THS3091
THS3095
www.ti.com
SLOS423C–SEPTEMBER 2003–REVISED AUGUST 2004
HIGH-VOLTAGE, LOW-DISTORTION, CURRENT-FEEDBACK
OPERATIONAL AMPLIFIERS
FEATURES
DESCRIPTION
•
Low Distortion
The THS3091 and THS3095 are high-voltage,
low-distortion, high-speed, current-feedback
amplifiers designed to operate over a wide supply
range of ±5 V to ±15 V for applications requiring
large, linear output signals such as Pin, Power FET,
and VDSL line drivers.
– 77 dBc HD2 at 10 MHz, RL = 1 kΩ
– 69 dBc HD3 at 10 MHz, RL = 1 kΩ
Low Noise
•
– 14 pA/√Hz Noninverting Current Noise
– 17 pA/√Hz Inverting Current Noise
– 2 nV/√Hz Voltage Noise
The THS3095 features a power-down pin (PD) that
puts the amplifier in low power standby mode, and
lowers the quiescent current from 9.5 mA to 500 µA.
•
•
•
•
•
High Slew Rate: 7300 V/µs (G = 5, VO = 20 VPP
Wide Bandwidth: 210 MHz (G = 2, RL = 100 Ω)
High Output Current Drive: ±250 mA
Wide Supply Range: ±5 V to ±15 V
Power-Down Feature: (THS3095 Only)
)
The wide supply range combined with total harmonic
distortion as low as -69 dBc at 10 MHz, in addition, to
the high slew rate of 7300 V/µs makes the
THS3091/5 ideally suited for high-voltage arbitrary
waveform driver applications. Moreover, having the
ability to handle large voltage swings driving into
high-resistance and high-capacitance loads while
maintaining good settling time performance makes
the devices ideal for Pin driver and PowerFET driver
applications.
APPLICATIONS
•
•
•
•
High-Voltage Arbitrary Waveform
Power FET Driver
Pin Driver
VDSL Line Driver
The THS3091 and THS3095 are offered in an 8-pin
SOIC (D), and the 8-pin SOIC (DDA) packages with
PowerPAD™.
TYPICAL ARBITARY WAVEFORM
GENERATOR OUTPUT DRIVE CIRCUIT
TOTAL HARMONIC DISTORTION
vs
FREQUENCY
−20
G = 5,
V
= 20 V
PP
O
R
R
= 1 kΩ,
= 100 Ω,
= ±15 V
F
L
−30
−40
−
+
THS3091
V
S
V
= 10 V
PP
O
−50
−60
−70
V
OUT
−
+
IOUT1
DAC5686
IOUT2
−
+
THS3091
V
= 5 V
PP
O
THS4271
−80
−90
V
= 2 V
PP
O
100 k
1 M
10 M
100 M
−
+
f − Frequency − Hz
THS3091
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.
UNLESS OTHERWISE NOTED this document contains PRO-
DUCTION DATA information current as of publication date. Prod-
ucts conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily
include testing of all parameters.
Copyright © 2003–2004, Texas Instruments Incorporated