The LTC2489 is a 4-channel (2-channel differential), 16-bit, No Latency ΔΣ™ ADC with Easy Drive technology and a 2-wire, I2C interface. The patented sampling scheme eliminates dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of differential input current. This allows large external source impedances and rail-to-rail input signals to be directly digitized while maintaining exceptional DC accuracy. The LTC2489 includes an integrated oscillator. This device can be configured to measure an external signal from combinations of 4 analog input channels operating in single ended or differential modes. It automatically rejects line frequencies of 50Hz and 60Hz simultaneously. The LTC2489 allows a wide, common mode input range (0V to VCC), independent of the reference voltage. Any combination of single-ended or differential inputs can be selected and the first conversion, after a new channel is selected, is valid. Access to the multiplexer output enables optional external amplifiers to be shared between all analog inputs and auto calibration continuously removes their associated offset and drift.Applications Direct Sensor Digitizer Direct Temperature Measurement Instrumentation Industrial Process Control

The LTC2209 is a 160Msps 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals with input frequencies up to 700MHz. The input range of the ADC can be optimized with the PGA front end.The LTC2209 is perfect for demanding communications applications, with AC performance that includes 77.3dBFS Noise Floor and 100dB spurious free dynamic range (SFDR). Ultra low jitter of 70fsRMS allows undersampling of high input frequencies with excellent noise performance. Maximum DC specs include ±5.5LSB INL, ±1LSB DNL (no missing codes).The digital output can be either differential LVDS or single-ended CMOS. There are two format options for the CMOS outputs: a single bus running at the full data rate or demultiplexed busses running at half data rate. A separate output power supply allows the CMOS output swing to range from 0.5V to 3.6V.The ENC+ and ENC– inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed with a wide range of clock duty cycles.Applications Telecommunications Receivers Cellular Base Stations Spectrum Analysis Imaging Systems

The AD7874 is a four-channel simultaneous sampling, 12-bit data acquisition system. The part contains a high speed 12-bit ADC, on chip reference, on-chip clock and four track/hold amplifiers. This latter feature allows the four input channels to be sampled simultaneously, thus preserving the relative phase information of the four input channels, which is not possible if all four channels share a single track/hold amplifier. This makes the AD7874 ideal for applications such as phased-array sonar and ac motor controllers where the relative phase information is important.The aperture delay of the four track/hold amplifiers is small and specified with minimum and maximum limits. This allows several AD7874s to sample multiple input channels simultaneously without incurring phase errors between signals connected to several devices. A reference output/reference input facility also allows several AD7874s to be driven from the same reference source.In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the AD7874 is also fully specified for dynamic performance parameters including distortion and signal-to-noise ratio.The AD7874 is fabricated in Analog Devices' Linear Compatible CMOWS (LC2MOS) process, a mixed technology process that combines precision bipolar circuits with low-power CMOS logic. The part is available in a 28-pin, 0.6' wide, plastic or hermetic dual-in-line package (DIP), in a 28-terminal leadless ceramic chip carrier (LCCC) and in a 28-pin SOIC.PRODUCT HIGHLIGHTS Simultaneous Sampling of Four Input Channels. Four input channels, each with its own track/hold amplifier, allow simultaneous sampling of input signals. Track/hold acquisition time is 2 µs, and the conversion time per channel is 8 µs, allowing 29 kHz sample rate for all four channels. Tight Aperture Delay Matching. The aperture delay for each channel is small and the aperture delay matching between the four channels is less than 4 ns. Additionally, the aperture delay specification has upper and lower limits allowing multiple AD7874s to sample more than four channels. Fast Microprocessor Interface. The high speed digital interface of the AD7874 allows direct connection to all modern 16-bit microprocessors and digital signal processors.APPLICATIONS Sonar Motor Controllers Adaptive Filters Digital Signal Processing

