AD8029 Analog Devices, AD8029 Datasheet
AD8029
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AD8029 Summary of contents
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... The AD8029/AD8030 are the only low power, rail-to-rail input and output high speed amplifiers available in SOT23 and SC70 micro packages. The amplifiers are rated over the extended industrial temperature range, – ...
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... AD8029/AD8030/AD8040 TABLE OF CONTENTS Specifications..................................................................................... 3 Specifications with ±5 V Supply ................................................. 3 Specifications with +5 V Supply ................................................. 4 Specifications with +3 V Supply ................................................. 5 Absolute Maximum Ratings............................................................ 6 Maximum Power Dissipation ..................................................... 6 Typical Performance Characteristics ............................................. 7 Theory of Operation ...................................................................... 15 Input Stage................................................................................... 15 Output Stage................................................................................ 15 REVISION HISTORY Revision A 11/03—Data Sheet Changed from Rev Rev. A Change Added AD8040 part ...
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... Input Bias Current Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Input Resistance Input Capacitance Input Common-Mode Voltage Range Common-Mode Rejection Ratio DISABLE PIN (AD8029) DISABLE Low Voltage DISABLE Low Current DISABLE High Voltage DISABLE High Current Turn-Off Time Turn-On Time OUTPUT CHARACTERISTICS ...
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... DISABLE High Current Turn-Off Time Turn-On Time OUTPUT CHARACTERISTICS Overdrive Recovery Time (Rising/Falling Edge) Output Voltage Swing Short-Circuit Current Off Isolation (AD8029) Capacitive Load Drive POWER SUPPLY Operating Range Quiescent Current/Amplifier Quiescent Current (Disabled) Power Supply Rejection Ratio 1 Plus, +, (or no sign) indicates current into pin; minus (–) indicates current out of pin. ...
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... Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Input Resistance Input Capacitance Input Common-Mode Voltage Range Common-Mode Rejection Ratio DISABLE PIN (AD8029) DISABLE Low Voltage DISABLE Low Current DISABLE High Voltage DISABLE High Current Turn-Off Time Turn-On Time OUTPUT CHARACTERISTICS Output Overdrive Recovery Time ...
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... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. MAXIMUM POWER DISSIPATION The maximum safe power dissipation in the AD8029/AD8030/ AD8040 package is limited by the associated rise in junction temperature ( the die. The plastic encapsulating the die J locally reaches the junction temperature ...
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... Figure 11. Small Signal Frequency Response for Various Supplies ±5V +3V 100 03679-0-006 Figure 12. Large Signal Frequency Response for Various Supplies Rev Page AD8029/AD8030/AD8040 0.2 DASHED LINES p-p OUT SOLID LINES 0.1V p-p 0.1 OUT FREQUENCY (MHz) Figure 10 ...
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... AD8029/AD8030/AD8040 0.1V p-p O 20pF 4 10pF 3 2 5pF 1 0 –1 0pF –2 –3 –4 –5 –6 –7 – 100 FREQUENCY (MHz) Figure 13. Small Signal Frequency Response for Various –1 –2 –3 –4 –5 2V p-p 1V p-p –6 0.1V p-p –7 – FREQUENCY (MHz) Figure 14 ...
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... Figure 23. Harmonic Distortion vs. Input Common Mode Voltage 1000 100 03679-A-016 Figure 24. Voltage and Current Noise vs. Frequency Rev Page AD8029/AD8030/AD8040 p-p OUT SECOND HARMONIC: SOLID LINE THIRD HARMONIC: DASHED LINE R = 1kΩ 5kΩ 2kΩ ...
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... AD8029/AD8030/AD8040 100 ±2. –25 –50 –75 25mV/DIV –100 TIME (ns) Figure 25. Small Signal Transient Response 2 p ±2.5V 2.0 S 1.5 1.0 2V p-p 0.5 0 –0.5 –1.0 –1.5 –2.0 0.5V/DIV –2.5 TIME (ns) Figure 26. Large Signal Transient Response 4 INPUT 3 2 OUTPUT 1 0 –1 –2 –3 1V/DIV – ...
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... Figure 32. Common-Mode Rejection Ratio vs. Frequency – 1kΩ L DISABLE = LOW – 0.1V p-p IN –40 –50 –60 –70 –80 0 FREQUENCY (MHz) Figure 33. AD8029 Off-Isolation vs. Frequency ±2. +0.1% (0.1%/DIV) –0.1% 500ns/DIV 03679-0-062 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 – ...
