The ADA4941-1 is a low power, low noise differential driver foranalog-to-digital converters (ADCs) up to 18 bits in systemsthat are sensitive to power. The ADA4941-1 is configured in aneasy-to-use, single-ended-to-differential configuration andrequires no external components for a gain of 2 configuration.A resistive feedback network can be added to achieve gains greaterthan 2. The ADA4941-1 provides essential benefits, such as lowdistortion and high SNR that are required for driving highresolution ADCs.With a wide input voltage range (0 V to 3.9 V on a single 5 Vsupply), rail-to-rail output, high input impedance, and a user-adjustablegain, the ADA4941-1 is designed to drive single-supplyADCs with differential inputs found in a variety of low powerapplications, including battery-operated devices and singlesupplydata acquisition systems.The ADA4941-1 is ideal for driving the 16-bit and 18-bitPulSAR? ADCs, such as the AD7687, AD7690, and AD7691.The ADA4941-1 is manufactured on Analog Devices, Inc.,proprietary, second-generation, eXtra fast complementarybipolar (XFCB) process, which enables the amplifier to achieve18-bit performance on low supply currents.The ADA4941-1 is available in a small 8-lead LFCSP as well as astandard 8-lead SOIC and is rated to work over the extendedindustrial temperature range, ?40?C to +125?C. Applications Single-supply data acquisition systems Instrumentation Process control Battery-power systems Medical instrumentation

Power Management IC Development Tools Battery Backup System Manager

Demonstration circuit 2365A highlights the LTC2358 family of buffered input ADCs. The LTC2358/LTC2357/LTC2353/LTC2333 are low noise, high speed, 16-/18- bit successive approximation register (SAR) ADCs with integrated front end buffers. These ADCs accept a wide common mode range. Pico-amp inputs and high CMRR enable these ADCs to connect directly to a wide range of sensors without compromising measurement accuracy. The following text refers to the LTC2358-18 but applies to all parts in the family, the only differences being the number of bits, number of channels and the maximum sample rate. The LTC2358-18 has a flexible SoftSpan™ interface that allows conversion-by-conversion control of the input voltage span on a per-channel basis. An internal 2.048V reference and 2X buffer simplify basic operation while an external reference can be used to increase the input range and the SNR of the ADC.

Demonstration circuit 2365A highlights the LTC2358 family of buffered input ADCs. The LTC2358/LTC2357/LTC2353/LTC2333 are low noise, high speed, 16-/18-bit successive approximation register (SAR) ADCs with integrated front end buffers. These ADCs accept a wide common mode range. Pico-amp inputs and high CMRR enable these ADCs to connect directly to a wide range of sensors without compromising measurement accuracy. The demo manual refers to the LTC2358-18 but applies to all parts in the family, the only differences being the number of bits, number of channels and the maximum sample rate. The LTC2358-18 has a flexible SoftSpan™ interface that allows conversion-by-conversion control of the input voltage span on a per-channel basis. An internal 2.048V reference and 2X buffer simplify basic operation while an external reference can be used to increase the input range and the SNR of the ADC.

Demonstration circuit 2365A highlights the LTC2358 family of buffered input ADCs. The LTC2358/LTC2357/LTC2353/LTC2333 are low noise, high speed, 16-/18- bit successive approximation register (SAR) ADCs with integrated front end buffers. These ADCs accept a wide common mode range. Pico-amp inputs and high CMRR enable these ADCs to connect directly to a wide range of sensors without compromising measurement accuracy. The demo manual refers to the LTC2358-18 but applies to all parts in the family, the only differences being the number of bits, number of channels and the maximum sample rate. The LTC2358-18 has a flexible SoftSpan™ interface that allows conversion-by-conversion control of the input voltage span on a per-channel basis. An internal 2.048V reference and 2X buffer simplify basic operation while an external reference can be used to increase the input range and the SNR of the ADC.

