AD8032 Analog Devices, AD8032 Datasheet

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AD8032

Manufacturer Part Number
AD8032
Description
Manufacturer
Analog Devices
Datasheet

Specifications of AD8032

-3db Bandwidth
80MHz
Slew Rate
35V/µs
Vos
1mV
Ib
450nA
# Opamps Per Pkg
2
Input Noise (nv/rthz)
15nV/rtHz
Vcc-vee
2.7V to 12V
Isy Per Amplifier
1.6mA
Packages
DIP,SOIC,SOP

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FEATURES
Low power
High speed and fast settling on 5 V
Rail-to-rail input and output
Low distortion
Output current: 15 mA
High grade option: V
APPLICATIONS
High speed, battery-operated systems
High component density systems
Portable test instruments
A/D buffers
Active filters
High speed, set-and-demand amplifiers
GENERAL DESCRIPTION
The AD8031 (single) and AD8032 (dual) single-supply, voltage
feedback amplifiers feature high speed performance with
80 MHz of small signal bandwidth, 30 V/μs slew rate, and 125 ns
settling time. This performance is possible while consuming less
than 4.0 mW of power from a single 5 V supply. These features
increase the operation time of high speed, battery-powered
systems without compromising dynamic performance.
The products have true single-supply capability with rail-to-rail
input and output characteristics and are specified for +2.7 V, +5 V,
and ±5 V supplies. The input voltage range can extend to 500 mV
beyond each rail. The output voltage swings to within 20 mV of
each rail providing the maximum output dynamic range.
The AD8031/AD8032 also offer excellent signal quality for only
800 μA of supply current per amplifier; THD is −62 dBc with a
2 V p-p, 1 MHz output signal, and –86 dBc for a 100 kHz,
4.6 V p-p signal on +5 V supply. The low distortion and fast
settling time make them ideal as buffers to single-supply ADCs.
Rev. D
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.
Supply current 800 μA/amplifier
Fully specified at +2.7 V, +5 V, and ±5 V supplies
80 MHz, −3 dB bandwidth (G = +1)
30 V/μs slew rate
125 ns settling time to 0.1%
No phase reversal with input 0.5 V beyond supplies
Input CMVR extends beyond rails by 200 mV
Output swing to within 20 mV of either rail
−62 dB @ 1 MHz, V
−86 dB @ 100 kHz, V
O
OS
= 2 V p-p
O
(maximum) = 1.5 mV
= 4.6 V p-p
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Operating on supplies from +2.7 V to +12 V and dual supplies
up to ±6 V, the AD8031/AD8032 are ideal for a wide range of
applications, from battery-operated systems with large bandwidth
requirements to high speed systems where component density
requires lower power dissipation. The AD8031/AD8032 are
available in 8-lead PDIP and 8-lead SOIC_N packages and
operate over the industrial temperature range of −40°C to
+85°C. The AD8031A is also available in the space-saving
5-lead SOT-23 package, and the AD8032A is available in an
8-lead MSOP package.
–V
–IN
+IN
NC
Figure 1. 8-Lead PDIP (N) and
S
1
2
3
4
NC = NO CONNECT
Figure 4. Input V
Rail-to-Rail I/O Amplifiers
AD8031
SOIC_N (R)
V
IN
+
2µs/DIV
Figure 6. Rail-to-Rail Performance at 100 kHz
CONNECTION DIAGRAMS
V
OUT
–V
Figure 3. 5-Lead SOT-23 (RJ-5)
+IN
2.7 V, 800 μA, 80 MHz
S
8
7
6
5
+
V
IN
IN
+5V
1
2
3
NC
+V
OUT
NC
= 4.85V p-p
©2008 Analog Devices, Inc. All rights reserved.
S
+
AD8031
AD8031/AD8032
OUT1
–IN1
+IN1
–V
1kΩ
SOIC_N (R), and MSOP (RM)
S
Figure 2. 8-Lead PDIP (N),
1
2
3
4
5
4
+V
–IN
1.7pF
S
Figure 5. Output V
+
AD8032
+ –
V
+2.5V
www.analog.com
OUT
2µs/DIV
8
7
6
5
+V
OUT2
–IN2
+IN2
S
V
G = +1
OUT
OUT
= 4.65V p-p

