Analog Devices Inc./Maxim Integrated

The MAX1415/MAX1416 low-power, 2-channel, serial-output analog-to-digital converters (ADCs) use a sigma-delta modulator with a digital filter to achieve 16-bit resolution with no missing codes. These ADCs are pin-compatible upgrades to the MX7705/AD7705. The MAX1415/MAX1416 feature an internal oscillator (1MHz or 2.4576MHz), an on-chip input buffer, and a programmable gain amplifier (PGA). The devices offer an SPI™-/QSPI™-/MICROWIRE™-compatible serial interface.The MAX1415/MAX1416 are available in 16-pin PDIP, SO, and TSSOP packages.ApplicationsFlow and Gas MetersIndustrial InstrumentsLoop-Powered SystemsMedical InstrumentationPressure TransducersRTD MeasurementsStrain-Gauge MeasurementsThermocouple MeasurementsWeigh Scales

The MAX1421 is a 3.3V, 12-bit analog-to-digital converter (ADC), featuring a fully-differential input, pipelined, 12-stage ADC architecture with wideband track-and-hold (T/H) and digital error correction incorporating a fully-differential signal path. The MAX1421 is optimized for low-power, high-dynamic performance applications in imaging and digital communications. The converter operates from a single 3.3V supply, consuming only 188mW while delivering a typical signal-to-noise ratio (SNR) of 66dB at an input frequency of 15MHz and a sampling frequency of 40Msps. The fully-differential input stage has a small signal -3dB bandwidth of 400MHz and may be operated with single-ended inputs.An internal 2.048V precision bandgap reference sets the full-scale range of the ADC. A flexible reference structure accommodates an internal or externally applied buffered or unbuffered reference for applications requiring increased accuracy or a different input voltage range.In addition to low operating power, the MAX1421 features two power-down modes, a reference power-down and a shutdown mode. In reference power-down, the internal bandgap reference is deactivated, resulting in a typical 2mA supply current reduction. For idle periods, a full shutdown mode is available to maximize power savings.The MAX1421 provides parallel, offset binary, CMOS-compatible three-state outputs.The MAX1421 is available in a 7mm x 7mm, 48-pin LQFP package, and is specified over the commercial (0°C to +70°C) and the extended industrial (-40°C to +85°C) temperature ranges.Pin-compatible higher- and lower-speed versions of the MAX1421 are also available. Please refer to the MAX1420 data sheet for a frequency of 60Msps and the MAX1422 data sheet for a frequency of 20Msps.ApplicationsCCD Pixel ProcessingData AcquisitionIF and Baseband DigitizationMedical Ultrasound ImagingRadar

The MAX1422 3.3V, 12-bit analog-to-digital converter (ADC) features a fully differential input, pipelined, 12- stage ADC architecture with wideband track-and-hold (T/H) and digital error correction incorporating a fully-differential signal path. The MAX1422 is optimized for lowpower, high dynamic performance applications in imaging and digital communications. The converter operates from a single 3.3V supply, consuming only 137mW while delivering a 67dB (typ) signal-to-noise ratio (SNR) at a 5MHz input frequency and a 20Msps sampling frequency. The fully-differential input stage has a small signal -3dB bandwidth of 400MHz and may be operated with single-ended inputs.An internal 2.048V precision bandgap reference sets the ADCs full-scale range. A flexible reference structure accommodates an internally or externally applied buffered or unbuffered reference for applications requiring increased accuracy or a different input voltage range.In addition to low operating power, the MAX1422 features two power-down modes, a reference power-down, and a shutdown mode. In reference power-down, the internal bandgap reference is deactivated, resulting in a 2mA (typ) supply current reduction. For idle periods, a full shutdown mode is available to maximize power savings.The MAX1422 provides parallel, offset binary, CMOS-compatible three-state outputs.The MAX1422 is available in a 7mm x 7mm x 1.4mm, 48-pin TQFP package and is specified over the commercial (0°C to +70°C) and extended industrial (-40°C to +85°C) temperature ranges.Pin-compatible higher-speed versions of the MAX1422 are also available. Please refer to the MAX1421 data sheet for 40Msps and the MAX1420 data sheet for 60Msps.ApplicationsCCD Pixel ProcessingData AcquisitionIF and Baseband DigitizationMedical Ultrasound ImagingRadar

The MAX1426 10-bit, monolithic analog-to-digital converter (ADC) is capable of a 10Msps sampling rate. This device features an internal track-and-hold (T/H) amplifier for excellent dynamic performance; at the same time, it minimizes the number of external components. Low input capacitance of only 8pF minimizes input drive requirements. A wide input bandwidth (up to 150MHz) makes this device suitable for digital RF/IF downconverter applications employing undersampling techniques.The MAX1426 employs a differential pipelined architecture with a wideband T/H amplifier to maximize throughput while limiting power consumption to only 156mW. The MAX1426 generates an internal +2.5V reference that supplies three additional reference voltages (+3.25V, +2.25V, and +1.25V). These reference voltages provide a differential input range of +2V to -2V. The analog inputs are biased internally to correct the DC level, eliminating the need for external biasing on AC-coupled applications.A separate +3V digital logic supply input allows for separation of digital and analog circuitry. The output data is in two's complement format. The MAX1426 is available in the space-saving 28-pin SSOP package. For a pin-compatible version at a higher data rate, refer to the MAX1424 or MAX1425.ApplicationsCCD Pixel ProcessingIF and Baseband DigitizationIR Focal Plane ArraysMedical Ultrasound ImagingRadarSet-Top Boxes

