Datasheet AD605 (Analog Devices) - 3

FabricanteAnalog Devices
DescripciónDual, Low Noise, Single-Supply Variable Gain Amplifier
Páginas / Página24 / 3 — AD605. SPECIFICATIONS. Table 1. AD605A. AD605B. Parameter. Conditions. …
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AD605. SPECIFICATIONS. Table 1. AD605A. AD605B. Parameter. Conditions. Min Typ. Max Min Typ. Max Unit

AD605 SPECIFICATIONS Table 1 AD605A AD605B Parameter Conditions Min Typ Max Min Typ Max Unit

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AD605 SPECIFICATIONS
Each channel @ TA = 25°C, VS = 5 V, RS = 50 Ω, RL = 500 Ω, CL = 5 pF, VREF = 2.5 V (scaling = 20 dB/V), −14 dB to +34 dB gain range, unless otherwise noted.
Table 1. AD605A AD605B Parameter Conditions Min Typ Max Min Typ Max Unit
INPUT CHARACTERISTICS Input Resistance 175 ± 40 175 ± 40 Ω Input Capacitance 3.0 3.0 pF Peak Input Voltage At minimum gain 2.5 ± 2.5 2.5 ± 2.5 V Input Voltage Noise VGN = 2.9 V 1.8 1.8 nV/√Hz Input Current Noise VGN = 2.9 V 2.7 2.7 pA/√Hz Noise Figure RS = 50 Ω, f = 10 MHz, VGN = 2.9 V 8.4 8.4 dB RS = 200 Ω, f = 10 MHz, VGN = 2.9 V 12 12 dB Common-Mode Rejection Ratio f = 1 MHz, VGN = 2.65 V −20 −20 dB OUTPUT CHARACTERISTICS −3 dB Bandwidth Constant with gain 40 40 MHz Slew Rate VGN = 1.5 V, output = 1 V step 170 170 V/μs Output Signal Range RL ≥ 500 Ω 2.5 ± 1.5 2.5 ± 1.5 V Output Impedance f = 10 MHz 2 2 Ω Output Short-Circuit Current ±40 ±40 mA Harmonic Distortion VGN = 1 V, VOUT = 1 V p-p HD2 f = 1 MHz −64 −64 dBc HD3 f = 1 MHz −68 −68 dBc HD2 f = 10 MHz −51 −51 dBc HD3 f = 10 MHz −53 −53 dBc Two-Tone Intermodulation RS = 0 Ω, VGN = 2.9 V, VOUT = 1 V p-p Distortion (IMD) f = 1 MHz −72 −72 dBc f = 10 MHz −60 −60 dBc 1 dB Compression Point f = 10 MHz, VGN = 2.9 V, output referred 15 15 dBm Third-Order Intercept f = 10 MHz, VGN = 2.9 V, −1 −1 dBm VOUT = 1 V p-p, input referred Channel-to-Channel Crosstalk Ch1: VGN = 2.65 V, inputs shorted, −70 −70 dB Ch2: VGN = 1.5 V (mid gain), f = 1 MHz, VOUT = 1 V p-p Group Delay Variation 1 MHz < f < 10 MHz, full gain range ±2.0 ±2.0 ns VOCM Input Resistance 45 45 kΩ ACCURACY Absolute Gain Error −14 dB to −11 dB 0.25 V < VGN < 0.40 V −1.2 +1.0 +3.0 –1.2 +0.75 +3.0 dB −11 dB to +29 dB 0.40 V < VGN < 2.40 V −1.0 ±0.3 +1.0 –1.0 ±0.2 +1.0 dB +29 dB to +34 dB 2.40 V < VGN < 2.65 V −3.5 −1.25 +1.2 –3.5 −1.25 +1.2 dB Gain Scaling Error 0.4 V < VGN < 2.4 V ±0.25 ±0.25 dB/V Output Offset Voltage VREF = 2.500 V, VOCM = 2.500 V −30 ±20 +30 –30 ±20 +30 mV Output Offset Variation VREF = 2.500 V, VOCM = 2.500 V 30 57 30 50 mV Rev. F | Page 3 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS (PER CHANNEL) THEORY OF OPERATION DIFFERENTIAL LADDER (ATTENUATOR) AC COUPLING GAIN CONTROL INTERFACE FIXED GAIN AMPLIFIER AND INTERPOLATOR CIRCUITS—APPLYING AN ACTIVE FEEDBACK AMPLIFIER APPLICATIONS INFORMATION CONNECTING TWO AMPLIFIERS TO DOUBLE THE GAIN RANGE EVALUATION BOARD INPUT CONNECTIONS ADJUSTING GAIN, COMMON-MODE, AND REFERENCE LEVELS OUTPUT CONNECTIONS OUTLINE DIMENSIONS ORDERING GUIDE