DGN-8
DGK-8
D-8
DRB-8
www.ti.com
THS4271
THS4275
SLOS397E 鈭?JULY 2002 鈭?REVISED JANUARY 2004
LOW NOISE, HIGH SLEW RATE, UNITY GAIN STABLE VOLTAGE
FEEDBACK AMPLIFIER
FEATURES
D
Unity Gain Stability
D
Low Voltage Noise
D
D
D
D
D
D
鈭?3 nV/鈭欻z
High Slew Rate: 1000 V/碌s
Low Distortion
鈭?鈭?2 dBc THD at 30 MHz
Wide Bandwidth: 1.4 GHz
Supply Voltages
鈭?+5 V,
鹵5
V, +12 V, +15 V
Power Down Functionality (THS4275)
Evaluation Module Available
APPLICATIONS
D
D
D
D
D
High Linearity ADC Preamplifier
Wireless Communication Receivers
Differential to Single-Ended Conversion
DAC Output Buffer
Active Filtering
THS4271
DESCRIPTION
The THS4271 and THS4275 are low-noise, high slew rate,
unity gain stable voltage feedback amplifiers designed to
run from supply voltages as low as 5 V and as high as 15 V.
The THS4275 offers the same performance as the
THS4271 with the addition of power down capability. The
combination of low-noise, high slew rate, wide bandwidth,
low distortion, and unity gain stability make the THS4271
and THS4275 high performance devices across multiple
ac specifications.
Designers using the THS4271 are rewarded with higher
dynamic range over a wider frequency band without the
stability concerns of decompensated amplifiers. The
devices are available in SOIC, MSOP with PowerPAD錚?
and leadless MSOP with PowerPAD錚?packages.
NC
IN鈭?/div>
IN+
V
S鈭?/div>
1
2
3
4
8
7
6
5
NC
V
S
+
V
OUT
NC
RELATED DEVICES
DEVICE
THS4211
THS4503
THS3202
DESCRIPTION
1-GHz voltage feedback amplifier
Wideband fully differential amplifier
Dual, wideband current feedback amplifier
Harmonic and Intermodulation Distortion 鈭?dB
HARMONIC AND INTERMODULATION
DISTORTION
vs
FREQUENCY
鈭?0
鈭?0
鈭?0
鈭?0
鈭?0
鈭?0
鈭?00
1
10
f 鈭?Frequency 鈭?MHz
100
Gain = 2
Rf = 249
鈩?/div>
RL = 150
鈩?/div>
VO = 2 VPP
VS =
鹵5
V
IMD3
200 kHz Tone Spacing
VO = 2 VPP Envelope
HD2
HD3
Low-Noise, Low-Distortion, Wideband Application Circuit
50
鈩?/div>
Source
50
鈩?/div>
+
VI
49.9
鈩?/div>
THS4271
_
VO
+5 V
鈭? V
249
鈩?/div>
249
鈩?/div>
NOTE: Power supply decoupling capacitors not shown
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.
This document contains information on products in more than one phase of
development. The status of each device is indicated on the page(s) specifying its
electrical characteristics.
Copyright
錚?/div>
2002 鈭?2004, Texas Instruments Incorporated
next
THS4271DGKRG4 產(chǎn)品屬性
2,500
集成電路 (IC)
Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
-
電壓反饋
1
-
1000 V/µs
400MHz
1.4GHz
6µA
5000µV
22mA
160mA
5 V ~ 15 V,±2.5 V ~ 7.5 V
-40°C ~ 85°C
表面貼裝
8-TSSOP,8-MSOP(0.118",3.00mm 寬)
8-MSOP
帶卷 (TR)
296-20554-ND - EVAL MOD W/UNITY GAIN THS4271296-20553-ND - EVAL MOD FOR THS4271
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