C o n t e n t s
Robust, Low Power Amplifier Features Input Overvoltage Protection >>
Voltage Feedback Amplifier Is Ideal for 16-Bit to 18-Bit Precision Instrumentation >>
Rail-to-Rail Triple Amplifiers for Cost Efficient, Lossless UXGA >>
Compact Video Filter and Buffer Supports HD and SD Signals Simultaneously >>
Differential ADC Drivers for 14-Bit and 16-Bit ADCs >>
Dual-Channel, Digitally Controlled Gain Trim Amplifiers for Broadband RF Designs >>
Single-Channel and Dual-Channel VGAs Provide 1 dB Resolution for Digital IF AGC Applications >>
High Voltage Operational Amplifier for Low Power Applications >>
Rail-to-Rail I/O Amplifier for Battery Powered Instrumentation >>
Gain-Programmable Instrumentation Amplifier Reduces Size and Cost of Precision Front Ends >>
Zero-Drift Instrumentation Amplifier Ideal for Max Channel Density in Space-Critical Designs >>
All prices in this bulletin are in USD in quantities greater than 1000 (unless otherwise noted), recommended lowest grade resale, FOB U.S.A.
High Performance, Low Power, Rail-to-Rail I/O Amplifier for Battery Powered Instrumentation
Limited headroom, battery voltage fluctuations, and variable inputs can make it difficult to achieve accurate measurements in portable systems such as glucose meters. ADI's ADA4505-2 offers high input linearity with zero-input crossover distortion (PSRR is 100 dB minimum, CMRR is 105 dB typical), simplifying the task considerably. Consuming only 10 µA per amplifier, the ADA4505-2 extends battery life and is virtually immune to battery dropout voltage. The high linearity response eliminates the main source of dc errors that cannot be software calibrated, improving system accuracy. The ADA4505-2 operates at 1.8 V to 5 V single supplies and is specified from –40°C to +125°C. It is ADA4505-2 available in 8-lead MSOP and LFCSP packages.
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Integrated, Gain-Programmable Instrumentation Amplifier Reduces Size and Cost of Precision Front Ends
The AD8295 integrates one precision instrumentational amplifier, two operational amplifiers, and two precision matched resistors on a single 4 mm × 4 mm LFCSP package. It offers designers the flexibility to choose filtering, differential output, or offset adjustment as needed. Filter requirements are simplified by maintaining a minimum CMRR of 80 dB @ 10 kHz (G = 1), enabling the AD8295 to reject wideband interference and line harmonics. The AD8295 is specified over the entire industrial temperature range of –40°C to +85°C and operates on a wide supply range of ±2.3 V to ±18 V. It is available in a 16-lead LFCSP package.
- Gain = 1 to 1000, gain set with one resistor
- Input bias current: 1 nA max
- 8 nV/√Hz RTI noise @ 1 kHz
- CMRR: 80 dB (G = 1), 120 dB (G = 100)
- Supply current: 2 mA max
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