for Precision ADCs, Wideband Preamplifiers and Low Distortion Audio Circuitry |
AD74661.6 V Micro-Power 12-Bit ADC | Analog to Digital Converters (ADC) | 7 | Active | The AD7466 / AD7467 / AD7468 are 12-/10-/8-bit, high speed, low power, successive approximation analog-to-digital converters (ADCs), respectively. The parts operate from a single 1.6 V to 3.6 V power supply and feature throughput rates up to 200 kSPS with low power dissipation. The parts contain a low noise, wide bandwidth track-and-hold amplifier, which can handle input frequencies in excess of 3 MHz.The conversion process and data acquisition are controlled usingCSand the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge ofCS, and the conversion is also initiated at this point. There are no pipeline delays associated with the part.The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC. Thus, the analog input range for the part is 0 V to VDD. The conversion rate is determined by the SCLK.PRODUCT HIGHLIGHTSSpecified for supply voltages of 1.6 V to 3.6 V12-, 10-, and 8-bit ADCs in SOT-23 and MSOP packagesHigh throughput rate with low power consumption. Power consumption in normal mode of operation at 100 kSPS and 3 V is 0.9 mW maximumFlexible power/serial clock speed management. The conversion rate is determined by the serial clock, allowing the conversion time to be reduced through increases in the serial clock speed. Automatic power-down after conversion allows the average power consumption to be reduced when in power-down. Current consumption is 0.1 μA maximum and 8 nA typically when in power-downReference derived from the power supplyNo pipeline delayThe part features a standard successive approximation ADC with accurate control of conversions via aCSinputAPPLICATIONSBattery-powered systemsMedical instrumentsRemote data acquisitionIsolated data acquisition |
