High Speed Amplifiers (BW > 50 MHz)
Current Feedback Amplifiers
AD8000: 1.5 GHz Ultrahigh Speed Op Amp
The AD8000 is an ultrahigh speed, high performance, current feedback amplifier. Using ADI’s proprietary eXtra Fast Complementary Bipolar (XFCB) process,
the amplifier can achieve a small signal bandwidth of 1.5 GHz and a slew rate of 4100 V/ms.
Features
•ꢀHigh speed
3
V
R
= ꢀ5V
S
L
•ꢀ 1.5 GHz, −3 dB bandwidth (G = +1)
•ꢀ 650 MHz, full power bandwidth (G = +2, VO = 2 V p-p)
•ꢀ Slew rate: 4100 V/ms
2
1
= 150ꢁ
V
= 2V p-p
OUT
0
•ꢀ 0.1% settling time: 12 ns
–1
–2
–3
–4
–5
–6
–7
•ꢀ 0.1 dB flatness: 170 MHz
√
•ꢀLow noise: 1.6 nV/ Hz input voltage noise
G = +2, R = 432ꢁ
F
•ꢀLow distortion over wide bandwidth
•ꢀ 75 dBc SFDR @ 20 MHz
•ꢀ 62 dBc SFDR @ 50 MHz
•ꢀInput offset voltage: 1 mV typ
•ꢀHigh output current: 100 mA
•ꢀWide supply voltage range: 4.5 V to 12 V
•ꢀSupply current: 13.5 mA
1
10
100
1000
FREQUENCY (MHz)
Large signal frequency response.
Applications
•ꢀProfessional video
•ꢀHigh speed instrumentation
•ꢀVideo switching
•ꢀIF/RF gain stage
•ꢀCCD imaging
Current Feedback Amplifiers
Distortion
Supply
BW @ Slew
ACL MIN Rate
(MHz) (V/ms)
Price
@ 1k
(OEM $US)
Part
Number
No. of
Amps
ACL
MIN
Noise
(nV/ z) (pa/√H
Noise3
z)
VOS Max
(mV)
IB
IS/Amp
IOUT Temp
SFDR1 @ BW
Disable Voltage Rail-to-Rail1
(V)
Packaging
√
H
(µA Max) (mA Typ) (mA) Range2
(dBc) (MHz)
Value
ADA4860-1
ADA4861-3
1
3
•
•
1
1
800
730
790
680
–75
–68
10
10
4
1.5/7.7
1.7/5.5
13
13
10
13
6
6
85
I
I
SOT-23
SOIC
0.55
0.95
5, 6 5
5, 6 5
3.8
100
ADA4862-3
AD8014
3
1
•
2
1
1
500
480
100
1050 –68
4000 –70
10 10.6 (RTO)
1.4
5
25 (RTO)
1
5.5
1.1
3.5
75
50
30
I
I
I
SOIC
0.95
1.19
5, 6 5
5, 6 5
5, 6 5
5
5
3.5
3
5
6
15
12
SOT-23/SOIC
SOIC/MSOP
AD8072
AD8073
2
3
1.65
2.15
500
–64
6
High Performance
AD8000
AD8003
1
3
•
•
3.4/26
3/36
1
1
1
1500 4100 –75
1000 5500 –38
20
20
5
1.6
1.9
2
10
5
45
150
25
13.5
14
5
100
175
70
H5
SOIC/LFCSP
SOT-23/SOIC
SOT-23/SOIC
1.68
1.75
1.49
5, 6 5
5, 6 5
6 5
AD8009
1
46/41
I
I
AD8001
AD8002
1
2
880
650
1000 –66
1000 –83
2/18
5.5
AD8007
AD8008
1
2
SC70/SOT-23/
SOIC/MSOP
1.31
2.19
1
20
2.7
2/23
4
8
9
30
I
5, 6 5
AD8011
AD8023
AD8005
AD8004
ADA4310-1
AD8017
AD8013
1
3
1
4
2
2
3
1
1
1
1
2
1
1
400
400
270
250
190
160
140
3500 –75
1200 –78
1500 –53
3000 –78
5
5
2
5
14
5
5
15
45
10
90
6
1
30
70
I
I
I
I
I
I
I
SOIC
SOIC
2.27
5.14
1.63
4.35
1.43
2.36
4.82
5, 6 5
5, 6 5
5, 6 5
5, 6 5
5, 6 5
5, 6 5
5, 6 5
•
2
6.2
0.4
3.5
7.6
7
5
4
1.1/.9.1
38
30
3.5
1
10
SOT-23
SOIC
5
1.5
2.9
1.9
3.5
50
•
•
820
–95
1
22
250
270
30
LFCSP/MSOP
SOIC
1600 –78
1000 –76
0.5
5
23/21
12
3
67
15
5
4
SOIC
With Charge Pump
ADA4858-3
ADA4859-3
3
3
•
•
3, 5
3, 5
1
2
600
195
600
740
–71
–70
5
5
4
2/9
2
14
13
2
19
17
21
19
H
H
LFCSP
LFCSP
1.69
1.69
17 (RTO)
25 (RTO)
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).
3 Noise first entry is noninverting input, second entry is inverting input.
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