AD605A AD [Analog Devices], AD605A Datasheet
AD605A
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AD605A Summary of contents
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FEATURES Two Independent Linear-in-dB Channels Input Noise at Maximum Gain: 1.8 nV/√Hz, 2.7 pA/√Hz Bandwidth: 40 MHz (–3 dB) Differential Input Absolute Gain Range Programmable: – +34 dB (FBK Shorted to OUT) Through +48 ...
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... Quiescent Supply Current VPOS Power Down VPOS, VGN < Power-Up Response Time 48 dB Gain, V Power-Down Response Time (Each channel @ (Scaling = 20 dB/V), – +34 dB gain range, unless otherwise noted.) AD605A Min Typ 175 ± 40 3.0 2.5 ± 2.5 1.8 2.7 8.4 12 –20 40 170 2.5 ± 1.5 2 ± ...
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... AD605BN –40°C to +85°C AD605BR –40°C to +85°C AD605BR-REEL –40°C to +85°C AD605BR-REEL7 –40°C to +85°C AD605ACHIPS AD605-EB Pin No. Mnemonic Description 1 VGN1 CH1 Gain-Control Input and Power-Down Pin. If grounded, device is off, otherwise positive voltage increases gain. ...
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AD605–Typical Performance Characteristics (per Channel 2.5 V (20 dB/V Scaling MHz, R REF 40 –40 C, + –10 –20 0.1 0.5 0.9 1.3 1.7 2.1 2.5 2.9 VGN ...
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VGN = 2.9V (FBK = OPEN) 40 VGN = 2.9V (FBK = SHORT) VGN = 1.5V (FBK = OPEN) 20 VGN = 1.5V (FBK = SHORT) VGN = 0.1V (FBK = OPEN) 0 VGN = 0.1V (FBK = SHORT) ...
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AD605 – p-p O –35 VGN = 1.0V –40 –45 –50 HD3 –55 HD2 –60 –65 –70 100k 1M 10M 100M FREQUENCY (Hz) TPC 19. Harmonic Distortion vs. Frequency 15 10 INPUT 5 GENERATOR LIMIT = 21 ...
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VGN1 = p-p OUT1 – GND IN2 –50 VGN2 = 2.9V –60 VGN2 = 2.5V –70 VGN2 = 2.0V –80 VGN2 = 0.1V –90 100k 1M 10M 100M FREQUENCY (Hz) TPC 28. Crosstalk ...
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AD605 VREF VGN +IN –IN VPOS VOCM C3 EXT Figure 1. Simplified Block Diagram of a Single Channel of the AD605 THEORY OF OPERATION The AD605 is a dual channel, low noise variable gain amplifier. Figure 1 shows the simplified ...
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R R –6.908dB –13.82dB +IN 1.5R MID 1. –IN NOTE 1.5R = 144 One feature of the X-AMP architecture is that the output referred noise is constant versus gain over most of the gain range. ...
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AD605 The AFA makes a differential input structure possible since one of its inputs (G1) is fully differential; this input is made distributed gm stage. The second input (G2) is used for feed- back. The output of ...
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Two other easy combinations are possible to provide a gain range of – +82.8 dB: (1) make R1 a short and R2 an open; or (2) make R1 an open and R2 a short. The bandwidth for both ...
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AD605 0.180 (4.57) 0.150 (3.81) 0.130 (3.30) 0.110 (2.79) 4.00 (0.1575) 3.80 (0.1496) 0.25 (0.0098) 0.10 (0.0039) COPLANARITY CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE ...