ADC32J24 Evaluation Module

AFE5805 evaluation module

The AD7124-8 is a low power, low noise, completely integratedanalog front end for high precision measurement applications.The device contains a low noise, 24-bit ?-? analog-to-digitalconverter (ADC), and can be configured to have 8 differentialinputs or 15 single-ended or pseudo differential inputs. The onchiplow gain stage ensures that signals of small amplitude canbe interfaced directly to the ADC.One of the major advantages of the AD7124-8 is that it gives theuser the flexibility to employ one of three integrated powermodes. The current consumption, range of output data rates,and rms noise can be tailored with the power mode selected.The device also offers a multitude of filter options, ensuring thatthe user has the highest degree of flexibility.The AD7124-8 can achieve simultaneous 50 Hz and 60 Hzrejection when operating at an output data rate of 25 SPS (singlecycle settling), with rejection in excess of 80 dB achieved at loweroutput data rates.The AD7124-8 establishes the highest degree of signal chainintegration. The device contains a precision, low noise, lowdrift internal band gap reference and accepts an externaldifferential reference, which can be internally buffered. Otherkey integrated features include programmable low drift excitationcurrent sources, burnout currents, and a bias voltage generator,which sets the common-mode voltage of a channel to AVDD/2.The low-side power switch enables the user to power downbridge sensors between conversions, ensuring the absoluteminimal power consumption of the system. The device alsoallows the user the option of operating with either an internalclock or an external clock.The integrated channel sequencer allows several channels to beenabled simultaneously, and the AD7124-8 sequentially convertson each enabled channel, simplifying communication with thedevice. As many as 16 channels can be enabled at any time, achannel being defined as an analog input or a diagnostic suchas a power supply check or a reference check. This uniquefeature allows diagnostics to be interleaved with conversions.The AD7124-8 also supports per channel configuration. Thedevice allows eight configurations or setups. Each configurationconsists of gain, filter type, output data rate, buffering, andreference source. The user can assign any of these setups on achannel by channel basis.The AD7124-8 also has extensive diagnostic functionalityintegrated as part of its comprehensive feature set. Thesediagnostics include a cyclic redundancy check (CRC), signalchain checks, and serial interface checks, which lead to a morerobust solution. These diagnostics reduce the need for externalcomponents to implement diagnostics, resulting in reducedboard space needs, reduced design cycle times, and cost savings.The failure modes effects and diagnostic analysis (FMEDA) of atypical application has shown a safe failure fraction (SFF) greaterthan 90% according to IEC 61508.The device operates with a single analog power supply from 2.7 Vto 3.6 V or a dual 1.8 V power supply. The digital supply has arange of 1.65 V to 3.6 V. It is specified for a temperature rangeof ?40?C to +125?C. The AD7124-8 is housed in a 32-leadLFCSP package.Note that, throughout this data sheet, multifunction pins, suchas DOUT/RDY, are referred to either by the entire pin name orby a single function of the pin, for example, RDY, when onlythat function is relevant.Applications Temperature measurement Pressure measurement Industrial process control Instrumentation Smart transmitters

The AD7147 CapTouch? controller is designed for use with capacitance sensors implementing functions such as buttons, scroll bars, and wheels. The sensors need only one PCB layer, enabling ultrathin applications.The AD7147 is an integrated CDC with on-chip environmental calibration. The CDC has 13 inputs channeled through a switch matrix to a 16-bit, 250 kHz sigma-delta (?-?) converter. The CDC is capable of sensing changes in the capacitance of the external sensors and uses this information to register a sensor activation. By programming the registers, the user has full control over the CDC setup.High resolution sensors require minor software to run on the host processor.The AD7147 is designed for single electrode capacitance sensors (grounded sensors). There is an active shield output to minimize noise pickup in the sensor.The AD7147 has on-chip calibration logic to compensate for changes in the ambient environment. The calibration sequence is performed automatically and at continuous intervals as long as the sensors are not touched. This ensures that there are no false or non-registering touches on the external sensors due to a changing environment.The AD7147 has an SPI-compatible serial interface, and the AD7147-1 has an I2C?-compatible serial interface. Both parts have an interrupt output, as well as a GPIO. There is a VDRIVE pin to set the voltage level for the serial interface independent of VCC.The AD7147 is available in a 24-lead, 4 mm ? 4 mm LFCSP and operates from a 2.6 V to 3.6 V supply. The operating current consumption in low power mode is typically 26 ?A for 13 sensors.APPLICATIONS Cell phones Personal music and multimedia players Smart handheld devices Television, A/V, and remote controls Gaming consoles Digital still cameras?

