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| 型號(hào)： | THS7002IPWP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO28 |
| 封裝： | GREEN, PLASTIC, HTSSOP-28 |
| 文件頁(yè)數(shù)： | 1/41頁(yè) |
| 文件大小： | 1203K |
| 代理商： | THS7002IPWP |
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THS7001, THS7002
70MHz PROGRAMMABLEGAIN AMPLIFIERS
SLOS214C OCTOBER 1998 REVISED MARCH 2007
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Separate Low Noise Preamp and PGA
Stages
D Shutdown Control
D Preamp Features
Low Voltage Noise . . . 1.7 nV/
√Hz
Accessible Output Pin for External
Filtering
Voltage Feedback, Gmin = 1, 2
100 MHz Bandwidth (3 dB)
D PGA Features
Digitally Programmable Gain
22 dB to 20 dB Gain/Attenuation Range
6 dB Step Resolution
Output Clamp Protection
70 MHz Bandwidth (3 dB)
175 V/
s Slew Rate
D Wide Supply Range ±4.5 V to ±16 V
D PowerPAD Package for Enhanced
Thermal Performance
description
The THS7001 (single) and THS7002 (dual) are high-speed programmable-gain amplifiers, ideal for applications
where load impedance can often vary. Each channel on this device consists of a separate low-noise input
preamp and a programmable gain amplifier (PGA). The preamp is a voltage-feedback amplifier offering a low
1.7-nV/
√Hz voltage noise with a 100-MHz (3 dB) bandwidth. The output pin of the preamp is accessible so that
filters can be easily added to the amplifier.
The 3-bit digitally-controlled PGA provides a 22-dB to 20-dB attenuation/gain range with a 6-dB step
resolution. In addition, the PGA provides both high and low output clamp protection to prevent the output signal
from swinging outside the common-mode input range of an analog-to-digital converter. The PGA provides a
wide 70-MHz (3 dB) bandwidth, which remains relatively constant over the entire gain/attenuation range.
Independent shutdown control is also provided for power conservation and multiplexing. These devices operate
over a wide
±4.5-V to ±16-V supply voltage range.
_
+
PREAMP VCC+
PREAMP IN+
PREAMP IN
PREAMP VCC
Preamp
PREAMP
OUT
PGA IN
G2
G1
G0
PGA REF
SHDN
PGA
VCC+
GND
PGA
VCC
CLAMP+ (VH)
CLAMP (VL)
PGA OUT
_
+
Figure 1. THS7001 Block Diagram
Copyright
1999, Texas Instruments Incorporated
PRODUCTION DATA information is 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.
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.
CAUTION: The THS7001 and THS7002 provides ESD protection circuitry. However, permanent damage can still occur if this
device is subjected to high-energy electrostatic discharges. Proper ESD precautions are recommended to avoid any performance
degradation or loss of functionality.
PowerPAD is a trademark of Texas Instruments Incorporated.
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| THS7002IPWPG4 | 功能描述:特殊用途放大器 70-MHz Hi-Spd Dual Prgrmbl-Gain Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| THS7002IPWPR | 功能描述:運(yùn)算放大器 - 運(yùn)放 70-MHz Programmable- Gain Dual RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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