The AD976 and AD976A are high-speed, low-power 16-bit A/D converters with each operating from a single 5 V supply. The AD976A has a throughput rate of 200 ksps whereas the AD976 has a throughput rate of 100 ksps. Each part contains a successive approximation, switched capacitor ADC, an internal 2.5 V reference, and a high-speed parallel interface. The AD976 and AD976A dissipate a maximum of 100 mW. The ADC is factory calibrated to minimize all linearity errors. The analog full-scale input is the standard industrial range of ±10 V.The AD976 and AD976A are comprehensively tested for ac parameters such as SNR and THD, as well as the more traditional parameters of offset, gain and linearity. The AD976 and AD976A are fabricated on Analog Devices' proprietary BiCMOS process, which has high performance bipolar devices along with CMOS transistors. The AD976 and AD976A are available in skinny 28-pin DIP, SSOP and SOIC packages.

The AD976 and AD976A are high-speed, low-power 16-bit A/D converters with each operating from a single 5 V supply. The AD976A has a throughput rate of 200 ksps whereas the AD976 has a throughput rate of 100 ksps. Each part contains a successive approximation, switched capacitor ADC, an internal 2.5 V reference, and a high-speed parallel interface. The AD976 and AD976A dissipate a maximum of 100 mW. The ADC is factory calibrated to minimize all linearity errors. The analog full-scale input is the standard industrial range of ±10 V.The AD976 and AD976A are comprehensively tested for ac parameters such as SNR and THD, as well as the more traditional parameters of offset, gain and linearity. The AD976 and AD976A are fabricated on Analog Devices' proprietary BiCMOS process, which has high performance bipolar devices along with CMOS transistors. The AD976 and AD976A are available in skinny 28-pin DIP, SSOP and SOIC packages.

The AD421 is a complete, loop-powered, digital to 4-20 mA converter, designed to meet the needs of smart transmitter manufacturers in the Industrial Control industry. It provides a high precision, fully integrated, low cost solution in a compact 16-pin package. The AD421 is ideal for extending the resolution of smart 4-20 mA transmitters at very low cost. The AD421 includes a selectable regulator that is used to power itself and other devices in the transmitter. This regulator provides either a +5 V, +3.3 V or +3 V regulated output voltage. The part also contains +1.25 V and +2.5 V precision references. The AD421 thus eliminates the need for a discrete regulator and voltage reference. The only external components required are a number of passive components and a pass transistor to span large loop voltages.The AD421 can be used with standard HART FSK protocol communication circuitry without any degradation in specified performance. The high speed serial interface is capable of operating at 10 Mbps and allows for simple connection to commonly-used microprocessors and microcontrollers via a standard three-wire serial interface.The sigma-delta architecture of the DAC guarantees 16-bit monotonicity while the integral nonlinearity for the AD421 is ±0.01%. The part provides a zero scale 4 mA output current with ±0.1% offset error and a 20 mA full-scale output current with ±0.2% gain error.The AD421 is available in a 16-pin, 0.3 inch-wide, plastic DIP and a 16-lead, 0.3 inch-wide, SOIC package. The part is specified over the industrial temperature range of -40°C to +85°C.

The AD660 DACPORT® is a complete 16-bit monolithic digital-to-analog converter with an on-board voltage reference, double-buffered latches, and an output amplifier. It is manufactured on the Analog Devices, Inc., BiMOS II process. This process allows the fabrication of low power CMOS logic functions on the same chip as high precision bipolar linear circuitry.The AD660 architecture ensures 15-bit monotonicity over time and temperature. Integral and differential nonlinearity is maintained at ±0.003% maximum. The on-chip output amplifier provides a voltage output settling time of 10 μs to within ½ LSB for a full-scale step.The AD660 has an extremely flexible digital interface. Data can be loaded into the AD660 in serial mode or as two 8-bit bytes. This is made possible by two digital input pins that have dual functions. The serial mode input format is pin selectable to be MSB or LSB first. The serial output pin allows the user to daisy-chain several AD660 devices by shifting the data through the input latch into the next DAC, thus minimizing the number of control lines required to SIN, CS and LDAC. The byte mode input format is also flexible in that the high byte or low byte data can be loaded first. The double buffered latch structure eliminates data skew errors and provides for simultaneous updating of DACs in a multiDAC system.The AD660 is available in five grades. AN and BN versions are specified from −40°C to +85°C and are packaged in a 24-lead300 mil plastic DIP. AR and BR versions are also specified from −40°C to +85°C and are packaged in a 24-lead SOIC. The SQ version is packaged in a 24-lead 300 mil CERDIP package and is also available compliant to MIL-STD-883. Refer to the AD660SQ/883B military data sheet for specifications and test conditions.PRODUCT HIGHLIGHTS The AD660 is a complete 16-bit DAC, with a voltage reference, double-buffered latches, and an output amplifier on a single chip. The internal buried Zener reference is laser trimmed to 10.000 V with a ±0.1% maximum error and a temperature drift performance of ±15 ppm/°C. The reference is available for external applications. The output range of the AD660 is pin programmable and can be set to provide a unipolar output range of 0 V to 10 V or a bipolar output range of −10 V to +10 V. No external components are required. The AD660 is both dc and ac specified. DC specifications include ±1 LSB INL and ±1 LSB DNL errors. AC specifications include 0.009% THD + N and 83 dB SNR. The double-buffered latches on the AD660 eliminate data skew errors and allow simultaneous updating of DACs in multiDAC applications. The clear function can asynchronously set the output to 0 V regardless of whether the DAC is in unipolar or bipolar mode. The output amplifier settles within 10 μs to ±½ LSB for a full-scale step and within 2.5 μs for a 1 LSB step over temperature. The output glitch is typically 15 nV-s when a full-scale step is loaded. Data Sheet, Rev. B, 6/08