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... AD8029/AD8030/AD8040 2 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 –2.5 – INPUT COMMON-MODE VOLTAGE (V) Figure 37. Input Bias Current vs. Input Common-Mode Voltage –1.0 –1.2 NPN ACTIVE –1.4 = ± –1.6 PNP ACTIVE –1.8 –2.0 –40 –25 –10 ...
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... DISABLE = LOW 100k 10k 1k 100 10 1 100k 1M 10M 100M FREQUENCY (Hz) Figure 43. AD8029 Output Impedance vs. Frequency, Disabled 0.5 LOAD RESISTANCE TIED TO MIDSUPPLY 0.4 0.3 0.2 V – 0.1 = ± –0.1 V – –0.2 –0.3 –0.4 –0.5 100 1000 LOAD RESISTANCE (Ω) Figure 44. Output Saturation Voltage vs. Load Resistance 170 = ± ...
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... TIME (ns) Figure 48. AD8029 DISABLE Turn-On Timing OUTPUT DISABLED = ±2. – 1kΩ) F 250 300 350 03679-A-020 Figure 49. AD8029 DISABLE Pin Current vs. DISABLE Pin Voltage OUTPUT ENABLED = ±2. – 1kΩ) F 250 300 350 03679-A-021 Rev Page ...
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... Devices’ XFCB process. The XFCB process enables the AD8029/ AD8030/AD8040 to operate on 2 supplies with a 120 MHz bandwidth and a 60 V/µs slew rate. A simplified sche- matic of the AD8029/AD8030/AD8040 is shown in Figure 50. INPUT STAGE For input common-mode voltages less than a set threshold (1 ...
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... Figure 52. Wideband Inverting Gain Configuration OUTPUT LOADING SENSITIVITY To achieve maximum performance and low power dissipation, the designer needs to consider the loading at the output of AD8029/AD8030/AD8040. Table 5 shows the effects of output loading and performance. When operating at unity gain, the effective load at the amplifier output is the resistance (R ) being driven by the amplifier ...
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... DISABLE PIN The AD8029 disable pin allows the amplifier to be shut down for power conservation or multiplexing applications. When in the disable mode, the amplifier draws only 150 µA of quiescent current. The disable pin control voltage is referenced to the negative supply. The amplifier enters power-down mode any time the disable pin is tied to the most negative supply or within 0 ...
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... AD8029/AD8030/AD8040 CIRCUIT CONSIDERATIONS PCB Layout High speed op amps require careful attention to PCB layout to achieve optimum performance. Particular care must be exercised to minimize lead lengths of the bypass capacitors. Excess lead inductance can influence the frequency response and even cause high frequency oscillations. Using a multilayer board with an internal ground plane can help reduce ground noise and enable a more compact layout ...
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... Figure 59. 14-Lead Standard Small Outline Package [SOIC] (R-14) 14 4.50 4.40 4.30 PIN 1 1.05 0.46 1.00 0.36 8° 0.80 0.26 4° 0° 0.15 0.05 Figure 60. 14-Lead Thin Shrink Small Outline Package [TSSOP] (RU-14) 0.60 8° 0.45 4° 0.30 0° Rev Page AD8029/AD8030/AD8040 8.75 (0.3445) 8.55 (0.3366 6.20 (0.2441) 5.80 (0.2283 1.27 (0.0500) 0.50 (0.0197) 1.75 (0.0689) BSC 0.25 (0.0098) 1.35 (0.0531) 8° 0.51 (0.0201) 0° SEATING 1.27 (0.0500) 0.25 (0.0098) PLANE 0.31 (0.0122) ...
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... AD8029/AD8030/AD8040 ORDERING GUIDE Model Minimum Ordering Quantity AD8029AR 1 AD8029AR-REEL 2,500 AD8029AR-REEL7 1,000 AD8029AKS-R2 250 AD8029AKS-REEL 10,000 AD8029AKS-REEL7 3,000 AD8030AR 1 AD8030AR-REEL 2,500 AD8030AR-REEL7 1,000 AD8030ARJ-R2 250 AD8030ARJ-REEL 10,000 AD8030ARJ-REEL7 3,000 AD8040AR 1 AD8040AR-REEL 2500 AD8040AR-REEL7 1000 AD8040ARU 1 AD8040ARU-REEL 2500 AD8040ARU-REEL7 1000 ESD CAUTION ESD (electrostatic discharge) sensitive device ...