Low Power, High Speed
Rail-to-Rail Input/Output Amplifier
Data Sheet
Rev. B
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FEATURES
Qualified for automotive applications
Low power: 1.3 mA supply current/amplifier
High speed
125 MHz, –3 dB bandwidth (G = +1)
60 V/s 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 A to –1.5 A
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
CONNECTION DIAGRAMS
NC = NO CONNECT
NC
1
–IN
2
+IN
3
–VS 4
DISABLE
+VS
VOUT
NC
8
7
6
5
03679-A-004
VOUT 1
–VS 2
+IN
3
5
DISABLE
6
+VS
4
–IN
+
–
03679-A-002
Figure 1. SOIC-8 (R)
Figure 2. SC70-6 (KS)
VOUT 1 1
–IN 1
2
+IN 1
3
–VS 4
+VOUT 2
+VS
–IN 2
+IN 2
8
7
6
5
03679-A-003
+VS 4
+IN 2
5
–IN 2
6
VOUT 2 7
+IN 3
–VS
–IN 3
VOUT 3
11
10
9
8
VOUT 1 1
–IN 1
2
+IN 1
3
VOUT 4
–IN 4
+IN 4
14
13
12
03679-A-001
Figure 3. SOIC-8 (R) and
SOT23-8 (RJ)
Figure 4. SOIC-14 (R) and
TSSOP-14 (RU)
GENERAL DESCRIPTION
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/s 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
systems where component density requires lower power
dissipation. The AD8040W is an automotive grade version,
qualified for automotive applications.
Th
e 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.
TIME (
s)
03679-A-010
VOLTAGE
(V)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
1
s/DIV
G = +1
VS = +5V
RL = 1k TIED TO MIDSUPPLY
INPUT
OUTPUT
Figure 5. Rail-to-Rail Response