The AD7147 CapTouch? controller is designed for use with capacitance sensors implementing functions such as buttons, scroll bars, and wheels. The sensors need only one PCB layer, enabling ultrathin applications.The AD7147 is an integrated CDC with on-chip environmental calibration. The CDC has 13 inputs channeled through a switch matrix to a 16-bit, 250 kHz sigma-delta (?-?) converter. The CDC is capable of sensing changes in the capacitance of the external sensors and uses this information to register a sensor activation. By programming the registers, the user has full control over the CDC setup.High resolution sensors require minor software to run on the host processor.The AD7147 is designed for single electrode capacitance sensors (grounded sensors). There is an active shield output to minimize noise pickup in the sensor.The AD7147 has on-chip calibration logic to compensate for changes in the ambient environment. The calibration sequence is performed automatically and at continuous intervals as long as the sensors are not touched. This ensures that there are no false or non-registering touches on the external sensors due to a changing environment.The AD7147 has an SPI-compatible serial interface, and the AD7147-1 has an I2C?-compatible serial interface. Both parts have an interrupt output, as well as a GPIO. There is a VDRIVE pin to set the voltage level for the serial interface independent of VCC.The AD7147 is available in a 24-lead, 4 mm ? 4 mm LFCSP and operates from a 2.6 V to 3.6 V supply. The operating current consumption in low power mode is typically 26 ?A for 13 sensors.APPLICATIONS Cell phones Personal music and multimedia players Smart handheld devices Television, A/V, and remote controls Gaming consoles Digital still cameras?

The AD7191 is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta (?-?) ADC. The on-chip low noise gain stage means that signals of small amplitude can be interfaced directly to the ADC. It contains two differential analog inputs. The part also includes a temperature sensor that can be used for temperature compensation.For ease-of-use, all the features of the AD7191 are controlled by dedicated pins. The on-chip PGA has a gain of 1, 8, 64, or 128, supporting a full-scale differential input of ?5 V, ?625 mV, ?78 mV, or ?39 mV. The output data rate can be programmed to 10 Hz, 50 Hz, 60 Hz, or 120 Hz. Simultaneous 50 Hz and 60 Hz rejection is obtained when the output data rate is set to 10 Hz or 50 Hz; 60 Hz only rejection is obtained when the output data rate is set to 60 Hz. The AD7191 can be operated with the internal clock, or an external clock can be used.The part operates with a power supply of 3 V to 5.25 V. It consumes a current of 4.35 mA. It is available in a 24-lead TSSOP package.ApplicationsWeigh scalesStrain gauge transducersPressure measurementMedical and scientific instrumentation

The AD7266 is a dual, 12-bit, high speed, low power, successive approximation ADC that operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 2 MSPS. The device contains two ADCs, each preceded by a 3-channel multiplexer, and a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 30 MHz.The conversion process and data acquisition use standard control inputs allowing easy interfacing to microprocessors or DSPs. The input signal is sampled on the falling edge of CS; conversion is also initiated at this point. The conversion time is determined by the SCLK frequency. There are no pipelined delays associated with the part.The AD7266 uses advanced design techniques to achieve very low power dissipation at high throughput rates. With 5 V supplies and a 2 MSPS throughput rate, the part consumes 6.2 mA maximum. The part also offers flexible power/throughput rate management when operating in normal mode as the quiescent current consumption is so low.The analog input range for the part can be selected to be a 0 V to VREF (or 2 ? VREF) range, with either straight binary or twos complement output coding. The AD7266 has an on-chip 2.5 V reference that can be overdriven when an external reference is preferred. This external reference range is 100 mV to VDD.PRODUCT HIGHLIGHTS Two Complete ADC Functions Allow Simultaneous Sampling and Conversion of Two Channels. Each ADC has three fully/pseudo differential pairs, or six single-ended channels, as programmed. The conversion result of both channels is simultaneously available on separate data lines, or in succession on one data line if only one serial port is available. High Throughput with Low Power Consumption. The AD7266 offers a 1.5 MSPS throughput rate with 11.4 mW maximum power dissipation when operating at 3 V. The AD7266 offers both a standard 0 V to VREF input range and a 2 ? V input range. No Pipeline Delay. The part features two standard successive approximation ADCs with accurate control of the sampling instant via a CS input and once off conversion control.