The AD5330/AD5331/AD5340/AD5341* are single 8-/10-/12-bit DACs. They operate from a 2.5 V to 5.5 V supply consuming just 115 μA at 3 V and feature a power-down mode that further reduces the current to 80 nA. The devices incorporate an on-chip output buffer that can drive the output to both supply rails, but the AD5330, AD5340, and AD5341 allow a choice of buffered or unbuffered reference input. The AD5330/AD5331/AD5340/AD5341 have a parallel interface. CS selects the device and data is loaded into the input registers on the rising edge of WR. The GAIN pin allows the output range to be set at 0 V to VREF or 0 V to 2 × VREF. Input data to the DACs is double-buffered, allowing simultaneous update of multiple DACs in a system using the LDAC pin. An asynchronous CLR input is also provided, which resets the contents of the input register and the DAC register to all zeros. These devices also incorporate a power-on reset circuit that ensures that the DAC output powers on to 0 V and remains there until valid data is written to the device. The AD5330/AD5331/AD5340/AD5341 are available in thin shrink small outline packages (TSSOP).ApplicationsPortable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators Industrial process control * Protected by U.S. Patent Number 5,969,657; other patents pending. Data Sheet, Rev. A, 2/08

The AD5424 / AD5433 / AD5445 are CMOS 8-, 10-, and 12-bitcurrent output digital-to-analog converters (DACs), respectively.These devices operate from a 2.5 V to 5.5 V power supply,making them suitable for battery-powered applications andmany other applications. These DACs utilize data readback,allowing the user to read the contents of the DAC register viathe DB pins. On power-up, the internal register and latches arefilled with 0s and the DAC outputs are at zero scale.As a result of manufacturing with a CMOS submicron process,they offer excellent 4-quadrant multiplication characteristics,with large signal multiplying bandwidths of up to 10 MHz.The applied external reference input voltage (VREF) determines thefull-scale output current. An integrated feedback resistor (RFB)provides temperature tracking and full-scale voltage outputwhen combined with an external I-to-V precision amplifier.While these devices are upgrades of the AD5424 / AD5433 /AD5445 in multiplying bandwidth performance, they have alatched interface and cannot be used in transparent mode.The AD5424 is available in a small, 20-lead LFCSP and a small,16-lead TSSOP, while the AD5433 and AD5445 DACs are availablein a small, 20-lead LFCSP and a small, 20-lead TSSOP.The EVAL-AD5445SDZ evaluation board is available forevaluating DAC performance. For more information, see theUG-333 evaluation board user guide.APPLICATIONS Portable battery-powered applications Waveform generators Analog processing Instrumentation applications Programmable amplifiers and attenuators Digitally controlled calibration Programmable filters and oscillators Composite video Ultrasound Gain, offset, and voltage trimming

The AD5532 is a 32-channel, 14-bit voltage-output DAC with an additional infinite sample-and-hold mode. The selected DAC register is written to via the 3-wire serial interface; VOUT for this DAC is then updated to reflect the new contents of the DAC register. DAC selection is accomplished via Address Bits A0–A4. The output voltage range is determined by the offset voltage at the OFFS_IN pin and the gain of the output amplifier. It is restricted to a range from VSS + 2 V to VDD – 2 V because of the headroom of the output amplifier.The device is operated with AVCC = 5 V ± 5%; DVCC = 2.7 V to 5.25 V; VSS = −4.75 V to −16.5 V; and VDD = 8 V to 16.5 V. The AD5532 requires a stable 3 V reference on REF_IN as well as an offset voltage on OFFS_IN.PRODUCT HIGHLIGHTS 32-channel, 14-bit DAC in one package, guaranteed monotonic. Available in a 74-lead CSPBGA package with a body size of 12 mm ×12 mm. Droopless/infinite sample-and-hold mode.APPLICATIONS Automatic test equipment Optical networks Level setting Instrumentation Industrial control systems Data acquisition Low cost I/O

