BOARD EVAL FOR AD5665 LFCSP

The AD7732 is a high precision, high throughput analog front end. True 16-bit peak-to-peak resolution is achievable with total conversion times of 500 ?s (2 kHz channel switching) making it ideally suitable for high resolution multiplexing applications.The part can be configured via a simple digital interface, which allows users to balance the noise performance against data throughput up to a 15.4 kHz.The analog front end features two fully differential input channels with unipolar or true bipolar input ranges to ?10 V while operating from a single +5 V analog supply. The part has an overrange and underrange detection capability and accepts an analog input overvoltage to ?16.5 V without degrading the performance of the adjacent channels.The differential reference input features ?No-Reference? detect capability. The ADC also supports per channel system calibration options. The digital serial interface can be configured for 3-wire operation and is compatible with microcontrollers and digital signal processors. All interface inputs are Schmitt triggered. The part is specified for operation over the extended industrial temperature range of ?40?C to +105?C and is available in 28-lead TSSOP package.Other parts in the AD7732 family are the AD7734?and the AD7738.The AD7734 is similar to AD7732, but its analog front end features four single-ended input channels.The AD7738 analog front end is configurable for four fully differential or eight single-ended input channels, features 0.625 V to 2.5 V bipolar/unipolar input ranges, and accepts a common-mode input voltage from 200 mV to AVDD ? 300 mV. The AD7738 multiplexer output is pinned out externally, allowing the user to implement programmable gain or signal conditioning before being applied to the ADC.APPLICATIONS PLCs/DCS Multiplexing applications Process control Industrial instrumentation

The ADCMP606 and ADCMP607 are very fast comparatorsfabricated on XFCB2, an Analog Devices, Inc., proprietaryprocess. These comparators are exceptionally versatile and easyto use. Features include an input range from VEE ? 0.5 V toVCCI + 0.2 V, low noise, CML-compatible output drivers, andTTL-/CMOS-compatible latch inputs with adjustable hysteresisand/or shutdown inputs.The devices offer 1.25 ns propagation delay with 2.5 ps rmsrandom jitter (RJ). Overdrive and slew rate dispersion aretypically less than 50 ps.A flexible power supply scheme allows the devices to operatewith a single +2.5 V positive supply and a ?0.5 V to +2.7 Vinput signal range up to a +5.5 V positive supply with a ?0.5 Vto +5.7 V input signal range. The ADCMP607 features splitinput/output supplies with no sequencing restrictions tosupport a wide input signal range with independent outputswing control and power savings.The CML-compatible output stage is fully back-matched forsuperior performance. The comparator input stage offers robustprotection against large input overdrive, and the outputs do notphase reverse when the valid input signal range is exceeded. Onthe ADCMP607, latch and programmable hysteresis features arealso provided with a unique single-pin control option.The ADCMP606 is available in a 6-lead SC70 package and theADCMP607 is available in a 12-lead LFCSP package.Applications High speed instrumentation Clock and data signal restoration Logic level shifting or translation Pulse spectroscopy High speed line receivers Threshold detection Peak and zero-crossing detectors High speed trigger circuitry Pulse-width modulators Current-/voltage-controlled oscillators Automatic test equipment (ATE)

The ADCMP606 and ADCMP607 are very fast comparatorsfabricated on XFCB2, an Analog Devices, Inc., proprietaryprocess. These comparators are exceptionally versatile and easyto use. Features include an input range from VEE ? 0.5 V toVCCI + 0.2 V, low noise, CML-compatible output drivers, andTTL-/CMOS-compatible latch inputs with adjustable hysteresisand/or shutdown inputs.The devices offer 1.25 ns propagation delay with 2.5 ps rmsrandom jitter (RJ). Overdrive and slew rate dispersion aretypically less than 50 ps.A flexible power supply scheme allows the devices to operatewith a single +2.5 V positive supply and a ?0.5 V to +2.7 Vinput signal range up to a +5.5 V positive supply with a ?0.5 Vto +5.7 V input signal range. The ADCMP607 features splitinput/output supplies with no sequencing restrictions tosupport a wide input signal range with independent outputswing control and power savings.The CML-compatible output stage is fully back-matched forsuperior performance. The comparator input stage offers robustprotection against large input overdrive, and the outputs do notphase reverse when the valid input signal range is exceeded. Onthe ADCMP607, latch and programmable hysteresis features arealso provided with a unique single-pin control option.The ADCMP606 is available in a 6-lead SC70 package and theADCMP607 is available in a 12-lead LFCSP package.Applications High speed instrumentation Clock and data signal restoration Logic level shifting or translation Pulse spectroscopy High speed line receivers Threshold detection Peak and zero-crossing detectors High speed trigger circuitry Pulse-width modulators Current-/voltage-controlled oscillators Automatic test equipment (ATE)

