High Speed Amplifiers (BW > 50 MHz)
Rail-to-Rail Input/Output Amplifiers
ADA8031/ADA8032: 2.7 V, 800 µA, 80 MHz Rail-to-Rail I/O Amplifiers
The AD8031 (single) and AD8032 (dual) single-supply, voltage feedback amplifiers feature high speed performance with 80 MHz of small signal bandwidth
and 30 V/µs slew rate. 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.
Features
•ꢀLow power
V
= 4.85V p-p
IN
•ꢀ Supply current: 800 µA/amplifier
•ꢀ Fully specified at +2.7 V, +5 V, and ±5 V supplies
•ꢀHigh speed and fast settling on 5 V
•ꢀ 80 MHz, −3 dB bandwidth (G = +1)
•ꢀ 30 V/µs slew rate
•ꢀ 125 ns settling time to 0.1%
•ꢀRail-to-rail input and output
2ꢀs/DIV
•ꢀ 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
•ꢀLow distortion
Input VIN.
V
= 4.65V p-p
OUT
•ꢀ −62 dB @ 1 MHz, VO = 2 V p-p
•ꢀ −86 dB @ 100 kHz, VO = 4.6 V p-p
•ꢀOutput current: 15 mA
G = +1
Applications
•ꢀHigh speed, battery-operated systems
•ꢀHigh component density systems
•ꢀPortable test instruments
•ꢀAnalog-to-Digital buffers
•ꢀActive filters
2ꢀs/DIV
Output: VOUT
.
•ꢀHigh speed, set-and-demand amplifiers
Rail-to-Rail Input/Output Amplifiers
Distortion
Supply
Voltage
(V)
BW @ Slew
ACL Min Rate
(MHz) (V/ms)
Price
@ 1k
(OEM $US)
Part
Number
No. of
Amps
ACL
Min
Noise
(nV/ z)
VOS Max
(mV)
IB
IS/Amp
IOUT Temp
SFDR1 @ BW
Disable
Rail-to-Rail1
Packaging
√H
(µA Max) (mA Typ) (mA) Range2
(dBc) (MHz)
AD8031
AD8032
1
2
1.32
1.97
RRIO
RRO
1
1
80
35
–77
0.5
15
22
1.5
4
1.2
1.6
0.9
1.4
15
1
SOT-23/MSOP
2.7, 5, 65
ADA4853-1
ADA4853-2
ADA4853-3
1
2
3
•
•
•
0.56
0.70
0.86
SC70/LFCSP/
TSSOP
3, 5
100
120
–90
1
120
H5
ADA4855-3
ADA4856-3
3
3
•
•
3, 5
3, 5
RRO
RRO
1
2
410
225
870
800
–84
–92
5
5
6.8
14
3
3.8
3.8
7.8
7.8
40
H
H
LFCSP
LFCSP
1.39
1.39
3.4
7.5
AD8091
AD8092
1
2
SOT-23/SOIC/
MSOP
0.70
0.90
RRO
1
110
145
–71
5
16
10
2.5
4.4
45
I
3, 5, 65
AD8051
AD8052
AD8054
1
2
4
0.86
1.62
2.88
SOT-23/SOIC/
TSSOP/MSOP
RRO
1
110
170
–72
5
16
11
2.5
4.8
45
H5
3, 5, 65
AD8029
AD8030
AD8040
1
2
4
•
•
0.86
1.21
1.62
SC70/SOIC/
TSSOP/MSOP
RRIO
RRO
1
1
125
170
62
–74
1
5
16.5
15
5
1.3
3.2
1.3
6
20
50
H
I
2.7, 5, 65
3, 5, 65
AD8041
AD8042
AD8044
1
2
4
1.95
2.28
4.00
225
220
–78
–81
9.8
SOIC
ADA4850-1
ADA4850-2
1
2
•
•
0.56
0.70
2.7, 5
RRO
1
1
175
190
1
1
10
4.2
0.9
4.2
6
2.5
6.5
90
25
H
LFCSP
AD8027
AD8028
1
2
•
•
SOT-23/SOIC/
MSOP
1.20
1.91
RRIO
100 –120
4.3
H5
3, 5, 65
1 RRIO: rail-to-rail input/output, RRO: rail-to-rail output, SS: single supply (IVR includes –VSY).
2
Temp range: H = extended industrial (–40°C to +125°C), I = industrial (–40°C to +85°C).
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