
High Speed, Rail-to-Rail Output
Op Amps with Ultralow Power-Down
Data Sheet
Rev. C
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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/s 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
PIN CONFIGURATIONS
Figure 1. 8-Lead, 3 mm × 3 mm LFCSP
Figure 2. 16-Lead, 3 mm × 3 mm LFCSP
GENERAL DESCRIPTION
The ADA4850-1/ADA4850-2 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/s 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.
Figure 3. Small Signal Frequency Response
1
POWER DOWN
2
NC
3
–IN
4
+IN
7 OUTPUT
8 +VS
6 NC
5 –VS
ADA4850-1
05320-
106
NOTES
1. EXPOSED PAD CAN BE CONNECTED TO GND,
OR LEFT FLOATING.
2. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
1
VOUT1
2
–IN1
3
+IN1
4
–VS
11 VOUT2
12 +VS
10 –IN2
9
+IN2
5
NC
6
NC
7
NC
8
NC
15
NC
16
NC
14
P
D1
13
P
D2
ADA4850-2
05320-
043
NOTES
1. EXPOSED PAD CAN BE CONNECTED TO GND,
OR LEFT FLOATING.
2. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
CLOSED-LOOP
GAIN
(dB)
1
100
10
1000
05320-054
FREQUENCY (MHz)
–6
–4
–5
–2
–3
0
–1
2
1
G = +1
VS = 5V
RL = 1k
VOUT = 0.1V p-p