Related parts for AD8032

AD8032 Summary of contents

Page 1

... Figure 3. 5-Lead SOT-23 (RJ-5) Operating on supplies from +2 +12 V and dual supplies up to ±6 V, the AD8031/AD8032 are ideal for a wide range of applications, from battery-operated systems with large bandwidth requirements to high speed systems where component density requires lower power dissipation. The AD8031/AD8032 are available in 8-lead PDIP and 8-lead SOIC_N packages and operate over the industrial temperature range of − ...

Page 2

... AD8031/AD8032 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Connection Diagrams ...................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 +2.7 V Supply ................................................................................ Supply ................................................................................... 4 ±5 V Supply ................................................................................... 5 Absolute Maximum Ratings ............................................................ 6 Maximum Power Dissipation ..................................................... 6 ESD Caution .................................................................................. 6 Typical Performance Characteristics ............................................. 7 REVISION HISTORY 11/08—Rev Rev. D Change to Table 3 Column Heading .............................................. 5 Change to Ordering Guide ............................................................ 20 7/06— ...

Page 3

... DYNAMIC PERFORMANCE –3 dB Small Signal Bandwidth Slew Rate Settling Time to 0.1% DISTORTION/NOISE PERFORMANCE Total Harmonic Distortion Input Voltage Noise Input Current Noise Crosstalk (AD8032 Only) DC PERFORMANCE Input Offset Voltage Offset Drift Input Bias Current Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Common-Mode Input Resistance ...

Page 4

... Slew Rate Settling Time to 0.1% DISTORTION/NOISE PERFORMANCE Total Harmonic Distortion Input Voltage Noise Input Current Noise Differential Gain Differential Phase Crosstalk (AD8032 Only) DC PERFORMANCE Input Offset Voltage Offset Drift Input Bias Current Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Common-Mode Input Resistance ...

Page 5

... Slew Rate Settling Time to 0.1% DISTORTION/NOISE PERFORMANCE Total Harmonic Distortion Input Voltage Noise Input Current Noise Differential Gain Differential Phase Crosstalk (AD8032 Only) DC PERFORMANCE Input Offset Voltage Offset Drift Input Bias Current Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Common-Mode Input Resistance ...

Page 6

... MAXIMUM POWER DISSIPATION Rating The maximum power that can be safely dissipated by the 12.6 V AD8031/AD8032 is limited by the associated rise in junction temperature. The maximum safe junction temperature for 1.3 W plastic encapsulated devices is determined by the glass 0.8 W transition temperature of the plastic, approximately 150°C. ...

Page 7

... TEMPERATURE (°C) Figure 10. Input Bias Current vs. Temperature N = 250 Rev Page AD8031/AD8032 800 600 400 200 2. –200 –400 –600 –800 COMMON-MODE VOLTAGE (V) Figure 11 ...

Page 8

... AD8031/AD8032 2.7V CC –0 –1.0 –1 10V –2.0 –2.5 100 1k R (Ω) LOAD Figure 14. +Output Saturation Voltage vs 2.7V CC –0 –1.0 –1 10V –2.0 –2.5 100 1k R (Ω) LOAD Figure 15. +Output Saturation Voltage vs 2.7V CC –0.5 –1 – ...

Page 9

... Figure 24. Differential Gain and Phase @ V 100 = 0.3 10 4.5 5.0 OUT Rev Page AD8031/AD8032 500mV 500mV –1.5 0.5 2.5 4.5 6.5 INPUT VOLTAGE (V) 1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH 1ST 2ND 3RD 4TH 5TH 6TH 7TH 8TH 9TH 10TH 11TH = ± ...

