ADA4817-1ARD-EBZ Analog Devices, ADA4817-1ARD-EBZ Datasheet

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ADA4817-1ARD-EBZ

Manufacturer Part Number
ADA4817-1ARD-EBZ
Description
Amplifier IC Development Tools ADA4817-1AR-EBZ_A00973_EB-O8REDF-1Z
Manufacturer
Analog Devices
Type
High Speed Amplifiersr
Series
ADA4817r
Datasheet

Specifications of ADA4817-1ARD-EBZ

Rohs
yes
Product
Evaluation Boards
Tool Is For Evaluation Of
ADA4817-1ARDZ
Operating Supply Voltage
5 V to 10 V
Description/function
8 lead SOIC bare evaluation board
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Operating Supply Current
19 mA
Factory Pack Quantity
1
For Use With
ADA4817
Data Sheet
FEATURES
High speed
Low input bias current: 2 pA
Low input capacitance
Low noise
Low distortion
Offset voltage: 2 mV maximum
High output current: 40 mA
Supply current per amplifier: 19 mA
Power-down supply current per amplifier: 1.5 mA
APPLICATIONS
Photodiode amplifiers
Data acquisition front ends
Instrumentation
Filters
ADC drivers
CCD output buffers
GENERAL DESCRIPTION
The ADA4817-1 (single) and ADA4817-2 (dual) FastFET™
amplifiers are unity-gain stable, ultrahigh speed voltage
feedback amplifiers with FET inputs. These amplifiers were
developed with the Analog Devices, Inc., proprietary eXtra Fast
Complementary Bipolar (XFCB) process, which allows the
amplifiers to achieve ultralow noise (4 nV/√Hz; 2.5 fA/√Hz)
as well as very high input impedances.
With 1.3 pF of input capacitance, low noise (4 nV/√Hz), low
offset voltage (2 mV maximum), and 1050 MHz −3 dB band-
width, the ADA4817-1/ADA4871-2 are ideal for data acquisition
front ends as well as wideband transimpedance applications,
such as photodiode preamps.
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
−3 dB bandwidth (G = 1, R
Slew rate: 870 V/µs
0.1% settling time: 9 ns
Common-mode capacitance: 1.3 pF
Differential-mode capacitance: 0.1 pF
4 nV/√Hz @ 100 kHz
2.5 fA/√Hz @ 100 kHz
−90 dBc @ 10 MHz (G = 1, R
L
L
= 100 Ω): 1050 MHz
= 1 kΩ)
Document Feedback
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Technical Support
With a wide supply voltage range from 5 V to 10 V and the
ability to operate on either single or dual supplies, the
ADA4817-1/ ADA4817-2 are designed to work in a variety of
applications including active filtering and ADC driving.
The ADA4817-1 is available in a 3 mm × 3 mm, 8-lead LFCSP and
8-lead SOIC, and the ADA4817-2 is available in a 4 mm × 4 mm,
16-lead LFCSP. These packages feature a low distortion pinout
that improves second harmonic distortion and simplifies circuit
board layout. They also feature an exposed paddle that provides a
low thermal resistance path to the printed circuit board (PCB).
This enables more efficient heat transfer and increases reliability.
These products are rated to work over the extended industrial
temperature range (−40°C to +105°C).
ADA4817-1/ADA4817-2
CONNECTION DIAGRAMS
Figure 3. 16-Lead LFCSP (CP-16-20)
–V
+IN
–IN1
+IN1
©2008–2013 Analog Devices, Inc. All rights reserved.
–IN
PD
FB
–V
Figure 1. 8-Lead LFCSP (CP-8-2)
NC
–IN
+IN
FB
Figure 2. 8-Lead SOIC (RD-8-1)
S2
S
1
2
3
4
1
2
3
4
1
2
3
4
NC = NO CONNECT
NC = NO CONNECT
NC = NO CONNECT
ADA4817-1
ADA4817-1
(Not to Scale)
(Not to Scale)
ADA4817-2
(Not to Scale)
TOP VIEW
TOP VIEW
TOP VIEW
FastFET Op Amps
Low Noise, 1 GHz
8
7
6
5
8 +V
7 OUT
6 NC
5 –V
PD
+V
OUT
NC
12 –V
11 NC
10 +IN2
9 –IN2
S
S
S
S1
www.analog.com

Related parts for ADA4817-1ARD-EBZ

ADA4817-1ARD-EBZ Summary of contents

Page 1

... ADA4817-1/ ADA4817-2 are designed to work in a variety of applications including active filtering and ADC driving. The ADA4817-1 is available × 3 mm, 8-lead LFCSP and 8-lead SOIC, and the ADA4817-2 is available × 4 mm, 16-lead LFCSP. These packages feature a low distortion pinout that improves second harmonic distortion and simplifies circuit board layout ...