The AD660 DACPORT® is a complete 16-bit monolithic digital-to-analog converter with an on-board voltage reference, double-buffered latches, and an output amplifier. It is manufactured on the Analog Devices, Inc., BiMOS II process. This process allows the fabrication of low power CMOS logic functions on the same chip as high precision bipolar linear circuitry.The AD660 architecture ensures 15-bit monotonicity over time and temperature. Integral and differential nonlinearity is maintained at ±0.003% maximum. The on-chip output amplifier provides a voltage output settling time of 10 μs to within ½ LSB for a full-scale step.The AD660 has an extremely flexible digital interface. Data can be loaded into the AD660 in serial mode or as two 8-bit bytes. This is made possible by two digital input pins that have dual functions. The serial mode input format is pin selectable to be MSB or LSB first. The serial output pin allows the user to daisy-chain several AD660 devices by shifting the data through the input latch into the next DAC, thus minimizing the number of control lines required to SIN, CS and LDAC. The byte mode input format is also flexible in that the high byte or low byte data can be loaded first. The double buffered latch structure eliminates data skew errors and provides for simultaneous updating of DACs in a multiDAC system.The AD660 is available in five grades. AN and BN versions are specified from −40°C to +85°C and are packaged in a 24-lead300 mil plastic DIP. AR and BR versions are also specified from −40°C to +85°C and are packaged in a 24-lead SOIC. The SQ version is packaged in a 24-lead 300 mil CERDIP package and is also available compliant to MIL-STD-883. Refer to the AD660SQ/883B military data sheet for specifications and test conditions.PRODUCT HIGHLIGHTS The AD660 is a complete 16-bit DAC, with a voltage reference, double-buffered latches, and an output amplifier on a single chip. The internal buried Zener reference is laser trimmed to 10.000 V with a ±0.1% maximum error and a temperature drift performance of ±15 ppm/°C. The reference is available for external applications. The output range of the AD660 is pin programmable and can be set to provide a unipolar output range of 0 V to 10 V or a bipolar output range of −10 V to +10 V. No external components are required. The AD660 is both dc and ac specified. DC specifications include ±1 LSB INL and ±1 LSB DNL errors. AC specifications include 0.009% THD + N and 83 dB SNR. The double-buffered latches on the AD660 eliminate data skew errors and allow simultaneous updating of DACs in multiDAC applications. The clear function can asynchronously set the output to 0 V regardless of whether the DAC is in unipolar or bipolar mode. The output amplifier settles within 10 μs to ±½ LSB for a full-scale step and within 2.5 μs for a 1 LSB step over temperature. The output glitch is typically 15 nV-s when a full-scale step is loaded. Data Sheet, Rev. B, 6/08

The AD7820 is a high speed, microprocessor-compatible 8-bit ADC which uses a half-flash conversion technique to achieve a conversion time of 1.36 µs. The converter has a 0 V to +5 V analog input voltage range with a single +5 V supply.The half-flash technique consists of 31 comparators, a most significant 4-bit ADC and a least significant 4-bit ADC. The input to the AD7820 is tracked and held by the input sampling circuitry, eliminating the need for an external sample-and-hold for signals with slew rates less than 100 mV/µs.The part is designed for ease of microprocessor interface with the AD7820 appearing as a memory location or I/O port without the need for external interfacing logic. All digital outputs use latched, three-state output buffer circuitry to allow direct connection to a microprocessor data bus or system input port. A non-three state overflow output is also provided to allow cascading of devices to give higher resolution.