Page 10

... AD8031/AD8032 –1 –2 –3 –4 –5 0.1 1 FREQUENCY (MHz) Figure 26. Unity Gain, −3 dB Bandwidth –16dBm IN +85° +25°C –1 – 2kΩ –3 V OUT V IN 50Ω –4 –5 0.1 1 FREQUENCY (MHz) Figure 27. Closed-Loop Gain vs. Temperature +2.7V ...

Page 11

... T V –0.5 OUT 100 200 5.5 4.5 3.5 2.5 1.5 0.5 –0.5 10M Figure 37. Output Voltage Phase Reversal Behavior Rev Page AD8031/AD8032 10k 100k 1M 10M 100M FREQUENCY (Hz) Figure 35. PSRR vs. Frequency 10kΩ 10µs/DIV Figure 36. Output Voltage ...

Page 12

... AD8031/AD8032 +2. GND L 0 10µs/DIV Figure 38. Output Swing 3 2.9 S 2.7 2.5 2.3 2.1 1.9 50ns/DIV Figure 39 Step Response –1 2.85 2.35 1.85 1. 0.85 1.35V 0. GND L 10µs/DIV Figure 40. Output Swing 1kΩ – 2.5kΩ 2kΩ ...

Page 13

... THEORY OF OPERATION The AD8031/AD8032 are single and dual versions of high speed, low power, voltage feedback amplifiers featuring an innovative architecture that maximizes the dynamic range capability on the inputs and outputs. The linear input common- mode range exceeds either supply voltage by 200 mV, and the amplifiers show no phase reversal up to 500 mV beyond supply ...

Page 14

... After the overdrive condition is removed, the amplifier must recover to normal operation in a reasonable amount of time. As shown in Figure 45, the AD8031/AD8032 recover within 100 ns from negative overdrive and within 80 ns from positive overdrive. ...

Page 15

... A given value of capacitance causes much less ringing when the amplifier is used with a higher noise gain. The capacitive load drive of the AD8031/AD8032 can be increased by adding a low valued resistor in series with the capacitive load. Introducing a series resistor tends to isolate the capacitive load from the feedback loop, thereby diminishing its influence ...

Page 16

... Figure 48. Frequency Response of 2 MHz Band-Pass Filter HIGH PERFORMANCE, SINGLE-SUPPLY LINE DRIVER Even though the AD8031/AD8032 swing close to both rails, the AD8031 has optimum distortion performance when the signal has a common-mode level half way between the supplies and when there is about 500 mV of headroom to each rail. If low ...

Page 17

... ADC input. The available output voltage swing of the circuit would therefore be doubled. 1.5V 100 90 1µ 50mV Figure 52. Output Signal Swing of Low Distortion Line Driver at 2 MHz +7dBm STOP 5MHz START 0Hz Figure 53. THD of Low Distortion Line Driver at 2 MHz Rev Page AD8031/AD8032 0.2V 200ns STOP 20MHz ...

Page 18

... AD8031/AD8032 OUTLINE DIMENSIONS 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. 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 0 ...

Page 19

... Figure 56. 5-Lead Small Outline Transistor Package [SOT-23] (RJ-5) Dimensions shown in millimeters 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 2. PIN 1 0.65 BSC 0.95 0.85 1.10 MAX 0.75 0.15 0.38 0.23 0.00 0.22 0.08 SEATING COPLANARITY PLANE 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 57. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters Rev Page AD8031/AD8032 10° 5° 0.60 0° 0.45 0.30 0.80 8° 0.60 0° 0.40 ...

Page 20

... AD8032ARMZ-REEL –40°C to +85°C 1 AD8032ARMZ-REEL7 –40°C to +85°C AD8032BN –40°C to +85°C 1 AD8032BNZ –40°C to +85°C AD8032BR –40°C to +85°C AD8032BR-REEL –40°C to +85°C AD8032BR-REEL7 –40°C to +85°C 1 AD8032BRZ –40°C to +85°C ...

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