The AD7291 is a 12-bit, low power, 8-channel, successive approximation analog-to-digital converter (ADC) with an internal temperature sensor.The part operates from a single 3.3 V power supply and features an I2C-compatible interface. The part contains a 9-channel multiplexer and a track-and-hold amplifier than can handle frequencies up to 30 MHz. The device has an on-chip 2.5 V reference that can be disabled to allow the use of an external reference.The AD7291 provides a 2-wire serial interface compatible with I2C interfaces. The I2C interface supports standard and fast I2C interface modes. The AD7291 normally remains in a partial power-down state while not converting and powers up for conversions. The conversion process can be controlled by a command mode where conversions occur across I2C write operations or an autocycle mode selected through software control.The AD7291 includes a high accuracy band gap temperature sensor, which is monitored and digitized by the 12-bit ADC to give a resolution of 0.25?C.The AD7291 offers a programmable sequencer, which enables the selection of a preprogrammable sequence of channels for conversion.On-chip limit registers can be programmed with high and low limits for the conversion results; an out-of-range indicator output (ALERT) becomes active when the programmed high or low limits are violated by the conversion result. This output can be used as an interrupt. Product HighlightsIdeally suited to monitoring system variables in a variety of systems including telecommunications, process control, and industrial control.I2C-compatible serial interface. Standard and fast modes.Automatic partial power-down while not converting to maximize power efficiency.Channel sequencer operation.Integrated temperature sensor with 0.25?C resolution.Out of range indicator that can be software disabled or enabled.

The AD7293 is a PA drain current controller containing functionality for general-purpose monitoring and control of current, voltage, and temperature, integrated into a single chip solution with an SPI-compatible interface.The device features a 4-channel, 12-bit successive approximation register (SAR) ADC, eight 12-bit DACs (four bipolar and four unipolar with output ranges that can be configured to shut down under external pin control), a ?1.25?C accurate internal temperature sensor, and eight general-purpose input/output (GPIO) pins.The device also includes limit registers for alert functions and four high-side current sense amplifiers to measure current across external shunt resistors. These amplifiers can be optionally set to operate as part of four independent closed-loop drain current controllers.A high accuracy 2.5 V internal reference is provided to drive theDACs and the ADC. The 12-bit ADC monitors and digitizes theinternal temperature sensor, and two inputs are included for theexternal diode temperature sensors.Product Highlights Four independent closed-loop drain current controllers. Built-in monitoring, sequencing, and alert features. Compatible with both depletion mode and enhancement mode power amplifiers.Applications GaN and GaAs power amplifier monitoring and controls Base station power amplifiers General-purpose system monitoring and controls

The AD7329 is an 8-Channel, 12-Bit Plus Sign Successive Approximation ADC. The ADC has a high-speed serial interface that can operate at throughput rates up to 1 MSPS. The ADC has a high-speed serial interface that can operate at throughput rates up to 250 kSPS.The AD7329 can accept True Bipolar Analog input signals. The Ad7329 has four software selectable ranges, ?10 V, ?5 V, ?2.5 V and 0 to 10 V. Each analog input channel can be independently programmed to one of the input ranges by setting the appropriate bits in the Range Registers.The Analog Input Channels can be configured as single ended, fully differential or pseudo differential. Dedicated Control Register bits are used to configure the Analog inputs.The ADC contains a 2.5 V Internal reference. The AD7329 also allows for external Reference operation. If a 3 V external reference is applied to the REFIN/OUT pin, the ADC can handle a True Bipolar ? 12 V Analog input range. VDD and VSS supplies of ? 12 V are required for this ? 12 V input range.The AD7329 has multiplexer output pins and ADC input pins. These allow the user to insert buffers, differential amplifiers or antialiasing filters, if required, between the Multiplexer and the ADC. This means that for eight analog inputs only a single driver is required for the AD7329.The AD7329 has a number of power down mode to reduce power consumption at lower throughput rates.PRODUCT HIGHLIGHTS The AD7329 can accept True Bipolar Analog Input signals, ?10V, ?5V, ?2.5V and 0 to 10V unipolar signals. The Eight Analog Inputs can be configured as 8 Single-Ended inputs, 4 True Differential, 4 Pseudo Differential or 7 Pseudo Differential Inputs. SPI/QSPI/DSP/MICROWIRE compatible Interface. Low Power, TBD mW at maximum throughput rate. Channel Sequencer