AD604-EVALZ Analog Devices Inc, AD604-EVALZ Datasheet
AD604-EVALZ
Specifications of AD604-EVALZ
Related parts for AD604-EVALZ
AD604-EVALZ Summary of contents
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... Preamplifier gains between 5 and 10 (14 dB and 20 dB) provide overall gain ranges per channel through 48 dB and 6 dB through 54 dB. The two channels of the AD604 can be cascaded to provide greater levels of gain range by bypassing the preamplifier of the second channel. However, in multiple channel systems, ...
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... Ultralow Noise, Differential Input-Differential Output VGA ....................................................................................................... 21 Medical Ultrasound TGC Driving the AD9050, a 10-Bit, 40 MSPS ADC .................................................................................. 22 Evaluation Board ............................................................................ 24 Connecting a Waveform to the AD604-EVALZ ........................ 24 DSX Input Connections ............................................................ 24 Preamplifier Gain ....................................................................... 25 Outputs ........................................................................................ 25 DC Operating Conditions ......................................................... 25 Evaluation Board Artwork and Schematic ............................. 26 ...
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... V p-p, −12.5 OUT 15 −30 ±2 45 AD604 Max Unit kΩ nV/√Hz nV/√Hz pA/√ Ω nV/√Hz pA/√ MHz V/μs V Ω mA dBc dBc ...
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... AD604 Parameter ACCURACY Absolute Gain Error Gain Scaling Error Output Offset Voltage Output Offset Variation GAIN CONTROL INTERFACE Gain Scaling Factor Gain Range Input Voltage (VGN) Range Input Bias Current Input Resistance Response Time VREF Input Resistance POWER SUPPLY Specified Operating Range ...
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... AD604AN AD604AR AD604ARS 3 θ JC AD604AN AD604AR AD604ARS 1 Pin 1, Pin 2, Pin 11 to Pin 14, Pin 23, and Pin 24 are part of a single-supply circuit. The part is likely to suffer damage if any of these pins are accidentally connected to VN. 2 When driven from an external low impedance source. 3 Using MIL-STD-883 test method G43-87 with a 1S (2-layer) test board. ...
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... Channel 1 Gain Control Input and Power-Down Pin. If this pin is grounded, the device is off; otherwise, positive voltage increases gain. –DSX1 VGN1 1 24 +DSX1 VREF 2 23 PAO1 OUT1 3 22 FBK1 GND1 4 21 PAI1 VPOS 5 20 AD604 COM1 VNEG 6 19 TOP VIEW COM2 VNEG 7 (Not to Scale) 18 PAI2 VPOS 8 17 FBK2 GND2 9 16 PAO2 OUT2 10 ...
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... Figure 6. Gain Scaling vs. VREF +25°C –40°C 0 +85°C 0.2 0.7 1.2 1.7 2.2 VGN (V) Figure 7. Gain Error vs. VGN FREQ = 1MHz 0 FREQ = 5MHz FREQ = 10MHz 0.2 0.7 1.2 1.7 2.2 VGN (V) Figure 8. Gain Error vs. VGN at Different Frequencies AD604 2.50 2.7 2.7 ...
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... AD604 2.0 1.5 1.0 0.5 0 –0.5 30dB/V VREF = 1.67V –1.0 –1.5 –2.0 0.2 0.7 1.2 1.7 VGN (V) Figure 9. Gain Error vs. VGN for Two Gain Scaling Values –1.0 –0.8 –0.6 –0.4 –0.2 0.1 DELTA GAIN (dB) Figure 10. Gain Match; VGN1 = VGN2 = 1 –1.0 –0.8 – ...
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... Rev Page AD604 R ALONE SOURCE 10 100 R (Ω) SOURCE Figure 18. Input Referred Noise vs. R SOURCE VGN = 2.9V 10 100 1k R (Ω) SOURCE Figure 19. Noise Figure vs. R SOURCE R = 240Ω S 0.4 0.8 1.2 1.6 2.0 2.4 2.8 VGN (V) Figure 20. Noise Figure vs. VGN 1k 10k ...
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... AD604 – p-p O VGN = 1V –45 –50 HD2 –55 HD3 –60 –65 –70 100k 1M FREQUENCY (Hz) Figure 21. Harmonic Distortion vs. Frequency – p-p O –35 –40 –45 –50 –55 HD3 (10MHz) –60 –65 –70 HD2 (1MHz) –75 –80 0.5 0.9 1.3 1.7 VGN (V) Figure 22. Harmonic Distortion vs. VGN – ...
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... Figure 32. DSX Common-Mode Rejection Ratio vs. Frequency Rev Page 500mV 100 500mV 100ns Figure 30. Gain Response VGN1 = p-p OUT1 V = GND IN2 VGN2 = 2.9V VGN2 = 2V VGN2 = 1.5V VGN2 = 0.1V 1M 10M FREQUENCY (Hz) VGN = 2.9V VGN = 2.5V VGN = 2V VGN = 0.1V 1M 10M FREQUENCY (Hz) AD604 100M 100M ...
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... TEMPERATURE (°C) Figure 34. Input Bias Current vs. Temperature 10M 100M Rev Page (AD604 (PA (DSX –I (AD604) = –I (PA AD604 (+I 25 DSX (+ PREAMP (± (VGN = –40 – TEMPERATURE (°C) Figure 35. Supply Current (One Channel) vs. Temperature ...
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... VOCM pin is 45 kΩ ± 20%. GAIN CONTROL 175Ω C1 PAOx +DSXx R7 EXT. DIFFERENTIAL 40Ω ATTENUATOR C2 FBKx –DSXx R5 32Ω 175Ω R6 8Ω COMx Figure 37. Simplified Block Diagram of a Single Channel of the AD604 Rev Page (dB (dB/V) × VGN (V) – DISTRIBUTED OUTx 20Ω 820Ω AD604 ...
