AD8051ART-REEL Analog Devices Inc, AD8051ART-REEL Datasheet - Page 17
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AD8051ART-REEL
Manufacturer Part Number
AD8051ART-REEL
Description
IC OPAMP VF R-R LDIST LP SOT23-5
Manufacturer
Analog Devices Inc
Datasheet
1.AD8051ARTZ-REEL7.pdf
(24 pages)
Specifications of AD8051ART-REEL
Rohs Status
RoHS non-compliant
Amplifier Type
Voltage Feedback
Number Of Circuits
1
Output Type
Rail-to-Rail
Slew Rate
170 V/µs
-3db Bandwidth
110MHz
Current - Input Bias
1.4µA
Voltage - Input Offset
1800µV
Current - Supply
4.8mA
Current - Output / Channel
45mA
Voltage - Supply, Single/dual (±)
3 V ~ 12 V, ±1.5 V ~ 6 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Gain Bandwidth Product
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AD8051ART-REEL
Manufacturer:
AD
Quantity:
1 020
Company:
Part Number:
AD8051ART-REEL7
Manufacturer:
AD
Quantity:
5 321
Company:
Part Number:
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Manufacturer:
AD
Quantity:
194 700
Company:
Part Number:
AD8051ART-REEL7
Manufacturer:
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Quantity:
246 740
APPLICATION INFORMATION
OVERDRIVE RECOVERY
Overdrive of an amplifier occurs when the output and/or input
range is exceeded. The amplifier must recover from this over-
drive condition. As shown in Figure 41, the AD8051/AD8052/
AD8054 recover within 60 ns from negative overdrive and
within 45 ns from positive overdrive.
DRIVING CAPACITIVE LOADS
Consider the AD8051/AD8052 in a closed-loop gain of +1 with
+V
and Figure 43 show their frequency and time domain responses,
respectively, to a small-signal excitation. The capacitive load
drive of the AD8051/AD8052/AD8054 can be increased by
adding a low value resistor in series with the load. Figure 44
and Figure 45 show the effect of a series resistor on the capaci-
tive drive for varying voltage gains. As the closed-loop gain is
increased, the larger phase margin allows for larger capacitive
loads with less peaking. Adding a series resistor with lower
closed-loop gains accomplishes the same effect. For large
capacitive loads, the frequency response of the amplifier is
dominated by the roll-off of the series resistor and the load
capacitance.
Figure 42. AD8051/AD8052 Closed-Loop Frequency Response; C
S
= 5 V and a load of 2 kΩ in parallel with 50 pF. Figure 42
–10
–12
–2
–4
–6
–8
8
6
4
2
0
0.1
V
G = +1
R
C
V
S
OUT
L
L
= 5V
= 2kΩ
= 50pF
V/DIV AS SHOWN
= 200mV p-p
INPUT 1V/DIV
Figure 41. Overdrive Recovery
1
FREQUENCY (MHz)
OUTPUT 2V/DIV
10
100ns
100
V
G = +5
R
R
S
F
L
= ±5V
= 2kΩ
= 2kΩ
500
L
= 50 pF
Rev. J | Page 17 of 24
Figure 44. AD8051/AD8052 Capacitive Load Drive vs. Closed-Loop Gain
10000
1000
1000
Figure 45. AD8054 Capacitive Load Drive vs. Closed-Loop Gain
100
2.60
2.55
2.50
2.45
2.40
Figure 43. AD8051/AD8052 200 mV Step Response; C
100
10
10
1
1
1
V
≤ 30%
OVERSHOOT
V
≤ 30%
OVERSHOOT
S
S
= 5V
= 5V
50mV
2
2
R
S
100mV
100mV
AD8051/AD8052/AD8054
STEP
= 10Ω
STEP
V
V
IN
3
IN
3
A
A
CL
R
CL
S
50Ω
R
50Ω
(V/V)
R
= 3Ω
G
(V/V)
G
R
4
S
4
R
= 0Ω
R
F
R
F
S
= 0Ω
R
100ns
R
S
S
V
G = +1
R
C
5
S
L
L
5
= 5V
= 2kΩ
= 50pF
C
C
L
L
L
= 50 pF
V
V
OUT
OUT
6
6