ADA4950-2YCPZ-R7

ADA4950-2 is a dual channel, low power, selectable gain differential ADC driver. It is an ideal choice for driving high performance ADCs as single ended-to-differential or differential-to-differential amplifiers. The output common-mode voltage is user adjustable by means of an internal common-mode feedback loop, allowing the device output to match the input of the ADC. The internal feedback loop also provides exceptional output balance as well as suppression of even-order harmonic distortion products. Differential gain configurations of 1, 2, and 3 are easily realized with internal feedback networks that are connected externally to set the closed-loop gain of the amplifier. It is used in applications such as ADC drivers, single-ended-to-differential converters, IF and baseband gain blocks, differential buffers, line drivers.

• Wide supply voltage range from +3V to ±5V
• Adjustable output common-mode voltage, input common-mode range shifted down by 1 VBE
• Offset voltage is ±0.2mV typical at (V+DIN = V−DIN = VOCM = 0V)
• Input voltage noise is 9.8nV/√Hz typical at (TA = 25°C, +VS = 5V)
• Second harmonic is -108dBc typical at (1MHz, TA = 25°C, +VS = 5V)
• Overdrive recovery time is 20ns typical at (VIN = 0V to 5V ramp, G = 2)
• Slew rate is 2900V/µs typical at (VOUT, dm = 2V p-p, 25% to 75%)
• 750MHz typical -3dB small signal bandwidth at (VOUT, dm = 0.1V p-p)
• Quiescent current per amplifier is 9.5mA typical at (TA = 25°C, +VS = 5V)
• Operating temperature is -40°C to +105°C, package style is 24-lead LFCSP_WQ

Uwagi

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