Datasheet AD604 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Dual, Ultralow Noise Variable Gain Amplifier |
| Pages / Page | 32 / 3 — AD604. SPECIFICATIONS. Table 1. Parameter. Conditions. Min. Typ. Max. Unit |
| Revision | G |
| File Format / Size | PDF / 741 Kb |
| Document Language | English |
AD604. SPECIFICATIONS. Table 1. Parameter. Conditions. Min. Typ. Max. Unit
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AD604 SPECIFICATIONS
Each amplifier channel at TA = 25°C, VS = ±5 V, RS = 50 Ω, RL = 500 Ω, CL = 5 pF, VREF = 2.50 V (scaling = 20 dB/V), 0 dB to 48 dB gain range (preamplifier gain = 14 dB), VOCM = 2.5 V, C1 and C2 = 0.1 μF (see Figure 37), unless otherwise noted.
Table 1. Parameter Conditions Min Typ Max Unit
INPUT CHARACTERISTICS Preamplifier Input Resistance 300 kΩ Input Capacitance 8.5 pF Input Bias Current −27 mA Peak Input Voltage Preamplifier gain = 14 dB ±400 mV Preamplifier gain = 20 dB ±200 mV Input Voltage Noise VGN = 2.9 V, RS = 0 Ω Preamplifier gain = 14 dB 0.8 nV/√Hz Preamplifier gain = 20 dB 0.73 nV/√Hz Input Current Noise Independent of gain 3.0 pA/√Hz Noise Figure RS = 50 Ω, f = 10 MHz, VGN = 2.9 V 2.3 dB RS = 200 Ω, f = 10 MHz, VGN = 2.9 V 1.1 dB DSX Input Resistance 175 Ω Input Capacitance 3.0 pF Peak Input Voltage 2.5 ± 2 V Input Voltage Noise VGN = 2.9 V 1.8 nV/√Hz Input Current Noise VGN = 2.9 V 2.7 pA/√Hz Noise Figure RS = 50 Ω, f = 10 MHz, VGN = 2.9 V 8.4 dB RS = 200 Ω, f = 10 MHz, VGN = 2.9 V 12 dB Common-Mode Rejection Ratio f = 1 MHz, VGN = 2.65 V −20 dB OUTPUT CHARACTERISTICS −3 dB Bandwidth Constant with gain 40 MHz Slew Rate VGN = 1.5 V, output = 1 V step 170 V/μs Output Signal Range RL ≥ 500 Ω 2.5 ± 1.5 V Output Impedance f = 10 MHz 2 Ω Output Short-Circuit Current ±40 mA Harmonic Distortion VGN = 1 V, VOUT = 1 V p-p HD2 f = 1 MHz −54 dBc HD3 f = 1 MHz −67 dBc HD2 f = 10 MHz −43 dBc HD3 f = 10 MHz −48 dBc Two-Tone Intermodulation Distortion (IMD) VGN = 2.9 V, VOUT = 1 V p-p f = 1 MHz −74 dBc f = 10 MHz −71 dBc Third-Order Intercept f = 10 MHz, VGN = 2.65 V, VOUT = 1 V p-p, −12.5 dBm input referred 1 dB Compression Point f = 1 MHz, VGN = 2.9 V, output referred 15 dBm Channel-to-Channel Crosstalk VOUT = 1 V p-p, f = 1 MHz, −30 dB Channel 1: VGN = 2.65 V, inputs shorted, Channel 2: VGN = 1.5 V (mid gain) Group Delay Variation 1 MHz < f < 10 MHz, full gain range ±2 ns VOCM Input Resistance 45 kΩ Rev. G | Page 3 of 32 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PREAMPLIFIER DIFFERENTIAL LADDER (ATTENUATOR) AC COUPLING GAIN CONTROL INTERFACE ACTIVE FEEDBACK AMPLIFIER (FIXED-GAIN AMP) APPLICATIONS INFORMATION ULTRALOW NOISE AGC AMPLIFIER WITH 82 dB TO 96 dB GAIN RANGE ULTRALOW NOISE, DIFFERENTIAL INPUT-DIFFERENTIAL OUTPUT VGA MEDICAL ULTRASOUND TGC DRIVING THE AD9050, A 10-BIT, 40 MSPS ADC EVALUATION BOARD CONNECTING A WAVEFORM TO THE AD604-EVALZ DSX INPUT CONNECTIONS Cascade VGAs to Boost Gain PREAMPLIFIER GAIN OUTPUTS DC OPERATING CONDITIONS EVALUATION BOARD ARTWORK AND SCHEMATIC OUTLINE DIMENSIONS ORDERING GUIDE
AD604 SPECIFICATIONS
Each amplifier channel at TA = 25°C, VS = ±5 V, RS = 50 Ω, RL = 500 Ω, CL = 5 pF, VREF = 2.50 V (scaling = 20 dB/V), 0 dB to 48 dB gain range (preamplifier gain = 14 dB), VOCM = 2.5 V, C1 and C2 = 0.1 μF (see Figure 37), unless otherwise noted.
