ADA4850-1_07 Datasheet, PDF (1/16 Pages) Analog Devices – High Speed, Rail-to-Rail Output Op Amps with Ultralow Power-Down

High Speed, Rail-to-Rail Output
Op Amps with Ultralow Power-Down
ADA4850-1/ADA4850-2
FEATURES
Ultralow power-down current: 150 nA/amplifier maximum
Low quiescent current: 2.4 mA/amplifier
High speed
175 MHz, −3 dB bandwidth
220 V/μs slew rate
85 ns settling time to 0.1%
Excellent video specifications
0.1 dB flatness: 14 MHz
Differential gain: 0.12%
Differential phase: 0.09°
Single-supply operation: 2.7 V to 6 V
Rail-to-rail output
Output swings to within 80 mV of either rail
Low voltage offset: 0.6 mV
APPLICATIONS
Portable multimedia players
Video cameras
Digital still cameras
Consumer video
Clock buffers
GENERAL DESCRIPTION
The ADA4850-1/ADA4850-2¹ are low price, high speed, voltage
feedbacks rail-to-rail output op amps with ultralow power-
down. Despite their low price, the ADA4850-1/ADA4850-2
provide excellent overall performance and versatility. The
175 MHz, −3 dB bandwidth and 220 V/μs slew rate make these
amplifiers well-suited for many general-purpose, high speed
applications.
The ADA4850-1/ADA4850-2 are designed to operate at supply
voltages as low as 2.7 V and up to 6 V at 2.4 mA of supply
current per amplifier. In power-down mode, the supply current
is less than 150 nA, ideal for battery-powered applications.
The ADA4850 family provides users with a true single-supply
capability, allowing input signals to extend 200 mV below the
negative rail and to within 2.2 V of the positive rail. The output
of the amplifier can swing within 80 mV of either supply rail.
With its combination of low price, excellent differential gain
(0.12%), differential phase (0.09°), and 0.1 dB flatness out to
14 MHz, these amplifiers are ideal for video applications.
The ADA4850-1/ADA4850-2 are designed to work in the
extended temperature range of −40°C to +125°C.
PIN CONFIGURATIONS
POWER DOWN 1
NC 2
–IN 3
+IN 4
ADA4850-1
8 +V_S
7 OUTPUT
6 NC
5 –V_S
NC = NO CONNECT
Figure 1. 8-Lead, 3 mm × 3 mm LFCSP
V_OUT1 1
–IN1 2
+IN1 3
–V_S 4
ADA4850-2
12 +V_S
11 V_OUT2
10 –IN2
9 +IN2
NC = NO CONNECT
Figure 2. 16-Lead, 3 mm × 3 mm LFCSP
2
1
0
–1
–2
–3
–4
G = +1
–5
V_S = 5V
R_L = 1kΩ
V_OUT = 0.1V p-p
–6
1
10
100
FREQUENCY (MHz)
Figure 3. Small Signal Frequency Response
1 _{Patents pending.}
1000
Rev. B
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