AD8137 Datasheet | Analog Devices

FEATURES Fully differential Extremely low power with power-down feature 2.6 m A quiescent supply current @ 5 V 450 µA in power-down mode @ 5 V High speed 110 MHz large signal 3 d B bandwidth @ G = 1 450 V/µs slew rate 12-bit SFDR performance @ 500 k Hz Fast settling time: 100 ns to 0.02% Low input offset voltage: ±2.6 m V max Low input offset current: 0.45 µA max Differential input and output Differential-to-differential or single-ended-to-differential operation Rail-to-rail output Adjustable output mon-mode voltage Externally adjustable gain Wide supply voltage range: 2.7 V to 12 V Available in small SOIC package Qualified for automotive applications APPLICATIONS ADC drivers Automotive vision and safety systems Automotive infotainment systems Portable instrumentation Battery-powered applications Single-ended-to-differential converters Differential active filters Video amplifiers Level shifters GENERAL DESCRIPTON The AD8137 is a low cost differential driver with a rail-to-rail output that is ideal for driving ADCs in systems that are sensitive to power and cost. The AD8137 is easy to apply, and its internal mon-mode feedback architecture allows its output monmode voltage to be controlled by the voltage applied to one pin. The internal feedback loop also provides inherently balanced outputs as well as suppression of even-order harmonic distortion products. Fully differential and single-ended-to-differential gain configurations are easily realized by the AD8137. External feedback networks consisting of four resistors determine the Low Cost, Low Power, Differential ADC Driver FUNCTIONAL BLOCK DIAGRAM - IN 1 VOCM 2 VS+ 3 +OUT 4 8 +IN 7 PD 6 VS- 5 - OUT 04771-0-001 Figure 1. 3 2 G=1 1 0 - 1 G = 2 G=5 - 2 - 3 - 4 - 5 - 6 G = 10 - 7 - 8 - 9 - 10 RG = 1kΩ - 11 VO, dm = 0.1V p-p - 12 0.1 1 10 FREQUENCY (MHz) Figure 2. Small Signal Response for Various Gains 04771-0-002 NORMALIZED CLOSED-LOOP GAIN (d B) closed-loop gain of the amplifier. The...