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THS3121 Datasheet

  • THS3121

  • LOW-NOISE, HIGH-OUTPUT DRIVE, CURRENT-FEEDBACK, OPERATIONAL ...

  • 28頁(yè)

  • TI

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THS3120, THS3121
www.ti.com
SLOS420A 鈥?SEPTEMBER 2003 鈥?REVISED NOVEMBER 2003
LOW-NOISE, HIGH-OUTPUT DRIVE, CURRENT-FEEDBACK,
OPERATIONAL AMPLIFIERS
FEATURES
鈥?/div>
Low Noise
鈥?1 pA/鈭欻z Noninverting Current Noise
鈥?10 pA/鈭欻z Inverting Current Noise
鈥?2.5 nV/鈭欻z Voltage Noise
High Output Current Drive: 475 mA
High Slew Rate: 1700 V/碌s (R
L
= 50
鈩?
V
O
= 8 V
PP
)
Wide Bandwidth: 120 MHz (G = 2, R
L
= 50
鈩?
Wide Supply Range:
鹵5
V to
鹵15
V
Power-Down Feature: (THS3120 Only)
DESCRIPTION
The THS3120 and THS3121 are low-noise,
high-voltage, high output current drive, current-
feedback amplifiers designed to operate over a wide
supply range of
鹵5
V to
鹵15
V for today's high
performance applications.
The THS3120 offers a power saving mode by provid-
ing a power-down pin for reducing the 7-mA quiesc-
ent current of the device, when the device is not
active.
These
amplifiers
provide
well-regulated
ac
performance characteristics. Most notably, the 0.1-dB
flat bandwidth is exceedingly high, reaching beyond
90 MHz. The unity gain bandwidth of 130 MHz allows
for good distortion characteristics at 10 MHz. Coupled
with high 1700-V/碌s slew rate, the THS3120 and
THS3121 amplifiers allow for high output voltage
swings at high frequencies.
The THS3120 and THS3121 are offered in a 8-pin
SOIC (D), and the 8-pin MSOP (DGN) packages with
PowerPAD鈩?
DIFFERENTIAL PHASE
vs
NUMBER OF LOADS
0.14
Gain = 2,
R
F
= 649
鈩?
0.12 V
S
=
鹵15
V,
40 IRE 鈭?NTSC and PAL,
Worst Case
鹵100
IRE Ramp
0.1
0.08
0.06
0.04
0.02
PAL
NTSC
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
APPLICATIONS
Video Distribution
Power FET Driver
Pin Driver
Capacitive Load Driver
DIFFERENTIAL GAIN
vs
NUMBER OF LOADS
0.07
0.06
Differential Gain 鈭?%
0.05
0.04
0.03
0.02
0.01
0
0
1
2
3
4
5
6
7
8
Number of 150
鈩?/div>
Loads
Gain = 2,
R
F
= 649
鈩?
V
S
=
鹵15
V,
40 IRE 鈭?NTSC and PAL,
Worst Case
鹵100
IRE Ramp
VIDEO DISTRIBUTION AMPLIFIER APPLICATION
649
鈩?/div>
649
鈩?/div>
15 V
V
I
75
鈩?/div>
鈭?/div>
+
鈭?5 V
n Lines
75
鈩?/div>
75-鈩?Transmission Line
75
鈩?/div>
75
鈩?/div>
V
O(n)
V
O(1)
PAL
NTSC
Differential Phase 鈭?deg
0
0
1
2
3
4
5
6
7
8
Number of 150
鈩?/div>
Loads
75
鈩?/div>
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2003, Texas Instruments Incorporated

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  • 英文版
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    LOW-NOISE, HIGH-VOLTAGE, CURRENT-FEEDBACK, OPERATIONAL AMPLI...
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  • 英文版
    LOW-NOISE, HIGH-VOLTAGE, CURRENT-FEEDBACK, OPERATIONAL AMPLI...
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    LOW-NOISE, HIGH-VOLTAGE, CURRENT-FEEDBACK, OPERATIONAL AMPLI...
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