a
FEATURES
Quad High-Speed Current Feedback Amplifier
with Disable
–3 dB Bandwidth 350 MHz @ G = +1
Slew Rate 2400 V/s, VS = 12 V
Drives High Capacitive Loads
Settling Time to 0.1% in 35 ns; 300 pF Load, 6 V Step
Settling Time to 0.1% in 18 ns; 5 pF Load, 2 V Step
Low Power
Operates on +5 V to 12 V (24 V)
4 mA/Amplifier Supply Current
Excellent Video Specs (RL = 150 , G = +2)
Gain Flatness 0.1 dB to 70 MHz
0.04% Differential Gain
0.09 Differential Phase
Crosstalk –58 dB @ 5 MHz
THD –72 dBc @ 5 MHz
Outstanding DC Accuracy
VOFFSET is 2 mV (Typ)
IBIAS is 3 A (Max)
16-Lead SOIC Package
APPLICATIONS
LCD Column Drivers
High-Performance Test Equipment
Video Line Driver
ATE
Quad 350 MHz
24 V Amplifier
AD8024
FUNCTIONAL BLOCK DIAGRAM
16
OUT D
2
15
–IN D
+IN A 3
14
+IN D
VCC 4
13
VEE
12
DGND
+IN B 6
11
+IN C
7
10
–IN C
OUT B 8
9
OUT C
OUT A 1
–IN A
DIS 5
–IN B
1V
AD8024AR
20ns
VIN
PRODUCT DESCRIPTION
The AD8024 is a low settling time, high-speed, high output
voltage quad current feedback operational amplifier. Manufactured on ADI’s proprietary XFHV high-speed bipolar process,
the AD8024 is capable of driving to within 1.3 V of its 24 V
supply rail. Each amplifier has high-output current capability
and can drive high capacitive loads.
The AD8024 outputs settle to 0.1% within 35 ns into a 300 pF
load (6 V swing). The AD8024 can run on both 5 V as well as
± 12 V rails. Slew rate on ± 12 V supplies is 2400 V/µs. DC
Characteristics are outstanding with typical 2 mV offset, and
3 µA maximum input bias current. High-speed disable pin
allows the AD8024 to be shut down when not in use. Low-power
operation is assured with the 4 mA/Amplifier supply current draw.
VOUT
2V
Figure 1. Pulse Response Driving a Large Load Capacitance, C L = 300 pF, G = +3, RFB = 2.32 kΩ, RS = 10.5 Ω,
RL = 1 kΩ, VS = ± 7.5 V
The high voltage drive capability, low settling time, high slew
rate, low offset, and high bandwidth make the AD8024 ideally
suited as an LCD column driver, a video line driver, and for
use in high-performance test equipment.
The AD8024 is available in a 16-lead SOIC package.
REV. C
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
AD8024–SPECIFICATIONS (@ T = 25C, V = 7.5 V, C
A
Model
DYNAMIC PERFORMANCE
Bandwidth (3 dB)
Bandwidth (0.1 dB)
Slew Rate
Settling Time to 0.1%
NOISE/HARMONIC PERFORMANCE
Total Harmonic Distortion
Input Voltage Noise
Input Current Noise
Differential Gain (RL = 150 Ω)
Differential Phase (RL = 150 Ω)
DC PERFORMANCE
Input Offset Voltage
Offset Drift
+Input Bias Current
–Input Bias Current
Open-Loop Transresistance
S
Conditions
LOAD
= 10 pF, RL = 150 , unless otherwise noted.)
Min
Typ
RFB = 800 Ω, No Peaking, G = +3
160
No Peaking, G = +3
370
6 V Step, G = +3, CLOAD = 300 pF
TA = 25°C to 85°C, ± 3 V (6 V Step)
CLOAD = 300 pF, RS = 10.5 Ω, RLOAD > 1 kΩ,
RFB = 2.32 kΩ
± 1 V (2 V Step), CLOAD = 5 pF,
RS = 0 Ω, RLOAD > 1 kΩ, RFB = 750 kΩ
200
25
390
30
MHz
MHz
V/µs
ns
18
ns
fC = 5 MHz, RL = 1 kΩ
fC = 5 MHz, RL = 150 Ω
f = 10 kHz
f = 10 kHz (–IIN)
f = 3.58 MHz, G = +2
f = 3.58 MHz, G = +2
–72
–67
3
8
0.04
0.09
dBc
dBc
nV/√Hz
pA/√Hz
%
Degrees
TMIN to TMAX
2
1.5
1
1
1.2
0.840
0.850
TMIN to TMAX
INPUT CHARACTERISTICS
Input Resistance
+Input
–Input
Input Capacitance
Input Common-Mode Voltage
Common-Mode Rejection Ratio
Input Offset Voltage
–Input Current
+Input Current
OUTPUT CHARACTERISTICS
Output Voltage Swing
RL = 1 kΩ
RL = 150 Ω
Linear Output Current
Max Dynamic Output Current
Capacitive Load Drive
MATCHING CHARACTERISTICS
Dynamic
Crosstalk (Worst Between Any 2)
DC
Input Offset Voltage Match
Input Current Match
POWER SUPPLY
Operating Range
TMIN to TMAX
TMIN to TMAX
5
7.5
3
1
135
2
–VS + 1.2
62
VOL – VEE
VCC – VOH
VOL – VEE
VCC – VOH
Error