| Data Acquisition | 8 | Active | |
| Digital to Analog Converters (DAC) | 4 | Active | The AD7568 contains eight 12-bit DACs in one monolithic device. The DACs are standard current output with separate VREF, IOUT1, IOUT2and RFBterminals.The AD7568 is a serial input device. Data is loaded usingFSIN, CLKIN and SDIN. One address pin, A0, sets up a device address, and this feature may be used to simplify device loading in a multi-DAC environment.All DACs can be simultaneously updated using the asynchronousLDACinput, and they can be cleared by asserting the asynchronousCLRinput.The AD7568 is housed in a space-saving 44-pin plastic quad flatback and 44-lead PLCC.APPLICATIONSProcess ControlAutomatic Test EquipmentGeneral Purpose Instrumentation |
AD7569CMOS, Complete 8-Bit Analog I/0 Port with Single DAC Output | Interface | 12 | Active | The AD7569 /AD7669is a complete, 8-bit, analog I/O system on a single monolithic chip. The AD7569 contains a high speed successive approximation ADC with 2 µs conversion time, a track/hold with 200 kHz bandwidth, a DAC and an output buffer amplifier with 1 ms settling time. A temperature-compensated 1.25 V bandgap reference provides a precision reference voltage for the ADC and the DAC. The AD7669 is similar, but contains two DACs with output buffer amplifiers.A choice of analog input/output ranges is available. Using a supply voltage of +5 V, input and output ranges of zero to 1.25 V and zero to 2.5 volts may be programmed using the RANGE input pin. Using a ±5 V supply, bipolar ranges of ±1.25 V or ±2.5 V may be programmed.Digital interfacing is via an 8-bit I/O port and standard microprocessor control lines. Bus interface timing is extremely fast, allowing easy connection to all popular 8-bit microprocessors. A separate start convert line controls the track/hold and ADC to give precise control of the sampling period.The AD7569 / AD7669 is fabricated in Linear-Compatible CMOS (LC2MOS), an advanced, mixed technology process combining precision bipolar circuits with low power CMOS logic. The AD7569 is packaged in a 24-pin, 0.3" wide "skinny" DIP, a 24-terminal SOIC and 28-terminal PLCC and LCCC packages. The AD7669 is available in a 28-pin, 0.6" plastic DIP, 28-terminal SOIC and 28-terminal PLCC package. |
AD75748-Bit Analog-to-Digital Converter | Analog to Digital Converters (ADC) | 7 | Active | The AD7574 is an 8-bit microprocessor compatible A/D converter with a parallel interface, 15 µs conversion time, ratiometric capability and runs from a single 5 V supply. |
| Integrated Circuits (ICs) | 9 | Active | |
AD7578CMOS 12-Bit Successive Approximation ADC | Integrated Circuits (ICs) | 4 | Active | The AD7578 is a medium speed, monolithic 12-bit CMOS A/D converter which uses the successive approximation technique to provide a conversion time of 100µs. An auto-zero cycle occurs at the start of each conversion resulting in very low system offset voltages, typically less than 100µV. The device is designed for easy microprocessor interfacing using standard control signals;CS(decoded device address),RD(READ)andWR(WRITE).Conversion results are available in two bytes, 8LSBs and 4MSBs, over an 8-bit three state output bus. Either byte can be read first. Two converter busy flags are available to facilitate polling of the converter's status.The analog input voltage range is 0V to +5V when using a reference voltage of +5V.PRODUCT HIGHLIGHTSThe AD7578 is a complete 12-bit A/D converter in a 24-pinpackage requiring only a few passive components and a voltge referenceAutozero cycle realizes very low offset voltages, typically 100µVStandard microprocessor control signals to allow easy interfacingto most popular 8- and 16-bit processors.Monolithic construction for increased reliability and small 0.3", 24-pin package. |
| Integrated Circuits (ICs) | 4 | Active | |
AD7581CMOSµP-Compatible 8-Bit, 8-Channel DAS | Data Acquisition | 8 | Active | The AD7581 is a microprocessor compatible 8-bit, 8 channel, memory buffered, data acquisition system on a monolithic CMOS chip. It consists of an 8-bit successive approximation A/D Converter, an 8-channel multiplexer, 8×8 dual-port RAM, three-state DATA drivers (for interface), address latches and microprocessor compatible control logic. |
AD7582CMOS 12-Bit Successive Approximation A/D Converter | Integrated Circuits (ICs) | 2 | Active | The AD7582 is a medium speed, 4-channel 12-bit CMOS A/D converter which uses the successive approximation technique to provide a conversion time of 100 µs per channel. An auto-zero cycle occurs at the start of each conversion resulting in very low system offset voltages, typically less than 100 µV. The devices is designed for easy microprocessor interface using standard control signals;CS(decoded device address),RD(READ) andWR, (WRITE). The 4-channel multiplexer is controlled via address inputs A0 and A1.Conversion results are available in two bytes, 8LSB's and 4MSB's, over an 8-bit three state output bus. Either byte can be read first. Two converters busy flags are available to facilitate polling of the converter's status.The analog input voltage range is 0V to +5V when using a reference voltage of +5V. The four analog inputs are all high impedance inputs with tight channel-to-channel matching—typically 0.1LSBs.PRODUCT HIGHLIGHTSThe AD7582 is a complete 4 channel 12-bit A/D converter in either a 28-pin DIP or 28-terminal surface mount package requiring only a few passive components and a voltage reference.Autozero cycle realizes very low offset voltages, typically 100 μV.The four channel input multiplexer (user addressable) features high input impedance and excellent channel-to-channel matching.Standard microprocessor control signals to allow easy interfacing to most popular 8- and 16-bit microprocessors. |
| Interface | 1 | Obsolete | |
