AD8432ACPZ-RL Analog Devices Inc, AD8432ACPZ-RL Datasheet
AD8432ACPZ-RL
Specifications of AD8432ACPZ-RL
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AD8432ACPZ-RL Summary of contents
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FEATURES Low noise Input voltage noise: 0.85 nV/√Hz Current noise: 2.0 pA/√Hz High speed 200 MHz bandwidth (G = 12.04 dB) 295 V/µs slew rate Selectable gain G = 12.04 dB (× 18.06 dB (× 21.58 ...
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AD8432 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 5 Thermal Resistance ...................................................................... 5 Maximum Power Dissipation ..................................................... 5 ...
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SPECIFICATIONS 25° Ω 12.04 dB (single-ended input to differential output MHz, unless otherwise specified. Table 1. Parameter DYNAMIC ...
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AD8432 Parameter Two-Tone IMD3 Distortion 10 MHz 1 MHz Input 1dB Compression Point Output Third-Order Intercept 1 MHz 10 MHz 1 MHz 10 MHz Crosstalk DC PERFORMANCE Input Offset Voltage Input Offset Voltage Drift INPUT CHARACTERISTICS Input Voltage Range Input ...
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ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Voltage Supply Voltage Input Voltage Power Dissipation Temperature Operating Temperature Storage Temperature Package Glass Transition Temperature (T Lead Temperature (Soldering, 60 sec) Stresses above those listed under Absolute Maximum Ratings may cause permanent damage ...
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AD8432 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 INH1 LNA1 Noninverting Input. 2 INL1 LNA1 Inverting Input (AC-Coupled to Ground IND1, IND2 Integrated Input Clamping Back-to-Back Diodes. 4 COMM Input ...
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TYPICAL PERFORMANCE CHARACTERISTICS 25° Ω 12.04 dB (single-ended input to differential output MHz, unless otherwise specified ...
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AD8432 –6 – 24.08dB G = 21.58dB – 18.06dB G = 12.04dB – FREQUENCY (MHz) Figure 9. Differential Gain vs. Frequency ...
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FREQUENCY (MHz) Figure 15. Output Impedance vs. Frequency in Disable Mode 1MHz 1 R THERMAL S NOISE ALONE 0 100 SOURCE RESISTANCE (Ω) Figure 16. Input-Referred Voltage Noise ...
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AD8432 0.01 0.1 1 FREQUENCY (MHz) Figure 21. Output Voltage Noise vs. Frequency 0 LOW TONE HIGH TONE –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 1 ...
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HD2, 1MHz, 2V p-p HD2, 1MHz, 1V p-p HD3, 1MHz, 2V p-p –60 HD3, 1MHz, 1V p-p –70 –80 –90 –100 –110 (pF) L Figure 27. Harmonic Distortion at 1 MHz vs. Capacitive Load ...
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AD8432 –60 –65 –70 –75 –80 –85 –90 –95 0 200 400 600 800 1000 1200 1400 1600 1800 2000 R (Ω) L Figure 33. Harmonic Distortion at 1 MHz vs. Resistive Load ( 24.08 dB –50 –60 ...
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G = 24.08dB G = 21.58dB G = 18.06dB G = 12.04dB 10ns/DIV Figure 39. Small Signal Transient Response vs. Gain, V 10ns/DIV Figure 40. Small Signal Transient Response 12.04 dB 10ns/DIV Figure 41. Small Signal Transient Response ...
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AD8432 G = 18.06dB G = 12.04dB G = 21.58dB G = 24.08dB 10ns/DIV Figure 45. Small Signal Transient Response vs. Gain 24.08dB G = 21.58dB G = 18.06dB G = 12.04dB 10ns/DIV Figure 46. Large Signal ...
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G = 12.04dB G = 21.58dB G = 18.06dB G = 24.08dB 10ns/DIV Figure 51. Large Signal Transient Response vs. Gain, V –20 –30 –40 –50 –60 –70 – 24.08dB NO BYPASS CAPS –90 –100 0.01 0.1 1 ...
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AD8432 TEST CIRCUITS 1MHz (10MHz LPF 1MHz (10MHz 1MHz (10MHz LPF) 0.1µ 0.1µF 1MHz C (10MHz) SH 0.1µ 0.1µF 0.1µF 0.1µ 0.1µF 0.1µF INH INH OPL ...
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R FB 10MHz X MULTIPLIER 0.1µF INH INL C SH 1MHz 0.1µF Figure 61. Overdrive Recovery Measurements R FB NETWORK ANALYZER 0.1µF 50Ω OUT INH R SH INL C SH 0.1µF Figure 62. Input Impedance vs. ...
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AD8432 THEORY OF OPERATION LOW NOISE AMPLIFIER (LNA) The AD8432 is a dual-channel, ultralow noise amplifier with integrated pin-strappable, gain-setting resistors. The resistors can be externally connected to achieve differential gains of 12.04 dB, 18.06 dB, 21.58 dB, and 24.08 ...
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Table 5. Gain Setting Using a Pin-Strapping Technique and −3 dB Bandwidth for Each Gain Configuration Differential Single −3 dB Gain (dB) Gain (dB) BW (MHz) 12.04 6.02 200 18.06 12.04 90 21.58 15.56 50 24.08 18.06 32 The single-ended ...
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AD8432 RESISTIVE TERMINATION 5 4 ACTIVE IMPEDANCE MATCH 3 2 UNTERMINATED 1 (SIMULATED RESULTS 100 R (Ω) S Figure 67. Noise Figure vs. R for Resistive, Active Match, and S Unterminated Inputs ...
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APPLICATIONS INFORMATION The AD8432 LNA provides precision gain and ultralow noise performance with minimal external components. Because high performance part, care must be taken to ensure that it is configured optimally to attain the best performance and ...
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AD8432 Table 7. External Component Selections for Common Input Impedance R (Ω) Gain (dB 100 200 ...
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I/Q DEMODULATION FRONT END The AD8432 low noise amplifiers can be used to drive the differential RF inputs of the dual AD8333 I/Q demodulators. The primary application for the AD8339 is phased array beamforming in medical ultrasound, specifically in CW ...
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AD8432 DIFFERENTIAL-TO-SINGLE-ENDED CONVERSION Some applications require the low noise and high dynamic range of the AD8432; however, they may also require a single- ended output, rather than a differential output. The or AD8130 differential receiver amplifier can be used for ...
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EVALUATION BOARD Figure 73 shows the AD8432 evaluation board, and the schematic diagram is shown in Figure 74. Using the board is a convenient and fast way to verify system design and assess the performance of the AD8432 under user-specific ...
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AD8432 SCHEMATIC GML1 19 12 GML2 20 11 GMH1 GMH2 10 GOH1 21 GOH2 OPH1 22 9 OPH2 VPS1 23 8 VPS2 7 ENB 24 IND2 Figure 74. Schematic Rev Page 08341-042 ...
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POWER SUPPLY The AD8432 should be powered by a single 5 V supply connected to the VPOS terminal. Separate supplies can be used for VPS1, VPS2, and ENB, or they can all be tied to VPOS by shorting the W3 ...
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... SEATING PLANE ORDERING GUIDE Model 1 Temperature Range AD8432ACPZ-R7 −40°C to +85°C AD8432ACPZ-RL −40°C to +85°C AD8432ACPZ-WP −40°C to +85°C AD8432-EVALZ RoHS Compliant Part. ©2009-2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. ...