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VCA2619YT Datasheet(PDF) 3 Page - Texas Instruments |
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VCA2619YT Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 19 page  VCA2619 SBOS276A − AUGUST 2003 − REVISED AUGUST 2003 www.ti.com 3 ELECTRICAL CHARACTERISTICS At TA = +25°C, VDD = 5V, load resistance = 500Ω on each output to ground single−ended output (1Vpp), MGS = 111, VCACNTL = 2.9V and fIN = 5MHz, unless otherwise noted. VCA2619 PARAMETER CONDITIONS MIN TYP MAX UNIT BUFFER Input Resistance 600 k Ω Input Capacitance 5 pF Input Bias Current 1 nA Maximum Input Voltage 1 Vpp Input Voltage Noise PGA Gain = 45dB, RS = 50Ω 5.9 nV/ √Hz Input Current Noise Independent of Gain 350 fA/ √Hz Noise Figure RF = 550Ω, PGA Gain = 45dB, RS = 75Ω 13 dB Bandwidth 100 MHz PROGRAMMABLE VARIABLE GAIN AMPLIFIER Peak Input Voltage 1 Vpp −3dB Bandwidth 20 MHz Slew Rate 300 V/ µs Output Signal Range RL ≥ 500Ω Each Side to Ground 2.5 ±1 V Output Impedance 1 Ω Output Short−Circuit Current ±40 mA 3rd-Harmonic Distortion VOUT = 1Vpp, VCACNTL = 2.9V −45 −60 dBc 2nd-Harmonic Distortion VOUT = 1Vpp, VCACNTL = 2.9V −42 −50 dBc 2nd-Harmonic Distortion Differential, VOUT = 2Vpp, VCACNTL = 3.0V, MGS = 011 −50 dBc Overload Performance (2nd-Harmonic Distortion) Input Signal = 0.5Vpp, VCACNTL = 2V −40 to −45 dB Time Delay 5 ns IMD, 2−Tone VOUT = 2Vpp, f = 9.95MHz −59 dBc Crosstalk 2Vpp Differential −60 dB ACCURACY Gain Slope VCACNTL = 0.4V to 2.9V 20 dB/V Gain Error(1) Output Offset Voltage Gain Range VCACNTL = 0.2V to 3.0V VCACNTL = 0.4V to 2.9V VCACNTL = 0.2V to 3.0V VCACNTL = 0.4V to 2.9V 48 ±2.75 ±1.50 ±50 52 50 ±2.0 dB dB mV dB dB GAIN CONTROL INTERFACE Input Voltage (VCACNTL) Range 0 to 3.0 V Input Resistance Response Time 1 M Ω Input Resistance Response Time 45dB Gain Change 0.2 µs POWER SUPPLY Specified Operating Range 4.75 5.0 5.25 V Power Dissipation 240 300 mW Power−Down 9.2 mW (1) Referenced to best fit dB−linear curve. |
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