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AD8029 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer AD8029
Beschreibung High Speed Rail-to-Rail Input / Output Amplifier
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 25 Seiten
AD8029 Datasheet, Funktion
Data Sheet
Low Power, High Speed
Rail-to-Rail Input/Output Amplifier
AD8029/AD8030/AD8040
FEATURES
Qualified for automotive applications
Low power: 1.3 mA supply current/amplifier
High speed
125 MHz, –3 dB bandwidth (G = +1)
60 V/µs slew rate
80 ns settling time to 0.1%
Rail-to-rail input and output
No phase reversal, inputs 200 mV beyond rails
Wide supply range: 2.7 V to 12 V
Offset voltage: 6 mV maximum
Low input bias current
+0.7 µA to –1.5 µA
Small packaging
SOIC-8, SC70-6, SOT23-8, SOIC-14, TSSOP-14
APPLICATIONS
Automotive safety and vision systems
Battery-powered instrumentation
Filters
A-to-D drivers
Buffering
GENERAL DESCRIPTION
The AD8029 (single), AD8030 (dual), and AD8040 (quad) are
rail-to-rail input and output high speed amplifiers with a quiescent
current of only 1.3 mA per amplifier. Despite their low power
consumption, the amplifiers provide excellent performance with
125 MHz small signal bandwidth and 60 V/µs slew rate. Analog
Devices, Inc., proprietary XFCB process enables high speed and
high performance on low power.
This family of amplifiers exhibits true single-supply operation
with rail-to-rail input and output performance for supply voltages
ranging from 2.7 V to 12 V. The input voltage range extends
200 mV beyond each rail without phase reversal. The dynamic
range of the output extends to within 40 mV of each rail.
The AD8029/AD8030/AD8040 provide excellent signal quality
with minimal power dissipation. At G = +1, SFDR is –72 dBc at
1 MHz and settling time to 0.1% is only 80 ns. Low distortion
and fast settling performance make these amplifiers suitable
drivers for single-supply analog-to-digital converters.
The versatility of the AD8029/AD8030/AD8040 allows the user
to operate the amplifiers on a wide range of supplies while con-
suming less than 6.5 mW of power. These features extend the
operation time in applications ranging from battery-powered
systems with large bandwidth requirements to high speed
Rev. B
Document Feedback
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
CONNECTION DIAGRAMS
NC 1
–IN 2
+IN 3
–VS 4
8 DISABLE
7 +VS
6 VOUT
5 NC
NC = NO CONNECT
VOUT 1
6 +VS
–VS 2
+–
5 DISABLE
+IN 3
4 –IN
Figure 1. SOIC-8 (R)
Figure 2. SC70-6 (KS)
VOUT 1 1
–IN 1 2
+IN 1 3
–VS 4
8 +VS
7 +VOUT 2
6 –IN 2
5 +IN 2
Figure 3. SOIC-8 (R) and
SOT23-8 (RJ)
VOUT 1 1
–IN 1 2
+IN 1 3
+VS 4
+IN 2 5
–IN 2 6
VOUT 2 7
14 VOUT 4
13 –IN 4
12 +IN 4
11 –VS
10 +IN 3
9 –IN 3
8 VOUT 3
Figure 4. SOIC-14 (R) and
TSSOP-14 (RU)
systems where component density requires lower power
dissipation. The AD8040W is an automotive grade version,
qualified for automotive applications.
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, –40°C to +125°C.
5.0
INPUT
4.5
OUTPUT
4.0
3.5
3.0
2.5
2.0
1.5
1.0
G = +1
0.5 VS = +5V
RL = 1kTIED TO MIDSUPPLY
0
TIME (µs)
Figure 5. Rail-to-Rail Response
1µs/DIV
03679-A-010
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2003–2012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com






