Datasheet AD603 (Analog Devices) - 3

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Data Sheet AD603 SPECIFICATIONS
@ TA = 25°C, VS = ±5 V, –500 mV ≤ VG ≤ +500 mV, GNEG = 0 V, –10 dB to +30 dB gain range, RL = 500 Ω, and CL = 5 pF, unless otherwise noted.
Table 1. Parameter Conditions Min Typ Max Unit
INPUT CHARACTERISTICS Input Resistance Pin 3 to Pin 4 97 100 103 Ω Input Capacitance 2 pF Input Noise Spectral Density1 Input short-circuited 1.3 nV/√Hz Noise Figure f = 10 MHz, gain = maximum, R = 10 Ω 8.8 dB S 1 dB Compression Point f = 10 MHz, gain = maximum, R = 10 Ω −11 dBm S Peak Input Voltage ±1.4 ±2 V OUTPUT CHARACTERISTICS −3 dB Bandwidth V = 100 mV rms 90 MHz OUT Slew Rate R ≥ 500 Ω 275 V/µs L Peak Output2 R ≥ 500 Ω ±2.5 ±3.0 V L Output Impedance f ≤ 10 MHz 2 Ω Output Short-Circuit Current 50 mA Group Delay Change vs. Gain f = 3 MHz; full gain range ±2 ns Group Delay Change vs. Frequency V = 0 V; f = 1 MHz to 10 MHz ±2 ns G Differential Gain 0.2 % Differential Phase 0.2 Degree Total Harmonic Distortion f = 10 MHz, V = 1 V rms −60 dBc OUT Third-Order Intercept f = 40 MHz, gain = maximum, R = 50 Ω 15 dBm S ACCURACY Gain Accuracy, f = 100 kHz; Gain (dB) = (40 V + 10) dB −500 mV ≤ V ≤ +500 mV −1 ±0.5 +1 dB G G T to T −1.5 +1.5 dB MIN MAX Gain, f = 10.7 MHz V = -0.5 V −10.3 −9.0 −8.0 dB G V = 0.0 V +9.5 +10.5 +11.5 dB G V = 0.5 V +29.3 +30.3 +31.3 dB G Output Offset Voltage3 V = 0 V 20 mV G T to T 30 mV MIN MAX Output Offset Variation vs. V −500 mV ≤ V ≤ +500 mV 20 mV G G T to T 30 mV MIN MAX GAIN CONTROL INTERFACE Gain Scaling Factor 100 kHz 39.4 40 40.6 dB/V T to T 38 42 dB/V MIN MAX 10.7 MHz 38.7 39.3 39.9 dB/V GNEG, GPOS Voltage Range4 −1.2 +2.0 V Input Bias Current 50 100 250 nA Input Offset Current 10 nA Differential Input Resistance Pin 1 to Pin 2 50 MΩ Response Rate Full 40 dB gain change 80 dB/µs POWER SUPPLY Specified Operating Range ±4.75 ±6.3 V Quiescent Current 12.5 17 mA T to T 20 mA MIN MAX 1 Typical open or short-circuited input; noise is lower when system is set to maximum gain and input is short-circuited. This figure includes the effects of both voltage and current noise sources. 2 Using resistive loads of 500 Ω or greater or with the addition of a 1 kΩ pull-down resistor when driving lower loads. 3 The dc gain of the main amplifier in the AD603 is ×35.7; therefore, an input offset of 100 µV becomes a 3.57 mV output offset. 4 GNEG and GPOS, gain control, and voltage range are guaranteed to be within the range of −VS + 4.2 V to +VS − 3.4 V over the full temperature range of −40°C to +85°C. Rev. K | Page 3 of 24 Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Test Circuits Theory of Operation Noise Performance The Gain Control Interface Programming the Fixed-Gain Amplifier Using Pin Strapping Using the AD603 in Cascade Sequential Mode (Optimal SNR) Parallel Mode (Simplest Gain Control Interface) Low Gain Ripple Mode (Minimum Gain Error) Applications Information A Low Noise AGC Amplifier Caution Evaluation Board Outline Dimensions Ordering Guide