The AD7705 / AD7706?are complete analog front ends for low frequency measurement applications. These 2-/3-channel devices can accept low level input signals directly from a transducer and produce serial digital output. The devices employ a ?-? conversion technique to realize up to 16 bits of no missing codes performance. The selected input signal is applied to a proprietary, programmable-gain front end based around an analog modulator. The modulator output is processed by an on-chip digital filter. The first notch of this digital filter can be programmed via an on-chip control register, allowing adjustment of the filter cutoff and output update rate. The AD7705 / AD7706 devices operate from a single 2.7 V to 3.3 V or 4.75 V to 5.25 V supply. The AD7705 features two fully differential analog input channels; the AD7706 features three pseudo differential input channels. Both devices feature a differential reference input. Input signal ranges of 0 mV to 20 mV through 0 V to 2.5 V can be incorporated on both devices when operating with a VDD of 5 V and a reference of 2.5 V. They can also handle bipolar input signal ranges of ?20 mV through ?2.5 V, which are referenced to the AIN(?) inputs on the AD7705 and to the COMMON input on the AD7706.The AD7705 / AD7706 devices, with a 3 V supply and a 1.225 V reference, can handle unipolar input signal ranges of 0 mV to 10 mV through 0 V to 1.225 V. The devices can accept bipolar input ranges of ?10 mV through ?1.225 V. Therefore, the AD7705 / AD7706 devices perform all signal conditioning and conversion for a 2-channel or 3-channel system. The AD7705 / AD7706 are ideal for use in smart, microcontroller, or DSP-based systems. The devices feature a serial interface that can be configured for 3-wire operation. Gain settings, signal polarity, and update rate selection can be configured in software using the input serial port. The parts contains self-calibration and system calibration options to eliminate gain and offset errors on the part itself or in the system. CMOS construction ensures very low power dissipation, and the power-down mode reduces the standby power consumption to 20 ?W typ. These parts are available in a 16-lead, wide body (0.3 inch), plastic dual in-line package (DIP); a 16-lead, wide body (0.3 inch), standard small outline (SOIC) package; and a low profile, 16-lead, thin shrink small outline package (TSSOP).

The AD8319 is a demodulating logarithmic amplifier, capable of accurately converting an RF input signal to a corresponding decibel-scaled output. It employs the progressive compression technique over a cascaded amplifier chain, each stage of which is equipped with a detector cell. The device can be used in either measurement or controller modes. The AD8319 maintains accurate log conformance for signals of 1 MHz to 8 GHz and provides useful operation to 10 GHz. The input dynamic range is typically 40 dB (re: 50 ?) with error less than ?1 dB. The AD8319 has 8 ns/10 ns response time (fall time/rise time) that enables RF burst detection to a pulse rate of beyond 50 MHz. The device provides unprecedented logarithmic intercept stability vs. ambient temperature conditions. A supply of 3.0 V to 5.5 V is required to power the device. Current consumption is typically 22 mA, and it decreases to 200 ?A when the device is disabled.?The AD8319 can be configured to provide a control voltage to a power amplifier or a measurement output from the VOUT pin. Because the output can be used for controller applications, special attention was paid to minimize wideband noise. In this mode, the setpoint control voltage is applied to the VSET pin.The feedback loop through an RF amplifier is closed via VOUT, the output of which regulates the amplifier?s output to a magnitude corresponding to VSET. The AD8319 provides 0 V to (VPOS ? 0.1 V) output capability at the VOUT pin, suitable for controller applications. As a measurement device, VOUT is externally connected to VSET to produce an output voltage, VOUT, that is a decreasing linear-in-dB function of the RF input signal amplitude.The logarithmic slope is ?22 mV/dB, determined by the VSET interface. The intercept is 15 dBm (re: 50 ?, CW input) using the INHI input. These parameters are very stable against supply and temperature variations.The AD8319 is fabricated on a SiGe bipolar IC process and is available in a 2 mm ? 3 mm, 8-lead LFCSP_VD for an operating temperature range of ?40?C to +85?C.ApplicationsRF transmitter PA setpoint controls and level monitoring Power monitoring in radiolink transmitters RSSI measurement in base stations, WLANs, WiMAX, and radars

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