Table 1. Parameter Conditions Min Typ Max Unit
INPUT CHARACTERISTICS Preamplifier Input Resistance 300 kΩ Input Capacitance 8.5 pF Input Bias Current −27 mA Peak Input Voltage Preamplifier gain = 14 dB ±400 mV Preamplifier gain = 20 dB ±200 mV Input Voltage Noise VGN = 2.9 V, RS = 0 Ω Preamplifier gain = 14 dB 0.8 nV/√Hz Preamplifier gain = 20 dB 0.73 nV/√Hz Input Current Noise Independent of gain 3.0 pA/√Hz Noise Figure RS = 50 Ω, f = 10 MHz, VGN = 2.9 V 2.3 dB RS = 200 Ω, f = 10 MHz, VGN = 2.9 V 1.1 dB DSX Input Resistance 175 Ω Input Capacitance 3.0 pF Peak Input Voltage 2.5 ± 2 V Input Voltage Noise VGN = 2.9 V 1.8 nV/√Hz Input Current Noise VGN = 2.9 V 2.7 pA/√Hz Noise Figure RS = 50 Ω, f = 10 MHz, VGN = 2.9 V 8.4 dB RS = 200 Ω, f = 10 MHz, VGN = 2.9 V 12 dB Common-Mode Rejection Ratio f = 1 MHz, VGN = 2.65 V −20 dB OUTPUT CHARACTERISTICS −3 dB Bandwidth Constant with gain 40 MHz Slew Rate VGN = 1.5 V, output = 1 V step 170 V/μs Output Signal Range RL ≥ 500 Ω 2.5 ± 1.5 V Output Impedance f = 10 MHz 2 Ω Output Short-Circuit Current ±40 mA Harmonic Distortion VGN = 1 V, VOUT = 1 V p-p HD2 f = 1 MHz −54 dBc HD3 f = 1 MHz −67 dBc HD2 f = 10 MHz −43 dBc HD3 f = 10 MHz −48 dBc Two-Tone Intermodulation Distortion (IMD) VGN = 2.9 V, VOUT = 1 V p-p f = 1 MHz −74 dBc f = 10 MHz −71 dBc Third-Order Intercept f = 10 MHz, VGN = 2.65 V, VOUT = 1 V p-p, −12.5 dBm input referred 1 dB Compression Point f = 1 MHz, VGN = 2.9 V, output referred 15 dBm Channel-to-Channel Crosstalk VOUT = 1 V p-p, f = 1 MHz, −30 dB Channel 1: VGN = 2.65 V, inputs shorted, Channel 2: VGN = 1.5 V (mid gain) Group Delay Variation 1 MHz < f < 10 MHz, full gain range ±2 ns VOCM Input Resistance 45 kΩ Rev. G | Page 3 of 32 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PREAMPLIFIER DIFFERENTIAL LADDER (ATTENUATOR) AC COUPLING GAIN CONTROL INTERFACE ACTIVE FEEDBACK AMPLIFIER (FIXED-GAIN AMP) APPLICATIONS INFORMATION ULTRALOW NOISE AGC AMPLIFIER WITH 82 dB TO 96 dB GAIN RANGE ULTRALOW NOISE, DIFFERENTIAL INPUT-DIFFERENTIAL OUTPUT VGA MEDICAL ULTRASOUND TGC DRIVING THE AD9050, A 10-BIT, 40 MSPS ADC EVALUATION BOARD CONNECTING A WAVEFORM TO THE AD604-EVALZ DSX INPUT CONNECTIONS Cascade VGAs to Boost Gain PREAMPLIFIER GAIN OUTPUTS DC OPERATING CONDITIONS EVALUATION BOARD ARTWORK AND SCHEMATIC OUTLINE DIMENSIONS ORDERING GUIDE
