The AD8432 is a dual-channel, low power, ultralow noiseamplifier with selectable gain and active impedance matching.Each channel has a single-ended input, differential output, andintegrated input clamps. By pin strapping the gain setting pins, four accurate gains of G = 12.04 dB, 18.06 dB, 21.58 dB, and 24.08 dB (?4, ?8, ?12, and ?16, respectively) are possible. A bandwidth of200 MHz at G = 12.04 dB makes this amplifier well suited for many high speed applications.The exceptional noise performance of the AD8432 is madepossible by the active impedance matching. Using a feedback network, the input impedance of the amplifiers can be adjusted to match the signal source impedance without compromising the noise performance. Impedance matching and low noise in the AD8432 allow designers to create wider dynamic rangesystems that are able to detect even very low level signals. The AD8432 achieves 0.85 nV/?Hz input-referred voltage noise fora gain of 12.04 dB. The AD8432?s ultralow noise, low distortion, gain accuracy, and channel-to-channel matching are ideal for high performance ultrasound systems and for processing I/Qdemodulator signals.The AD8432 operates on a single supply of 5 V at 24 mA. It isavailable in a 4 mm ? 4 mm, 24-lead LFSCP. The LFCSP featuresan exposed paddle that provides a low thermal resistance path to the PCB, which enables more efficient heat transfer and increasesreliability. The operating temperature range is ?40?C to +85?C.Applications CW Doppler ultrasound front ends? Low noise preamplification? Predriver for I/Q demodulators and phase shifters? Wideband analog-to-digital drivers

The AD8476 is a very low power, fully differential precision amplifier with integrated gain resistors for unity gain. It is an ideal choice for driving low power, high performance ADCs as a single-ended-to-differential or differential-to-differential amplifier. It provides a precision gain of 1, common-mode level shifting, low temperature drift, and rail-to-rail outputs for maximum dynamic range.The AD8476 also provides overvoltage protection from large industrial input voltages up to ?23 V while operating on a dual 5 V supply. Power dissipation on a single 5 V supply is only 1.5 mW.The AD8476 works well with SAR, ?-?, and pipeline converters. The high current output stage of the part allows it to drive the switched capacitor front-end circuits of many ADCs with minimal error.Unlike many differential drivers on the market, the AD8476 is a high precision amplifier. With 200 ?V maximum output offset, 39 nV/?Hz noise, and ?102 dB THD + N at 10 kHz, the AD8476 pairs well with low power, high accuracy converters.Considering its low power consumption and high precision, the slew-enhanced AD8476 has excellent speed, settling to 16-bit precision for 250 kSPS acquisition times.The AD8476 is available in a space-saving 8-lead MSOP package. It is fully specified over the ?40?C to +125?C temperature range. Applications ADC driver Differential instrumentation amplifier building block Single-ended-to-differential converter Battery powered instruments

The?AD8494/AD8495/AD8496/AD8497?are precision instrumentation amplifiers with thermocouple cold junction compensators on an integrated circuit. They produce a high level (5 mV/?C) output directly from a thermocouple signal by combining an ice point reference with a precalibrated amplifier. They can be used as standalone thermometers or as switched output setpoint controllers using either a fixed or remote setpoint control.The AD8494/AD8495/AD8496/AD8497 can be powered from a single-ended supply (less than 3 V) and can measure temperatures below 0?C by offsetting the reference input. To minimize self-heating, an unloaded AD849x typically operates with a total supply current of 180 ?A, but it is also capable of delivering in excess of ?5 mA to a load.The AD8494 and AD8496 are precalibrated by laser wafer trimming to match the characteristics of J type (iron-constantan) thermocouples; the AD8495 and AD8497 are laser trimmed to match the characteristics of K type (chromel-alumel) thermo-couples. See Table 1 on the data sheet for the optimized ambient temperature range of each part.The AD8494/AD8495/AD8496/AD8497 allow a wide variety of supply voltages. With a 5 V single supply, the 5 mV/?C output allows the devices to cover nearly 1000 degrees of a thermo-couple?s temperature range.The AD8494/AD8495/AD8496/AD8497 work with 3 V supplies, allowing them to interface directly to lower supply ADCs. They can also work with supplies as large as 36 V in industrial systems that require a wide common-mode input range.Product Highlights Complete, precision laser wafer trimmed thermocouple signal conditioning system in a single IC package. Flexible pinout provides for operation as a setpoint controller or as a standalone Celsius thermometer. Rugged inputs withstand 4 kV ESD and provide over-voltage protection (OVP) up to VS ? 25 V. Differential inputs reject common-mode noise on the thermocouple leads. Reference pin voltage can be offset to measure 0?C on single supplies. Available in a small, 8-lead MSOP that is fully RoHS compliant. Applications J type thermocouple temperature measurement Setpoint controller Celsius thermometer Universal cold junction compensator White goods (oven, stove top) temperature measurements Exhaust gas temperature sensing Catalytic converter temperature sensing div#landing_page_sec ul { padding:0 0 15px 10px; margin:0px; } div#landing_page_sec li { padding:3px 0 2px 20px; margin:0px; list-style:none; background:url(/static/imported-files/embedded_html/images/li_img.gif) no-repeat 7px 9px; display:block; color:#000000; font-family: Arial, Helvetica, sans-serif; }

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