AD8031ARZ Analog Devices Inc, AD8031ARZ Datasheet

IC OPAMP VF R-R LP LDIST 8SOIC

AD8031ARZ

Manufacturer Part Number
AD8031ARZ
Description
IC OPAMP VF R-R LP LDIST 8SOIC
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD8031ARZ

Slew Rate
35 V/µs
Design Resources
High Speed, Precision, Differential AC-Coupled Drive Circuit for AD7625 (CN0080) Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit, 10 MSPS AD7626 ADC (CN0105)
Amplifier Type
Voltage Feedback
Number Of Circuits
1
Output Type
Rail-to-Rail
-3db Bandwidth
80MHz
Current - Input Bias
450nA
Voltage - Input Offset
1000µV
Current - Supply
900µA
Current - Output / Channel
15mA
Voltage - Supply, Single/dual (±)
2.7 V ~ 12 V, ±1.35 V ~ 6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Op Amp Type
High Speed
No. Of Amplifiers
1
Bandwidth
80MHz
Supply Voltage Range
2.7V To 12V
Amplifier Case Style
SOIC
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Gain Bandwidth Product
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

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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 AD8031ARZ

AD8031ARZ Summary of contents

Page 1

FEATURES Low power Supply current 800 μA/amplifier Fully specified at +2 and ±5 V supplies High speed and fast settling MHz, −3 dB bandwidth (G = +1) 30 V/μs slew rate 125 ns ...

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 ...

Page 3

SPECIFICATIONS +2.7 V SUPPLY @ T = 25° 2 kΩ Table 1. Parameter DYNAMIC PERFORMANCE –3 dB Small Signal Bandwidth Slew Rate Settling Time to 0.1% DISTORTION/NOISE ...

Page 4

AD8031/AD8032 +5 V SUPPLY @ T = 25° kΩ Table 2. Parameter DYNAMIC PERFORMANCE −3 dB Small Signal Bandwidth Slew Rate Settling Time to 0.1% DISTORTION/NOISE ...

Page 5

V SUPPLY @ T = 25° ± kΩ Table 3. Parameter DYNAMIC PERFORMANCE −3 dB Small Signal Bandwidth Slew Rate Settling Time to 0.1% DISTORTION/NOISE PERFORMANCE ...

Page 6

AD8031/AD8032 ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Supply Voltage 1 Internal Power Dissipation 8-Lead PDIP (N) 8-Lead SOIC_N (R) 8-Lead MSOP (RM) 5-Lead SOT-23 (RJ) Input Voltage (Common Mode) Differential Input Voltage Output Short-Circuit Duration Storage Temperature Range (N, R, ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS –5 –4 –3 –2 – (mV) OS Figure 8. Typical V Distribution @ V OS 2.5 2.3 2 +5V S 1.9 V ...

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 –0.5 V ...

Page 9

105 100 – (Ω) LOAD Figure 20. Open-Loop Gain ( LOAD ...

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 –2 V ...

Page 11

V = ± + +2. 10k 100k 1M FREQUENCY (Hz) Figure 32. Large Signal Response RB = 50Ω 100 0.1 RB ...

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 ...

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 ...

Page 14

AD8031/AD8032 OUTPUT STAGE, OPEN-LOOP GAIN AND DISTORTION vs. CLEARANCE FROM POWER SUPPLY The AD8031 features a rail-to-rail output stage. The output transistors operate as common-emitter amplifiers, providing the output drive current as well as a large portion of the amplifier’s ...

Page 15

DRIVING CAPACITIVE LOADS Capacitive loads interact with an op amp’s output impedance to create an extra delay in the feedback path. This reduces circuit stability and can cause unwanted ringing and oscillation. A given value of capacitance causes much less ...

Page 16

AD8031/AD8032 APPLICATIONS A 2 MHz SINGLE-SUPPLY, BIQUAD BAND-PASS FILTER Figure 47 shows a circuit for a single-supply, biquad band-pass filter with a center frequency of 2 MHz. A 2.5 V bias level is easily created by connecting the noninverting inputs ...

Page 17

Figure 50 and Figure 51 show the output signal swing and frequency spectrum at 500 kHz. At this frequency, the output signal ( which has a peak-to-peak swing of 1.95 V OUT ( V), has ...

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 ...

Page 19

BSC 5 4 2.80 BSC 1.60 BSC PIN 1 0.95 BSC 1.90 1.30 BSC 1.15 0.90 1.45 MAX 0.22 0.08 0.15 MAX 0.50 SEATING 0.30 PLANE COMPLIANT TO JEDEC STANDARDS MO-178-A A Figure 56. 5-Lead Small ...

Page 20

... AD8031AR-REEL –40°C to +85°C AD8031AR-REEL7 –40°C to +85°C 1 AD8031ARZ –40°C to +85°C 1 AD8031ARZ-REEL –40°C to +85°C AD8031ARZ-REEL7 1 –40°C to +85°C AD8031ART-R2 –40°C to +85°C AD8031ART-REEL –40°C to +85°C AD8031ART-REEL7 –40°C to +85°C 1 AD8031ARTZ-R2 – ...

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