Analog Devices Inc./Maxim Integrated

The MAX11335–MAX11340 are 12-/10-bit with external reference and 500kHz, full-linear-bandwidth, high-speed, low-power, serial-output successive approximation register (SAR) analog-to-digital converters (ADCs). MAX11335–MAX11340 provide external access to the output of the integrated mux and ADC input, to simplify conditioning. MAX11335–MAX11340 include both internal and external clock modes. These devices feature scan mode in both internal and external clock modes. The internal clock mode features internal averaging to increase SNR. The external clock mode features the SampleSet™ technology, a user-programmable analog input channel sequencer. The SampleSet approach provides greater sequencing flexibility for multichannel applications while alleviating significant microcontroller or DSP (controlling unit) communication overhead.External pins provide access to the output of the multiplexer and ADC inputs to simplify multichannel signal conditioning. The internal clock mode features an integrated FIFO allowing data to be sampled at high speeds and then held for readout at any time or at a lower clock rate. Internal averaging is also supported in internal clock mode improving SNR for noisy input signals. The devices feature analog input channels that can be configured to be single-ended inputs, fully differential pairs, or pseudo-differential inputs with respect to one common input. The MAX11321–MAX11328 operate from a 2.35V to 3.6V supply and consume only 4.2mW at 500ksps.The MAX11335–MAX11340 include AutoShutdown™, fast wake-up, and a high-speed 3-wire serial interface. The devices feature full power-down mode for optimal power management. The 8MHz, 3-wire serial interface directly connects to SPI, QSPI™, and MICROWIRE® devices without external logic.Excellent dynamic performance, low voltage, low power, ease of use, and small package size make these converters ideal for portable battery-powered data-acquisition applications, and for other applications that demand low power consumption and small space.The MAX11335–MAX11340 are available in 32-pin, 5mm x 5mm, TQFN packages and operate over the -40°C to +125°C temperature range.ApplicationsBattery-Powered InstrumentsHigh-Speed Closed-Loop SystemsHigh-Speed Data Acquisition SystemsIndustrial Control SystemsMedical InstrumentationPortable Systems

The MAX11335–MAX11340 are 12-/10-bit with external reference and 500kHz, full-linear-bandwidth, high-speed, low-power, serial-output successive approximation register (SAR) analog-to-digital converters (ADCs). MAX11335–MAX11340 provide external access to the output of the integrated mux and ADC input, to simplify conditioning. MAX11335–MAX11340 include both internal and external clock modes. These devices feature scan mode in both internal and external clock modes. The internal clock mode features internal averaging to increase SNR. The external clock mode features the SampleSet™ technology, a user-programmable analog input channel sequencer. The SampleSet approach provides greater sequencing flexibility for multichannel applications while alleviating significant microcontroller or DSP (controlling unit) communication overhead.External pins provide access to the output of the multiplexer and ADC inputs to simplify multichannel signal conditioning. The internal clock mode features an integrated FIFO allowing data to be sampled at high speeds and then held for readout at any time or at a lower clock rate. Internal averaging is also supported in internal clock mode improving SNR for noisy input signals. The devices feature analog input channels that can be configured to be single-ended inputs, fully differential pairs, or pseudo-differential inputs with respect to one common input. The MAX11321–MAX11328 operate from a 2.35V to 3.6V supply and consume only 4.2mW at 500ksps.The MAX11335–MAX11340 include AutoShutdown™, fast wake-up, and a high-speed 3-wire serial interface. The devices feature full power-down mode for optimal power management. The 8MHz, 3-wire serial interface directly connects to SPI, QSPI™, and MICROWIRE® devices without external logic.Excellent dynamic performance, low voltage, low power, ease of use, and small package size make these converters ideal for portable battery-powered data-acquisition applications, and for other applications that demand low power consumption and small space.The MAX11335–MAX11340 are available in 32-pin, 5mm x 5mm, TQFN packages and operate over the -40°C to +125°C temperature range.ApplicationsBattery-Powered InstrumentsHigh-Speed Closed-Loop SystemsHigh-Speed Data Acquisition SystemsIndustrial Control SystemsMedical InstrumentationPortable Systems

The MAX1134/MAX1135 are 150ksps, 16-bit ADCs. These serially interfaced ADCs connect directly to SPI™, QSPI™, and MICROWIRE™ devices without external logic. They combine an input scaling network, internal track/hold (T/H), clock, and three general-purpose digital output pins (for external multiplexer or PGA control) in a 20-pin SSOP package. The excellent dynamic performance (THD>90dB), high speed (150ksps in bipolar mode), and low power (8.0mA) of these ADCs make them ideal for applications such as industrial process control, instrumentation, and medical applications.The MAX1134 accepts input signals of 0 to +6V (unipolar) or ±6V (bipolar), while the MAX1135 accepts input signals of 0 to +2.048V (unipolar) or ±2.048V (bipolar). Operating from a single 3.135V to 3.465V analog and digital supply, power-down modes reduce current consumption to 0.15mA at 10ksps and further reduce supply current to less than 20µA at slower data rates.A serial strobe output (SSTRB) allows direct connection to the TMS320 family digital-signal processors. The MAX1134/MAX1135 user can select either the internal clock or an external serial-interface clock for the ADC to perform analog-to-digital conversions.The MAX1134/MAX1135 feature internal calibration circuitry to correct linearity and offset errors. On-demand calibration allows the user to optimize performance. Three user-programmable logic outputs are provided for the control of an 8-channel mux or PGA.The MAX1134/MAX1135 are available in a 20-pin SSOP package and are fully specified over the -40°C to +85°C temperature range.ApplicationsData AcquisitionIndustrial I/O ModulesIndustrial Process ControlsMedical InstrumentsPortable Battery-Powered Equipment

The MAX1136–MAX1139 low-power, 10-bit, multichannel analog-to-digital converters (ADCs) feature internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. These devices operate from a single supply of 2.7V to 3.6V (MAX1137/MAX1139) or 4.5V to 5.5V (MAX1136/MAX1138) and require only 670µA at the maximum sampling rate of 94.4ksps. Supply current falls below 230µA for sampling rates under 46ksps. AutoShutdown™ powers down the devices between conversions, reducing supply current to less than 1µA at low throughput rates. The MAX1136/MAX1137 have four analog input channels each, while the MAX1138/MAX1139 have 12 analog input channels each. The fully differential analog inputs are software configurable for unipolar or bipolar, and single ended or differential operation.The full-scale analog input range is determined by the internal reference or by an externally applied reference voltage ranging from 1V to VDD. The MAX1137/MAX1139 feature a 2.048V internal reference and the MAX1136/MAX1138 feature a 4.096V internal reference. The MAX1136/MAX1137 are available in an 8-pin µMAX® package. The MAX1138/MAX1139 are available in a 16-pin QSOP package. The MAX1136–MAX1139 are guaranteed over the extended temperature range (-40°C to +85°C). For pin-compatible 12-bit parts, refer to the MAX1236–MAX1239 data sheet. For pin-compatible 8-bit parts, refer to the MAX1036–MAX1039 data sheet.ApplicationsBattery-Powered Test EquipmentHandheld Portable ApplicationsMedical InstrumentsReceive Signal Strength IndicatorsSolar-Powered Remote SystemsSystem Supervision