Page 2

... ADA4817-1/ADA4817-2 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Connection Diagrams ...................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 ±5 V Operation ............................................................................. Operation ............................................................................... 4 Absolute Maximum Ratings ............................................................ 5 Thermal Resistance ...................................................................... 5 Maximum Safe Power Dissipation ............................................. 5 ESD Caution .................................................................................. 5 Pin Configurations and Function Descriptions ........................... 6 Typical Performance Characteristics ............................................. 8 Test Circuits ..................................................................................... 13 Theory of Operation ...................................................................... 14 Closed-Loop Frequency Response ........................................... 14 Noninverting Closed-Loop Frequency Response ...

Page 3

... Sinking/sourcing Enabled Powered down − 4 5.5 V, −V = − −V = −4 −5 Rev Page ADA4817-1/ADA4817-2 Min Typ Max 1050 200 390 ≥410 60 60 870 9 −113/−117 −90/−94 −64/−66 4 2.5 0.4 2 ...

Page 4

... ADA4817-1/ADA4817 OPERATION T = 25° −V = − Table 2. Parameter DYNAMIC PERFORMANCE –3 dB Bandwidth Full Power Bandwidth 0.1 dB Flatness Slew Rate Settling Time to 0.1% NOISE/HARMONIC PERFORMANCE Harmonic Distortion (HD2/HD3) Input Voltage Noise Input Current Noise DC PERFORMANCE Input Offset Voltage ...

Page 5

... LFCSP_WQ (ADA4817-2) 64 MAXIMUM SAFE POWER DISSIPATION The maximum safe power dissipation for the ADA4817-1/ ADA4817-2 are limited by the associated rise in junction temperature ( the die. At approximately 150°C (which is J the glass transition temperature), the properties of the plastic change. Even temporarily exceeding this temperature limit may change the stresses that the package exerts on the die, permanently shifting the parametric performance of the ADA4817-x ...

Page 6

... ADA4817-1/ADA4817-2 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 5. ADA4817-1 Pin Function Descriptions (8-Lead LFCSP) Pin No. Mnemonic −IN 4 +IN 5 − OUT Exposed pad (EPAD) Table 6. ADA4817-1 Pin Function Descriptions (8-Lead SOIC) Pin No. Mnemonic −IN 3 +IN 4 −V ...

Page 7

... CONNECT NOTES 1. EXPOSED PAD CAN BE CONNECTED TO THE GROUND PLANE OR NEGATIVE SUPPLY PLANE. Figure 7. ADA4817-2 Pin Configuration (16-Lead LFCSP) Description Inverting Input 1. Noninverting Input 1. No Connect. Negative Supply 2. Output 2. Positive Supply 2. Power-Down 2. Do not leave floating. Feedback Pin 2. ...

Page 8

... ADA4817-1/ADA4817-2 TYPICAL PERFORMANCE CHARACTERISTICS T = 25° ± 348 Ω for G > 1 unless noted otherwise DUAL –3 –6 –9 –12 100k 1M 10M 100M FREQUENCY (Hz) Figure 8. Small Signal Frequency Response for Various Gains (LFCSP) ...

Page 9

... HD3 100Ω L 10M 100M = 2 V p-p Figure 18. Distortion vs. Frequency for Various Supplies, V OUT = 5V S 10M 100M = 2 V p-p OUT Rev Page ADA4817-1/ADA4817 –3 – +25°C, SINGLE +25°C, DUAL –40°C, SINGLE – –40°C, DUAL ...

Page 10

... ADA4817-1/ADA4817-2 0.15 DUAL 0.5pF F SINGLE 0.10 SINGLE 0.05 0 –0.05 –0. –0.15 TIME (5ns/DIV) Figure 20. Small Signal Transient Response 0.075 0.050 0.025 0 –0.025 R = 0Ω 100Ω –0.050 ± –0.075 TIME (5ns/DIV) Figure 21. Small Signal Transient Response vs. Package 6 2 × ...

Page 11

... FREQUENCY (Hz) Figure 28. Output Impedance vs. Frequency 100M 1G 1000 100M 1G 100M 1G Figure 31. Quiescent Current vs. Temperature for Various Supply Voltages Rev Page ADA4817-1/ADA4817-2 0.5 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 –40 – TEMPERATURE (°C) Figure 29. Offset Voltage vs. Temperature ...

Page 12

... ADA4817-1/ADA4817-2 1 ±5V S 1.5 –V 1.4 1.3 1.2 1.1 1.0 0 +5V S 0.8 –40 – TEMPERATURE (°C) Figure 32. Output Saturation Voltage vs. Temperature 70 60 GAIN 50 40 PHASE –10 10k 100k 1M 10M FREQUENCY (Hz) Figure 33. Open-Loop Gain and Phase vs. Frequency R = 100Ω OUT +V – OUT +V – OUT – ...

Page 13

... SNUB IN 49.9Ω 10µF 0.1µF –V S Figure 37. Capacitive Load Configuration 0.1µF V OUT OUT L 0.1µF V OUT Rev Page ADA4817-1/ADA4817 10µ 0.1µF 0.1µ 49.9Ω 10µF 0.1µF –V S Figure 38. Noninverting Gain Configuration +V S 10µF 0.1µF ...