AD8029 Datasheet, Funktion
Data Sheet
AD8029/AD8030/AD8040
Parameter
Conditions
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
50% of DISABLE to <10% of Final VO,
VIN = –1 V, G = –1
50% of DISABLE to <10% of Final VO,
VIN = –1 V, G = –1
VIN = –1 V to +6 V, G = –1
RL = 1 kΩ
AD8040W only: TMIN to TMAX
RL = 10 kΩ
AD8040W only: TMIN to TMAX
Sinking and Sourcing
Vin = 0.1 V p-p, f = 1 MHz, DISABLE = Low
30% Overshoot
POWER SUPPLY
Operating Range
Quiescent Current/Amplifier
Quiescent Current (Disabled)
AD8040W only: TMIN to TMAX
DISABLE = Low, AD8029 only
Power Supply Rejection Ratio
VS ± 1 V
AD8040W only: TMIN to TMAX
1 Plus, +, (or no sign) indicates current into pin; minus (–) indicates current out of pin.
Min Typ
0.2
155
90
–VS + 0.17
–VS + 0.17
–VS + 0.04
–VS + 0.04
45/50
95/60
–55
15
2.7
1.3
140
73 80
72
Max Unit
µA
ns
ns
+VS – 0.17
+VS – 0.17
+VS – 0.04
+VS – 0.04
ns
V
V
V
V
mA
dB
pF
12 V
1.5 mA
1.75 mA
200 µA
dB
dB
SPECIFICATIONS WITH +3 V SUPPLY
Table 3. VS = +3 V @ TA = 25°C, G = +1, RL = 1 kΩ to midsupply, unless otherwise noted. All specifications are per amplifier.
Parameter
Conditions
Min Typ
Max Unit
DYNAMIC PERFORMANCE
–3 dB Bandwidth
G = +1, VO = 0.1 V p-p
AD8040W only: TMIN to TMAX
80 112
80
MHz
MHz
G = +1, VO = 2 V p-p
AD8040W only: TMIN to TMAX
13 18
8
MHz
MHz
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
G = +2, VO = 0.1 V p-p
G = +1, VO = 2 V Step
G = –1, VO = 2 V Step
G = +2, VO = 2 V Step
6 MHz
55 V/µs
57 V/µs
110 ns
NOISE/DISTORTION PERFORMANCE
Spurious Free Dynamic Range (SFDR)
Input Voltage Noise
fC = 1 MHz, VO = 2 V p-p
fC = 5 MHz, VO = 2 V p-p
f = 100 kHz
–72 dBc
–60 dBc
16.5 nV/√Hz
Input Current Noise
f = 100 kHz
1.1 pA/√Hz
Crosstalk (AD8030/AD8040)
f = 5 MHz, VIN = 2 V p-p
–80 dB
DC PERFORMANCE
Input Offset Voltage
PNP Active, VCM = 1.5 V
AD8040W only: TMIN to TMAX
1.1 5
8
mV
mV
NPN Active, VCM = 2.5 V
AD8040W only: TMIN to TMAX
1.6 6
8
mV
mV
Input Offset Voltage Drift
Input Bias Current1
Input Bias Current1
Input Offset Current
TMIN to TMAX
NPN Active, VCM = 2.5 V
TMIN to TMAX
PNP Active, VCM = 1.5 V
TMIN to TMAX
24 µV/°C
0.7 1.2 µA
1 µA
–1.5 –2.5 µA
1.6 µA
±0.1 ±0.9 µA
AD8040W only: TMIN to TMAX
±0.9 µA
Rev. B | Page 5 of 24

6 Page









AD8029 pdf, datenblatt
Data Sheet
100
G = +1
75 VS = ±2.5V
50
25
0
–25
–50
–75
–100
25mV/DIV
TIME (ns)
20ns/DIV
03679-0-022
Figure 25. Small Signal Transient Response
2.5
G = +1
2.0 VS = ±2.5V
1.5
4V p-p
1.0
2V p-p
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5 0.5V/DIV
25ns/DIV
TIME (ns)
Figure 26. Large Signal Transient Response
4
INPUT
3
2
OUTPUT
1
G = –1 (RF = 1k)
RL = 1k
VS = ±2.5V
0
–1
–2
–3
1V/DIV
–4
TIME (ns)
200ns/DIV
03679-0-024
Figure 27. Output Overdrive Recovery
AD8029/AD8030/AD8040
100
G = +1
75 VS = ±2.5V
50
CL = 20pF
CL = 10pF
CL = 5pF
25
0
–25
–50
–75
–100
25mV/DIV
TIME (ns)
20ns/DIV
03679-0-025
Figure 28. Small Signal Transient Response with Capacitive Load
5.0
INPUT
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
G = +1
0.5 VS = +5V
RL = 1kTIED TO MIDSUPPLY
0
TIME (Seconds)
OUTPUT
1µs/DIV
03679-0-059
Figure 29. Rail-to-Rail Response, G = +1
4
INPUT
3
2
OUTPUT
1
G = +1
RL = 1k
VS = ±2.5V
0
–1
–2
–3
1V/DIV
–4
TIME (ns)
200ns/DIV
03679-0-027
Figure 30. Input Overdrive Recovery
Rev. B | Page 11 of 24

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