Demonstration circuit 2374A is a multi-chemistry battery charger with optional maximum power point tracking (MPPT) featuring the LTC4013. The LTC4013 has configurable 3 stage and 4 stage lead acid and Li-Ion battery algorithms in addition to 2 stage CC/CV charge cycles. The DC2374A is set up to operate from a 21.5V to 35V supply or from a solar panel and charges a six cell lead acid battery at 5A. It also can be configured to operate down to 5V. There are optional input and output capacitors plus large inductor pads and parallel top and bottom FET pads to allow high power charging. The operating frequency, charge voltage, low battery (LB) voltage setting and timing are configurable with external resistors and a capacitor. The different charging algorithms are jumper-selectable, set by two tri-state mode pins and the TIMER pin.

Demonstration Circuit 2375A is a dual output 350mA step down charge pump with a post-regulator LDO and watchdog timer featuring the LTC3256EMSE. The LTC3256 operates with a wide input voltage range from 5.5V to 38V and is engineered for diagnostic coverage in ISO262262 systems. The LTC3256 can provide up to 350mA of output current from a 12V battery with 2W less power dissipation than 2 ideal linear regulators. The DC2375A was populated with automotive grade components for evaluation. Because of the wide input operating range it is possible to exceed the specified operating junction temperature and even reach thermal shutdown with heavy loads. Please refer to the data sheet for additional information on the thermal limitations of the device.

The LTC2664 is a family of four-channel, 16-/12-bit ?10V digital-to-analog converters with integrated precision references. They are guaranteed monotonic and have built-in rail-to-rail output buffers. These SoftSpan? DACs offer five output ranges up to ?10V. The range of each channel is independently programmable, or the part can be hardware-configured for operation in a fixed range.The integrated 2.5V reference is buffered separately to each channel; an external reference can be used for additional range options. The LTC2664 also includes A/B toggle capability via a dedicated pin or software toggle command.The SPI/Microwire-compatible 3-wire serial interface operates on logic levels as low as 1.71V at clock rates up to 50MHz.Applications Optical Networking Instrumentation Data Acquisition Automatic Test Equipment Process Control and Industrial Automation

The LTC2325-16 is a low noise, high speed quad 16?bit successive approximation register (SAR) ADC with differential inputs and wide input common mode range. Operating from a single 3.3V or 5V supply, the LTC2325-16 has an 8VP-P differential input range, making it ideal for applications which require a wide dynamic range with high common mode rejection. The LTC2325-16 achieves ?2LSB INL typical, no missing codes at 16 bits and 82dB SNR.The LTC2325-16 has an onboard low drift (20ppm/?C max) 2.048V or 4.096V temperature-compensated reference. The LTC2325-16 also has a high speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 5Msps per channel throughput with one cycle latency makes the LTC2325-16 ideally suited for a wide variety of high speed applications. The LTC2325-16 dissipates only 40mW per channel and offers nap and sleep modes to reduce the power consumption to 90?W for further power savings during inactive periods.Applications High Speed Data Acquisition Systems Communications Optical Networking Multiphase Motor Control

The LTC2324-12 is a low noise, high speed quad 12-bit + sign successive approximation register (SAR) ADC with differential inputs and wide input common mode range. Operating from a single 3.3V or 5V supply, the LTC2324- 12 has an 8VP-P differential input range, making it ideal for applications which require a wide dynamic range with high common mode rejection. The LTC2324-12 achieves ?0.5LSB INL typical, no missing codes at 12 bits and 78dB SNR.The LTC2324-12 has an onboard low drift (20ppm/?C max) 2.048V or 4.096V temperature-compensated reference. The LTC2324-12 also has a high speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 2Msps per channel throughput with no latency makes the LTC2324-12 ideally suited for a wide variety of high speed applications. The LTC2324-12 dissipates only 40mW per channel and offers nap and sleep modes to reduce the power consumption to 26?W for further power savings during inactive periods.Applications High Speed Data Acquisition Systems Communications Optical Networking Multiphase Motor Control