Page 14

... Supply current and offset current are laser trimmed for optimum performance. These specifications make the ADA4817-1/ ADA4817-2 a great choice for high speed instrumentation and high resolution data acquisition systems. Its low noise, picoamp input current, precision offset, and high speed make them superb preamps for fast photo- diode applications ...

Page 15

... The V temperature drift is below 8 µV/°C; therefore, it can change up to 0.3 mV due to warm-up effects for an ADA4817-1/ADA4817 LFCSP The input bias current increases by a factor of 1.7 for every 10°C rise in temperature. ...

Page 16

... Due to package variations and pin-to-pin parasitics between the single and the dual models, the ADA4817-2 has a little more peaking then the ADA4817-1, especially at a gain of 2. The best way to tame the peaking is to place a feedback capacitor across the feedback resistor. Figure 46 shows the small signal frequency response of the ADA4817 gain ...

Page 17

... EXPOSED PADDLE The ADA4817-1/ADA4817-2 feature an exposed paddle, which lowers the thermal resistance by 25% compared to a standard SOIC plastic package. The exposed paddle of the ADA4817-1/ ADA4817-2 floats internally which provides the maximum flexibility and ease of use. It can be connected to the ground plane or to the negative power supply plane ...

Page 18

... Poor PCB layout, contaminants, and the board insulator material can create leakage currents that are much larger than the input bias current of the ADA4817-1/ADA4817-2. Any voltage differential between the inputs and nearby runs sets up leakage currents through the PCB insulator, for example 100 GΩ ...

Page 19

... The designer does not need to use the dedicated feedback pin to provide feedback for the ADA4817-1/ADA4817-2. The output pin of the ADA4817-1/ADA4817-2 can still be used to provide feedback to the inverting input of the ADA4817-1/ADA4817-2. WIDEBAND PHOTODIODE PREAMP ...

Page 20

... The current equivalent noise from the inverting terminal is typically negligible for most applications. The innovative architecture used in the ADA4817-1/ADA4817-2 makes balancing both inputs unnecessary, as opposed to traditional FET input amplifiers. Therefore, minimizing the impedance seen from the noninverting terminal to ground at all frequencies is critical for optimal noise performance ...

Page 21

... Data Sheet HIGH SPEED JFET INPUT INSTRUMENTATION AMPLIFIER Figure 53 shows an example of a high speed instrumentation amplifier with a high input impedance using the ADA4817-1/ ADA4817-2. The dc transfer function is     = −   OUT   ...

Page 22

... ADA4817-1/ADA4817 ideal candidate for active filters. Moreover, thanks to the low input bias current provided by the FET stage, the ADA4817-1/ADA4817-2 eliminate any dc errors. Figure 54 shows the frequency response of 90 MHz and 45 MHz LPFs. In addition to the bandwidth requirements, the slew rate must be capable of supporting the full power bandwidth of the filter ...

Page 23

... Data Sheet 0.15 0.10 90MHz 45MHz 0.05 0 –0.05 –0.10 –0.15 TIME (5ns/DIV) Figure 56. Small Signal Transient Response (Low-Pass Filter) 1.2 90MHz 0.8 0.4 0 –0.4 –0.8 –1.2 Figure 57. Large Signal Transient Response (Low-Pass Filter) Rev Page ADA4817-1/ADA4817-2 45MHz TIME (5ns/DIV) ...

Page 24

... ADA4817-1/ADA4817-2 OUTLINE DIMENSIONS PIN 1 INDICATOR 0.90 MAX 0.85 NOM SEATING PLANE 5.00 4.90 4. 1.27 BSC TOP VIEW 1.75 1.35 SEATING PLANE 0.51 0.31 Figure 59. 8-Lead Standard Small Outline Package with Exposed Pad [SOIC_N_EP] 3.25 0.60 MAX 3.00 SQ 2.75 0.60 MAX 2.95 2.75 SQ TOP VIEW 2.55 0.50 0.40 12° MAX 0.30 0.70 MAX 0.65 TYP 0.05 MAX FOR PROPER CONNECTION OF 0.01 NOM THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND 0 ...

Page 25

... ADA4817-1ACPZ-R7 –40°C to +105°C ADA4817-1ACP-EBZ ADA4817-1ARDZ –40°C to +105°C ADA4817-1ARDZ-RL –40°C to +105°C ADA4817-1ARDZ-R7 –40°C to +105°C ADA4817-1ARD-EBZ ADA4817-2ACPZ-R2 –40°C to +105°C ADA4817-2ACPZ-RL –40°C to +105°C ADA4817-2ACPZ-R7 –40°C to +105°C ADA4817-2ACP-EBZ RoHS Compliant Part. ...

Page 26

... ADA4817-1/ADA4817-2 NOTES Rev Page Data Sheet ...

Page 27

... Data Sheet NOTES Rev Page ADA4817-1/ADA4817-2 ...

Page 28

... ADA4817-1/ADA4817-2 NOTES ©2008–2013 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07756-0-5/13(B) Rev Page Data Sheet ...

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