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... EXT Figure 38 shows how the preamplifier is set to gains of 14 dB, 17.5 dB, and 20 dB. The gain range of a single channel of the AD604 when the preamplifier is set (Figure 38a), 3 51.5 dB for a preamp gain of 17.5 dB (Figure 38b), and for the highest preamp gain (Figure 38c). ...
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... In applications that require more than gain range, two AD604 channels can be cascaded. Because the preamplifier has a limited input signal range and consumes over half (120 mW) of the total power (220 mW), and its ultralow noise is not necessary after the first AD604 channel, a shutdown mechanism that disables only the preamplifier is provided ...
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... AD604 AC COUPLING The DSX portion of the AD604 is a single-supply circuit and, therefore, its inputs need to be ac-coupled to accommodate ground-based signals. External Capacitors C1 and C2 in Figure 37 level shift the ground referenced preamplifier output from ground to the dc value established by VOCM (nominal 2.5 V). ...
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... VOCM buffer. If the dc level of the output signal is not critical, another coupling capacitor is normally used at the output of the DSX; again, this is done for level shifting and to eliminate any dc offsets contributed by the DSX (see the AC Coupling section). Rev Page AD604 ...
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... AD604 APPLICATIONS INFORMATION The basic circuit in Figure 43 shows the connections for one channel of the AD604. The signal is applied at Pin 5. RGN is normally 0, in which case the preamplifier is set to a gain of 5 (14 dB). When FBK1 is left open, the preamplifier is set to a gain of 10 (20 dB), and the gain range shifts dB. The ac coupling capacitors before − ...
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... ULTRALOW NOISE AGC AMPLIFIER WITH GAIN RANGE Figure 44 shows an implementation of an AGC amplifier with gain range using a single AD604. The signal is applied to connector VIN and, because the signal source is 50 Ω, a terminating resistor (R1) of 49.9 Ω is added. The signal is then amplified (Pin FBK1 shorted to PAO1) through the Channel 1 preamplifier and is further processed by the Channel 1 DSX ...
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... RF carrier where the modulating signal much lower frequency than the RF signal. The multiplier functions as the detector by squaring the output signal presented the AD604. A low-pass filter following the squaring operation removes the RF signal component at twice the incoming signal frequency, while passing the low frequency AM information ...
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... Figure 48) is recommended. The differential gain range of this circuit runs from dB, which higher than each individual channel of the AD604 because the DSX inputs now see twice the signal amplitude compared with when they are driven single-ended. ...
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... AD604 MEDICAL ULTRASOUND TGC DRIVING THE AD9050, A 10-BIT, 40 MSPS ADC The AD604 is an ideal candidate for the time gain control (TGC) amplifier that is required in medical ultrasound systems to limit the dynamic range of the signal that is presented to the ADC. Figure 52 shows a schematic of an AD604 driving typical medical ultrasound application. 0.1µ ...
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... Rev Page VG1 VREF C4 0.1µF OUT1 C2 R1 5pF 500Ω NOTE 3 C12 0.1µF OPTIONAL C11 +5V 0.1µF –5V C10 0.1µF C9 0.1µF NOTE 5pF 500Ω OUT2 C7 0.1µF VOCM 0.1µF VG2 A 50Ω 450Ω AD604 ...
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... Installing or changing additional parts, such as gain resistor values or SMA connectors for non- standard I/O, is discretionary. The AD604-EVALZ is fabricated on a 4-layer board with inner power and ground layers. Figure photograph of the top views of the board, assembly and artwork layers are shown in ...
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... GN1_ADJ VREF_ADJ VOCM_ADJ GN2_ADJ POWER SUPPLY FUNCTION GENERATOR SINE INPUT Figure 57. A Representative Test Setup of the AD604-EVALZ Rev Page Function Optional dc level for VGA Channel 1 Optional dc level to adjust reference voltage Output common-mode voltage adjustment Optional dc level for VGA Channel 2 OSCILLOSCOPE TO MONITOR VOUT ...
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... AD604 EVALUATION BOARD ARTWORK AND SCHEMATIC Figure 58. Component Side Copper Figure 59. Secondary Side Copper Figure 60. Internal Ground Plane Figure 61. Internal Power Plane Figure 62. Component Side Silkscreen of the AD604 Evaluation Board Rev Page ...
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... C2 17 0.1µF VPOS 16 OUT2 GND2 _TP 15 OUT2 OCMV VOCM EXT 14 VOCM C7 VGN2 INT 0.1µF 1 & VGN2 GN2 C12 1nF 2ONLY AD604 +5V 10kΩ GN1 _ADJ +5V VREF 10kΩ _ADJ OUT1 OUT2 10kΩ +5V VOCM _ADJ +5V 10kΩ GN2 _ADJ ...
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... AD604 OUTLINE DIMENSIONS 24 0.210 (5.33) MAX 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS. ...
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... AD604ARZ-RL −40°C to +85°C AD604ARS −40°C to +85°C AD604ARS-REEL7 −40°C to +85°C AD604ARSZ −40°C to +85°C AD604ARSZ-RL −40°C to +85°C AD604ARSZ-R7 −40°C to +85°C AD604-EVALZ RoHS Compliant Part. 8.50 8.20 7. 5.60 5.30 8.20 5.00 7.80 7 ...
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... AD604 NOTES Rev Page ...
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... NOTES Rev Page AD604 ...
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... AD604 NOTES ©1996–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00540-0-12/10(G) Rev Page ...