High Speed Amplifiers (BW > 50 MHz)
Low Noise/Low Distortion Amplifiers
ADA4896-2/ADA4897-1: Gain Stable, Low Power, 1nV/√Hz, Rail-to-Rail Output Op Amp
The ADA4896-2/ADA4897-1 are unity gain stable, low noise, rail-to-rail output, high speed voltage feedback amplifiers that have a quiescent current of 3 mA.
With the 1/f noise of 2 nV/√Hz @ 10 Hz and a spurious-free dynamic range of –95 dBc @ 2 MHz, the ADA4896-2/ADA4897-1 are an ideal solution in a
variety of applications, including ultrasound, automatic test equipment (ATE), active filters, and 16-bit PulSAR ADC drivers.
Features
•ꢀUnity-gain stable
10
•ꢀUltralow noise: 1 nV/√Hz, 9 pA/√Hz
•ꢀUltralow distortion: −110 dBc at 100 kHz
•ꢀHigh speed
•ꢀ −3 dB bandwidth: 200 MHz (G = +1)
•ꢀ Slew rate: 100 V/µs
•ꢀOffset voltage: 500 µV
•ꢀLow input bias current: 10 µA
•ꢀWide supply voltage range: 2.7 V to 10 V
•ꢀSupply current: 3 mA
Applications
1
0.1
1
10
100
1k
10k
100k
•ꢀAnalog-to-digital drivers
•ꢀInstrumentation
•ꢀActive filters
FREQUENCY (Hz)
Voltage noise vs. frequency.
•ꢀIF and baseband amplifiers
•ꢀDAC buffers
•ꢀOptical electronics
•ꢀUltrasound
Low Noise/Low Distortion Amplifiers
Distortion
Supply
Voltage
(V)
BW @ Slew
ACL Min Rate
(MHz) (V/ms)
Price
@ 1k
(OEM $US)
SFDR1 @ BW
Part
Number
No. of
Amps
ACL
Min
Noise
(nV/ z)
VOS Max
IB
IS/Amp
IOUT
Temp
Disable
Rail-to-Rail1
Packaging
√
H
(mV) (µA Max) (mA Typ) (mA) Range2
(dBc) (MHz)
AD8099
1
1
•
•
5, 65
5, 65
2
1
700
600
1350
310
–92
10
0.95
1
0.5
1
1
15
40
40
H3
H3
SOIC/LFCSP
SOIC/LFCSP
2.00
1.91
ADA4899-1
–123
0.5
0.23
14.7
ADA4857-1
ADA4857-2
1
2
•
•
0.86
1.41
1
1
1
1
850
200
200
65
2800
100
100
55
–88
110
10
0.1
0.1
0.1
4.4
1
4.5
0.5
3.3
10
5
3
50
90
90
40
H
H
H
H
SOIC/LFCSP
5, 65
3 to 10
3 to 10
ADA4896-2
2
RRIO
RRO
LFCSP/MSOP
3.20
ADA4897-1
ADA4897-2
1
2
•
•
SOIC/
SOT-23/MSOP
1.89
3.20
110
1
0.75
0.12
10
3
ADA4898-1
ADA4898-2
1
2
–116
0.9
0.4
8.1
SOIC
2.29
3.21
65, 612,
615
ADA4841-1
ADA4841-2
1
2
•
•
SOT-23/
SOIC MSOP
1.61
2.32
RRO
1
80
13
–105
0.1
2.1
0.5
5.3
1.2
60
H3
2.7, 5, 65
AD8021
AD8022
AD8045
AD8048
AD8047
1
2
1
1
1
•
5 , 65 , 612
5, 65, 612
5, 65
1
1
1
2
1
560
130
1000
260
250
130
50
–93
-95
–95
–72
–78
1
1
2.1
2.5
3
1
6
1
3
3
11.3
5
7.8
4
70
55
70
50
50
I
I
SOIC/MSOP
SOIC/MSOP
SOIC/LFCSP
SOIC
1.31
2.38
1.41
2.30
2.53
1350
1000
750
10
5
6.3
3.5
3.5
16
6.6
6.6
H3
I
5, 65
3.8
5.2
5, 65
5
I
SOIC
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).
Recommended for automotive (from high speed amplifiers selection guide).
3
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