The AD7943, AD7945 and AD7948 are fast 12-bit multiplying DACs that operate from a single +5 V supply (Normal Mode) and a single +3.3 V to +5 V supply (Biased Mode). The AD7943 has a serial interface, the AD7945 has a 12-bit parallel interface, and the AD7948 has an 8-bit byte interface. They will replace the industry-standard AD7543, AD7545 and AD7548 in many applications, and they offer superior speed and power consumption performance.The AD7943 is available in 16-pin DIP, 16-pin SOP (Small Outline Package) and 20-pin SSOP (Shrink Small Outline Package).The AD7945 is available in 20-pin DIP, 20-pin SOP and 20-pin SSOP.The AD7948 is available in 20-pin DIP, 20-pin SOP and 20-pin SSOP.APPLICATIONS Battery-Powered Instrumentation Laptop Computers Upgrades for All 754x Series DACs (5 V Designs)

The DAC8512 is a complete serial input, 12-bit, voltage output digital-to-analog converter designed to operate from a single +5 V supply. It contains the DAC, input shift register and latches, reference and a rail-to-rail output amplifier. Built using a CBCMOS process, these monolithic DACs offer the user low cost, and ease of use in +5 V only systems.Coding for the DAC8512 is natural binary with the MSB loaded first. The output op amp can swing to either rail and is set to a range of 0 V to +4.095 V-for a one-millivolt-per-bit resolution. It is capable of sinking and sourcing 5 mA. An on-chip reference is laser trimmed to provide an accurate full-scale output voltage of 4.095 V.Serial interface is high speed, three-wire, DSP compatible with data in (SDI), clock(CLK) and load strobe (LD). There is also a chip-select pin for connecting multiple DACs.A CLR input sets the output to zero scale at power on or upon user demand. The DAC8512 is specified over the extended industrial (-40°C to +85°C) temperature range. DAC8512s are available in plastic DIPs and SO-8 surface mount packages.

The LTC2433-1 is a differential input micropower 16-bit No Latency ∆ΣTM analog-to-digital converter with an integrated oscillator. It provides 0.12LSB INL and 1.45µV RMS noise independent of VREF. It uses delta-sigma technology and provides single conversion settling of the digital filter. Through a single pin, the LTC2433-1 can be configured for better than 87dB input differential mode rejection at 50Hz and 60Hz ±2%, or it can be driven by an external oscillator for a user defined rejection frequency. The internal oscillator requires no external frequency setting components.The converter accepts any external differential reference voltage from 0.1V to VCC for flexible ratiometric and remote sensing measurement configurations. The fullscale differential input range is from – 0.5 • VREF to 0.5 • VREF. The reference common mode voltage, VREFCM, and the input common mode voltage, VINCM, may be independently set anywhere between GND and VCC. The DC common mode input rejection is better than 140dB.The LTC2433-1 communicates through a flexible 3-wire digital interface which is compatible with SPI and MICROWIRE protocols.Applications Direct Sensor Digitizer Weight Scales Direct Temperature Measurement Gas Analyzers Strain-Gage Transducers Instrumentation Data Acquisition Industrial Process Control

The DAC08 series of 8-bit monolithic digital-to-analog convertersprovide very high speed performance coupled with low costand outstanding applications flexibility.Advanced circuit design achieves 85 ns settling times with verylow glitch energy and at low power consumption. Monotonicmultiplying performance is attained over a wide 20 to 1 referencecurrent range. Matching to within 1 LSB between reference andfull-scale currents eliminates the need for full-scale trimming inmost applications.Direct interface to all popular logic families with full noiseimmunity is provided by the high swing, adjustable thresholdlogic input.High voltage compliance complementary current outputs areprovided, increasing versatility and enabling differential operationto effectively double the peak-to-peak output swing. In manyapplications, the outputs can be directly converted to voltagewithout the need for an external op amp. All DAC08 series modelsguarantee full 8-bit monotonicity, and nonlinearities as tight as±0.1% over the entire operating temperature range are available.Device performance is essentially unchanged over the ±4.5 V to±18 V power supply range, with 33 mW power consumptionattainable at ±5 V supplies.The compact size and low power consumption make the DAC08attractive for portable and military/aerospace applications;devices processed to MIL-STD-883, Level B are available.DAC08 applications include 8-bit, 1 µs A/D converters, servomotor and pen drivers, waveform generators, audio encodersand attenuators, analog meter drivers, programmable powersupplies, LCD display drivers, high speed modems, and otherapplications where low cost, high speed, and completeinput/output versatility are required.