THS3091DG4 Datasheet, PDF (1/36 Pages) Texas Instruments – HIGH-VOLTAGE, LOW-DISTORTION, CURRENT-FEEDBACK OPERATIONAL AMPLIFIERS

THS3091
THS3095
www.ti.com........................................................................................................................................ SLOS423G – SEPTEMBER 2003 – REVISED OCTOBER 2008
HIGH-VOLTAGE, LOW-DISTORTION, CURRENT-FEEDBACK
OPERATIONAL AMPLIFIERS
FEATURES
1
•2 Low Distortion
– 77 dBc HD2 at 10 MHz, R_L = 1 kΩ
– 69 dBc HD3 at 10 MHz, R_L = 1 kΩ
• Low Noise
– 14 pA/√Hz Noninverting Current Noise
– 17 pA/√Hz Inverting Current Noise
– 2 nV/√Hz Voltage Noise
• High Slew Rate: 7300 V/µs (G = 5, V_O = 20 V_PP)
• Wide Bandwidth: 210 MHz (G = 2, R_L = 100 Ω)
• High Output Current Drive: ±250 mA
• Wide Supply Range: ±5 V to ±15 V
• Power-Down Feature: (THS3095 Only)
APPLICATIONS
• High-Voltage Arbitrary Waveform
• Power FET Driver
• Pin Driver
• VDSL Line Driver
DESCRIPTION
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.
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.
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.
The THS3091 and THS3095 are offered in an 8-pin
SOIC (D), and the 8-pin SOIC (DDA) packages with
PowerPAD™.
TOTAL HARMONIC DISTORTION
vs
FREQUENCY
−20
G = 5,
−30 ^{RF = 1 kΩ,}
R_L = 100 Ω,
−40 ^{VS = ±15 V}
V_O = 20 V_PP
−50
V_O = 10 V_PP
−60
−70
V_O = 5 V_PP
−80
−90
100 k
V_O = 2 V_PP
1M
10 M
f − Frequency − Hz
100 M
IOUT1
DAC5686
IOUT2
TYPICAL ARBITRARY WAVEFORM
GENERATOR OUTPUT DRIVE CIRCUIT
−
+ _THS4271
−
+ _THS3091
−
+ _THS3091
V_OUT
−
+ _THS3091
1
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.
2
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2008, Texas Instruments Incorporated