THS3110, THS3111
www.ti.com
SLOS422A–SEPTEMBER 2003–REVISED NOVEMBER 2003
LOW-NOISE, HIGH-VOLTAGE, CURRENT-FEEDBACK,
OPERATIONAL AMPLIFIERS
FEATURES
DESCRIPTION
•
Low Noise
The THS3110 and THS3111 are low-noise,
high-voltage, current-feedback amplifiers designed to
operate over a wide supply range of ±5 V to ±15 V for
today's high performance applications.
– 2 pA/√Hz Noninverting Current Noise
– 10 pA/√Hz Inverting Current Noise
– 3 nV/√Hz Voltage Noise
The THS3110 features a power-down pin (PD) that
puts the amplifier in low power standby mode, and
lowers the quiescent current from 4.8 mA to 270 µA.
•
•
High Output Current Drive: 260 mA
High Slew Rate: 1300 V/µs (RL = 100 Ω,
VO = 8 VPP
)
These
amplifiers
provide
well-regulated
The unity
ac
gain
•
•
•
Wide Bandwidth: 90 MHz (G = 2, RL = 100 Ω)
Wide Supply Range: ±5 V to ±15 V
performance characteristics.
bandwidth of 100 MHz allows for good distortion
characteristics below 10 MHz. Coupled with high
1300-V/µs slew rate, the THS3110 and THS3111
amplifiers allow for high output voltage swings at high
frequencies.
Power-Down Feature: (THS3110 Only)
APPLICATIONS
•
•
•
•
Video Distribution
Power FET Driver
Pin Driver
The THS3110 and THS3111 are offered in a 8-pin
SOIC (D), and the 8-pin MSOP (DGN) packages with
PowerPAD™.
Capacitive Load Driver
DIFFERENTIAL PHASE
DIFFERENTIAL GAIN
vs
vs
NUMBER OF LOADS
NUMBER OF LOADS
0.3
0.4
0.35
0.3
VIDEO DISTRIBUTION AMPLIFIER APPLICATION
Gain = 2,
= 1 kΩ,
= ±15 V,
40 IRE − NTSC and PAL,
Gain = 2,
R
V
= 1 kΩ,
R
F
S
F
= ±15 V,
1 kΩ
1 kΩ
0.25
0.2
0.15
0.1
0.05
0
V
S
40 IRE − NTSC and PAL,
Worst Case ±100 IRE Ramp
Worst Case ±100 IRE Ramp
15 V
75-Ω Transmission Line
75 Ω
V
O(1)
0.25
0.2
−
+
PAL
PAL
V
I
NTSC
−15 V
75 Ω
0.15
0.1
NTSC
n Lines
75 Ω
V
O(n)
75 Ω
0.05
0
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
75 Ω
Number of 150 Ω Loads
Number of 150 Ω Loads
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 © 2003, Texas Instruments Incorporated