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ADA4860-1 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADA4860-1
Beschreibung Op Amp
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 20 Seiten
ADA4860-1 Datasheet, Funktion
www.DataSheet4U.com
FEATURES
High speed
800 MHz, −3 dB bandwidth
790 V/μs slew rate
8 ns settling time to 0.5%
Wide supply range: 5 V to 12 V
Low power: 6 mA
0.1 dB flatness: 125 MHz
Differential gain: 0.02%
Differential phase: 0.02°
Low voltage offset: 3.5 mV (typ)
High output current: 25 mA
Power down
APPLICATIONS
Consumer video
Professional video
Broadband video
ADC buffers
Active filters
GENERAL DESCRIPTION
The ADA4860-1 is a low cost, high speed, current feedback op
amp that provides excellent overall performance. The 800 MHz,
−3 dB bandwidth, and 790 V/μs slew rate make this amplifier
well suited for many high speed applications. With its combination
of low price, excellent differential gain (0.02%), differential
phase (0.02°), and 0.1 dB flatness out to 125 MHz, this amplifier
is ideal for both consumer and professional video applications.
The ADA4860-1 is designed to operate on supply voltages as
low as +5 V and up to ±5 V using only 6 mA of supply current.
To further reduce power consumption, the amplifier is
equipped with a power-down feature that lowers the supply
current to 0.25 mA.
The ADA4860-1 is available in a 6-lead SOT-23 package and
is designed to work over the extended temperature range of
−40°C to +105°C.
High Speed, Low Cost,
Op Amp
ADA4860-1
PIN CONFIGURATION
VOUT 1
6 +VS
–VS 2
+–
5 POWER DOWN
+IN 3
4 –IN
Figure 1. 6-Lead SOT-23 (RJ-6)
6.3
G = +2
6.2 VOUT = 2V p-p
RF = RG = 499
6.1
6.0
5.9
5.8 VS = +5V
5.7
5.6
5.5
5.4
5.3
0.1
1 10
FREQUENCY (MHz)
Figure 2. 0.1 dB Flatness
100
VS = ±5V
1000
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.






ADA4860-1 Datasheet, Funktion
ADA4860-1
TYPICAL PERFORMANCE CHARACTERISTICS
RL = 150 Ω and CL = 4 pF, unless otherwise noted.
2 VS = ±5V
1 VOUT = 0.2V p-p
G = +1, RF = 550
0
–1 G = +2, RF = RG = 499
–2 G = –1, RF = RG = 499
–3
–4
–5
–6
0.1
G = +5, RF = 348, RG = 86.6
G = +10, RF = 348, RG = 38.3
1 10 100
FREQUENCY (MHz)
1000
Figure 4. Small Signal Frequency Response for Various Gains
2 VS = ±5V
1 VOUT = 2V p-p
0
G = –1, RF = RG = 499
–1 G = +5, RF = 348, RG = 86.6
–2 G = +2, RF = RG = 499
–3
G = +10, RF = 348, RG = 38.3
–4
G = +1, RF = 550
–5
–6
0.1
1 10 100
FREQUENCY (MHz)
1000
Figure 5. Large Signal Frequency Response for Various Gains
6.3
G = +2
6.2 VOUT = 2V p-p
RF = RG = 499
6.1
6.0
5.9
5.8
5.7
5.6
5.5
5.4
5.3
0.1
1
VS = +5V
VS = ±5V
10
FREQUENCY (MHz)
100
1000
Figure 6. Large Signal 0.1 dB Flatness
2 VS = 5V
1 VOUT = 0.2V p-p
G = +1, RF = 550
0
–1 G = +2, RF = RG = 499
–2
G = –1, RF = RG = 499
–3
–4
–5
–6
0.1
G = +5, RF = 348, RG = 86.6
G = +10, RF = 348, RG = 38.3
1 10 100
FREQUENCY (MHz)
1000
Figure 7. Small Signal Frequency Response for Various Gains
2
VS = 5V
1 VOUT = 2V p-p
G = –1, RF = RG = 499
0
–1 G = +5, RF = 348, RG = 86.6
G = +2, RF = RG = 499
–2 G = +10, RF = 348, RG = 38.3
–3
G = +1, RF = 550
–4
–5
–6
0.1
1 10 100
FREQUENCY (MHz)
1000
Figure 8. Large Signal Frequency Response for Various Gains
7
6
5 VOUT = 4V p-p
4 VOUT = 2V p-p
3 VOUT = 1V p-p
2
1 VS = ±5V
G = +2
0 RF = RG = 499
0.1 1
10
FREQUENCY (MHz)
100
1000
Figure 9. Large Signal Frequency Response for Various Output Levels
Rev. 0 | Page 6 of 20

6 Page









ADA4860-1 pdf, datenblatt
ADA4860-1
30
VS = ±5V, +5V
25
20
15
10
5
0
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
Figure 40. Input Voltage Noise vs. Frequency
0
VS = ±5V
G = +2
–10
–20
–30
–PSR
–40
+PSR
–50
–60
–70
0.1
1 10 100
FREQUENCY (MHz)
Figure 41. Power Supply Rejection vs. Frequency
1000
6
5
INPUT VOLTAGE × 2
VS = ±5V
G = +2
4
RF = RG = 499
f = 1MHz
3
2
OUTPUT
VOLTAGE
1
0
–1
–2
–3
–4
–5
–6
0 100 200 300 400 500 600 700 800 900 1000
TIME (ns)
Figure 42. Output Overdrive Recovery
110
100
90
80
70
60
50
40
30
20
10
0
10
VS = ±5V, +5V
NONINVERTING INPUT
INVERTING INPUT
100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
Figure 43. Input Current Noise vs. Frequency
0
VS = ±5V
VOUT = 200mV rms
–10 RF = 560
–20
–30
–40
–50
–60
–70
0.1
1 10 100
FREQUENCY (MHz)
1000
Figure 44. Common-Mode Rejection vs. Frequency
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
0
INPUT VOLTAGE × 2
VS = 5V
G = +2
RF = RG = 499
f = 1MHz
OUTPUT
VOLTAGE
100 200 300 400 500 600 700 800 900 1000
TIME (ns)
Figure 45. Output Overdrive Recovery
Rev. 0 | Page 12 of 20

12 Page





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