THS7002CPWP Datasheet

IC型號：
THS7002CPWP
PDF描述：
70-MHz PROGRAMMABLE-GAIN AMPLIFIERS
文件大?。?/label>
597.30KB
PDF頁數(shù)：
32頁
芯片廠家：
TI

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THS7001, THS7002

70-MHz PROGRAMMABLE-GAIN AMPLIFIERS

SLOS214B 鈥?OCTOBER 1998 鈥?REVISED AUGUST 1999

Separate Low Noise Preamp and PGA

Stages

Shutdown Control

Preamp Features

鈥?Low Voltage Noise . . . 1.7 nV/鈭欻z

鈥?Accessible Output Pin for External

Filtering

鈥?Voltage Feedback, G

min

= 鈥?, 2

鈥?100 MHz Bandwidth (鈥? dB)

PGA Features

鈥?Digitally Programmable Gain

鈥?鈥?2 dB to 20 dB Gain/Attenuation Range

鈥?6 dB Step Resolution

鈥?Output Clamp Protection

鈥?70 MHz Bandwidth (鈥? dB)

鈥?175 V/碌s Slew Rate

Wide Supply Range

鹵4.5

V to

鹵16

PowerPAD鈩?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/鈭欻z voltage noise with a 100-MHz (鈥? 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 鈥?2-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 (鈥? 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

鹵4.5-V

鹵16-V

supply voltage range.

PREAMP

OUT PGA IN鈥?/div>

G0 G1 G2

PREAMP VCC+

PREAMP IN鈥?/div>

Preamp

PREAMP IN+

CLAMP+ (VH)

PGA OUT

PREAMP VCC鈥?/div>

CLAMP鈥?(VL)

SHDN

PGA REF

PGA

VCC+

PGA

VCC鈥?/div>

GND

Figure 1. THS7001 Block Diagram

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.

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 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.

漏

1999, Texas Instruments Incorporated

POST OFFICE BOX 655303

鈥?/div>

DALLAS, TEXAS 75265

標準包裝
50
類別
集成電路 (IC)
家庭
Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
系列
-
放大器類型
可編程增益
電路數(shù)
2
輸出類型
-
轉換速率
85 V/µs
增益帶寬積
70MHz
-3db帶寬
100MHz
電流 - 輸入偏壓
2.5µA
電壓 - 輸入偏移
1000µV
電流 - 電源
7mA
電流 - 輸出 / 通道
95mA
電壓 - 電源，單路/雙路(±)
9 V ~ 32 V，±4.5 V ~ 16 V
工作溫度
0°C ~ 70°C
安裝類型
表面貼裝
封裝/外殼
28-SOIC（0.173"，4.40mm 寬）裸露焊盤
供應商設備封裝
28-HTSSOP
包裝
管件
配用
296-10078-ND - EVAL MOD FOR THS7002
其它名稱
296-2412-5

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