Low Cost CMOS, High Speed, Rail-to-Rail Amplifiers
ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4
FEATURES
High speed and fast ...
Low Cost
CMOS, High Speed, Rail-to-Rail
Amplifiers
ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4
FEATURES
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
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CONNECTION DIAGRAMS
ADA4891-1
NC 1 –IN 2 +IN 3 –VS 4
8 7 6 5
NC +VS OUT
08054-026
08054-001
NC
NC = NO CONNECT
Figure 1. 8-Lead SOIC_N (R-8)
ADA4891-1
OUT 1 –VS 2 +IN 3
4 5
+VS
–IN
Figure 2. 5-Lead SOT-23 (RJ-5)
APPLICATIONS
Imaging Consumer video Active filters Coaxial cable drivers Clock buffers Photodiode preamp Contact image sensor and buffers
OUT1
1
ADA4891-2
8 7 6 5
+VS OUT2 –IN2
08054-027
08054-074
–IN1 2 +IN1 3 –VS 4
+IN2
NC = NO CONNECT
Figure 3. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8)
ADA4891-3
PD1 1 PD2 2 PD3 3 +VS 4 +IN1 5 –IN1 6 OUT1 7
14 13 12 11 10 9 8
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 l...