The MAX1434 octal, 10-bit analog-to-digital converter (ADC) features fully differential inputs, a pipelined architecture, and digital error correction incorporating a fully differential signal path. This ADC is optimized for low-power and high-dynamic performance in medical imaging instrumentation and digital communications applications. The MAX1434 operates from a 1.8V single supply and consumes only 767mW (96mW per channel) while delivering a 61dB (typ) signal-to-noise ratio (SNR) at a 5.3MHz input frequency. In addition to low operating power, the MAX1434 features a power-down mode for idle periods.An internal 1.24V precision bandgap reference sets the full-scale range of the ADC. A flexible reference structure allows the use of an external reference for applications requiring increased accuracy or a different input voltage range. The reference architecture is optimized for low noise.A single-ended clock controls the data-conversion process. An internal duty-cycle equalizer compensates for wide variations in clock duty cycle. An on-chip PLL generates the high-speed serial low-voltage differential signal (LVDS) clock.The MAX1434 has self-aligned serial LVDS outputs for data, clock, and frame-alignment signals. The output data is presented in two's complement or binary format.The MAX1434 offers a maximum sample rate of 50Msps. See thePin-Compatible Versionstable in the full data sheet for 12-bit versions. This device is available in a small, 14mm x 14mm x 1mm, 100-pin TQFP package with exposed pad and is specified for the extended industrial (-40°C to +85°C) temperature range.ApplicationsInstrumentationMultichannel CommunicationsUltrasound and Medical Imaging

The MAX1436B octal, 12-bit analog-to-digital converter (ADC) features fully differential inputs, a pipelined architecture, and digital error correction incorporating a fully differential signal path. This ADC is optimized for low-power and high-dynamic performance in medical imaging instrumentation and digital communications applications. The MAX1436B operates from a 1.8V single supply and consumes only 743mW (93mW per channel) while delivering a 69.9dB (typ) signal-to-noise ratio (SNR) at a 5.3MHz input frequency. In addition to low operating power, the MAX1436B features a low-power standby mode for idle periods.An internal 1.24V precision bandgap reference sets the full-scale range of the ADC. A flexible reference structure allows the use of an external reference for applications requiring increased accuracy or a different input voltage range. The reference architecture is optimized for low noise.A single-ended clock controls the data-conversion process. An internal duty-cycle equalizer compensates for wide variations in clock duty cycle. An on-chip PLL generates the high-speed serial low-voltage differential signal (LVDS) clock.The MAX1436B has self-aligned serial LVDS outputs for data, clock, and frame-alignment signals. The output data is presented in two's complement or binary format.The MAX1436B offers a maximum sample rate of 40Msps. See thePin-Compatible Versionstable in the full data sheet for higher-speed versions. This device is available in a small, 14mm x 14mm x 1mm, 100-pin TQFP package with exposed pad and is specified for the extended industrial (-40°C to +85°C) temperature range.ApplicationsInstrumentationMultichannel CommunicationsUltrasound and Medical Imaging

The MAX1437 octal, 12-bit analog-to-digital converter (ADC) features fully differential inputs, a pipelined architecture, and digital error correction incorporating a fully differential signal path. This ADC is optimized for low-power and high-dynamic performance in medical imaging instrumentation and digital communications applications. The MAX1437 operates from a 1.8V single supply and consumes only 768mW (96mW per channel) while delivering a 69.9dB (typ) signal-to-noise ratio (SNR) at a 5.3MHz input frequency. In addition to low operating power, the MAX1437 features a power-down mode for idle periods.An internal 1.24V precision bandgap reference sets the full-scale range of the ADC. A flexible reference structure allows the use of an external reference for applications requiring increased accuracy or a different input voltage range. The reference architecture is optimized for low noise.A single-ended clock controls the data-conversion process. An internal duty-cycle equalizer compensates for wide variations in clock duty cycle. An on-chip PLL generates the high-speed serial low-voltage differential signal (LVDS) clock.The MAX1437 has self-aligned serial LVDS outputs for data, clock, and frame-alignment signals. The output data is presented in two's complement or binary format.The MAX1437 offers a maximum sample rate of 50Msps. See thePin-Compatible Versionstable in the full data sheet for higher-and lower-speed versions. This device is available in a small, 14mm x 14mm x 1mm, 100-pin TQFP package with exposed pad and is specified for the extended industrial (-40°C to +85°C) temperature range.ApplicationsInstrumentationMultichannel CommunicationsUltrasound and Medical Imaging