ADA4891-1_17 Datasheet, PDF (1/24 Pages) Analog Devices – Low Cost CMOS, High Speed, Rail-to-Rail Amplifiers

Data Sheet
Low Cost CMOS, High Speed,
Rail-to-Rail Amplifiers
ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4
FEATURES
Qualified for automotive applications
High speed and fast settling
−3 dB bandwidth: 220 MHz (G = +1)
Slew rate: 170 V/μs
Settling time to 0.1%: 28 ns
Video specifications (G = +2, RL = 150 Ω)
0.1 dB gain flatness: 25 MHz
Differential gain error: 0.05%
Differential phase error: 0.25°
Single-supply operation
Wide supply range: 2.7 V to 5.5 V
Output swings to within 50 mV of supply rails
Low distortion: 79 dBc SFDR at 1 MHz
Linear output current: 125 mA at −40 dBc
Low power: 4.4 mA per amplifier
APPLICATIONS
Automotive infotainment systems
Automotive driver assistance systems
Imaging
Consumer video
Active filters
Coaxial cable drivers
Clock buffers
Photodiode preamp
Contact image sensor and buffers
GENERAL DESCRIPTION
The ADA4891-1 (single), ADA4891-2 (dual), ADA4891-3 (triple),
and ADA4891-4 (quad) are CMOS, high speed amplifiers that
offer high performance at a low cost. The amplifiers feature true
single-supply capability, with an input voltage range that extends
300 mV below the negative rail.
In spite of their low cost, the ADA4891-1/ADA4891-2/ADA4891-3/
ADA4891-4 family provides high performance and versatility.
The rail-to-rail output stage enables the output to swing to within
50 mV of each rail, enabling maximum dynamic range.
The ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 family of
amplifiers is ideal for imaging applications, such as consumer
video, CCD buffers, and contact image sensor and buffers. Low
distortion and fast settling time also make them ideal for active
filter applications.
The ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 are avail-
able in a wide variety of packages. The ADA4891-1 is available
in 8-lead SOIC and 5-lead SOT-23 packages. The ADA4891-2
is available in 8-lead SOIC and 8-lead MSOP packages. The
ADA4891-3 and ADA4891-4 are available in 14-lead SOIC and
Rev. F
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CONNECTION DIAGRAMS
ADA4891-1
NC 1
–IN 2
+IN 3
–V_S 4
8 NC
7 +V_S
6 OUT
5 NC
NC = NO CONNECT
Figure 1. 8-Lead SOIC_N (R-8)
ADA4891-1
OUT 1
–V_S 2
+IN 3
5 +V_S
4 –IN
Figure 2. 5-Lead SOT-23 (RJ-5)
ADA4891-2
OUT1 1
–IN1 2
+IN1 3
–V_S 4
8 +V_S
7 OUT2
6 –IN2
5 +IN2
NC = NO CONNECT
Figure 3. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8)
ADA4891-3
PD1 1
14 OUT2
PD2 2
13 –IN2
PD3 3
12 +IN2
+V_S 4
+IN1 5
11 –V_S
10 +IN3
–IN1 6
9 –IN3
OUT1 7
8 OUT3
Figure 4. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14)
ADA4891-4
OUT1 1
–IN1 2
+IN1 3
+V_S 4
+IN2 ⁵
–IN2 6
OUT2 7
14 OUT4
13 –IN4
12 +IN4
11 –V_S
10 +IN3
9 –IN3
8 OUT3
Figure 5. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14)
14-lead TSSOP packages. The amplifiers are specified to operate
over the extended temperature range of −40°C to +125°C.
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