The AD5532 is a 32-channel, 14-bit voltage-output DAC with an additional infinite sample-and-hold mode. The selected DAC register is written to via the 3-wire serial interface; VOUT for this DAC is then updated to reflect the new contents of the DAC register. DAC selection is accomplished via Address Bits A0–A4. The output voltage range is determined by the offset voltage at the OFFS_IN pin and the gain of the output amplifier. It is restricted to a range from VSS + 2 V to VDD – 2 V because of the headroom of the output amplifier.The device is operated with AVCC = 5 V ± 5%; DVCC = 2.7 V to 5.25 V; VSS = −4.75 V to −16.5 V; and VDD = 8 V to 16.5 V. The AD5532 requires a stable 3 V reference on REF_IN as well as an offset voltage on OFFS_IN.PRODUCT HIGHLIGHTS 32-channel, 14-bit DAC in one package, guaranteed monotonic. Available in a 74-lead CSPBGA package with a body size of 12 mm ×12 mm. Droopless/infinite sample-and-hold mode.APPLICATIONS Automatic test equipment Optical networks Level setting Instrumentation Industrial control systems Data acquisition Low cost I/O

The LTC2704-16/LTC2704-14/LTC2704-12 are serial input, 12-, 14- or 16-bit, voltage output SoftSpan™ DACs that operate from 3V to 5V logic and ±5V to ±15V analog supplies. SoftSpan offers six output spans—two unipolar and four bipolar—fully programmable through the 3-wire SPI serial interface. INL is accurate to 1LSB (2LSB for the LTC2704-16). DNL is accurate to 1LSB for all versions. Readback commands allow verification of any on-chip register in just one 24- or 32- bit instruction cycle. All other commands produce a “rolling readback” response from the LTC2704, dramatically reducing the needed number of instruction cycles. A Sleep command allows any combination of DACs to be powered down. There is also a reset flag and an offset adjustment pin for each channel.Applications Process Control and Industrial Automation Direct Digital Waveform Generation Software Controlled Gain Adjustment Automated Test Equipment

The LTC2208 is a 130Msps, sampling 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals up to input frequencies of 700MHz. The input range of the ADC can be optimized with the PGA front end.The LTC2208 is perfect for demanding communications applications, with AC performance that includes 78dBFS Noise Floor and 100dB spurious free dynamic range (SFDR). Ultra low jitter of 70fsRMS allows undersampling of high input frequencies with excellent noise performance. Maximum DC specs include ±4LSB INL, ±1LSB DNL (no missing codes) over temperature.The digital output can be either differential LVDS or single-ended CMOS. There are two format options for the CMOS outputs: a single bus running at the full data rate or demultiplexed buses running at half data rate. A separate output power supply allows the CMOS output swing to range from 0.5V to 3.3V.The ENC+ and ENC– inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed with a wide range of clock duty cycle. Bits LTC2208-14 14 LTC2208-16 16 Applications Telecommunications Receivers Cellular Base Stations Spectrum Analysis Imaging Systems ATE

The LTC2208 is a 130Msps, sampling 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals up to input frequencies of 700MHz. The input range of the ADC can be optimized with the PGA front end.The LTC2208 is perfect for demanding communications applications, with AC performance that includes 78dBFS Noise Floor and 100dB spurious free dynamic range (SFDR). Ultra low jitter of 70fsRMS allows undersampling of high input frequencies with excellent noise performance. Maximum DC specs include ±4LSB INL, ±1LSB DNL (no missing codes) over temperature.The digital output can be either differential LVDS or single-ended CMOS. There are two format options for the CMOS outputs: a single bus running at the full data rate or demultiplexed buses running at half data rate. A separate output power supply allows the CMOS output swing to range from 0.5V to 3.3V.The ENC+ and ENC– inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed with a wide range of clock duty cycle. Bits LTC2208-14 14 LTC2208-16 16 Applications Telecommunications Receivers Cellular Base Stations Spectrum Analysis Imaging Systems ATE