參數(shù)資料
型號： THS7002EVM
廠商： Texas Instruments, Inc.
英文描述： 70-MHz PROGRAMMABLE-GAIN AMPLIFIERS
中文描述： 70 - MHz的可編程增益放大器
文件頁數(shù)： 3/32頁
文件大?。?/td> 597K
代理商： THS7002EVM
THS7001, THS7002
70-MHz PROGRAMMABLE-GAIN AMPLIFIERS
SLOS214B – OCTOBER 1998 – REVISED AUGUST 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
block diagram
_
+
PREAMP VCC+
PREAMP A IN+
PREAMP A IN–
SHDN–A
SHDN–B
Preamp
PREAMP
OUT A
PGA–A
IN–
G2A
G1A
G0A
PGA–A REF
PGA
VCC+
PGA–B
GND
PGA
VCC–
CLAMP+ (VH)
CLAMP– (VL)
PGA–A OUT
_
+
_
PREAMP VCC–
PREAMP B IN–
PREAMP B IN+
Preamp
PREAMP
OUT B
PGA–B REF
PGA–B OUT
+
G2B
G1B
G0B
PGA–A
GND
_
+
PGA–B
IN–
Figure 2. THS7002 Dual Channel PGA
input preamp
To achieve the minimum input equivalent noise required for very small input signals, the input preamp is
configured as a classic voltage feedback amplifier with a minimum gain of 2 or –1. The output of the preamp
is accessible, allowing for adjustment of gain using external resistors and for external filtering between the
preamp and the PGA.
programmable gain amplifier (PGA)
The PGA is an inverting, programmable gain amplifier. The gain is digitally programmable using three control
bits (TTL-compatible terminals) that are encoded to provide eight distinct levels of gain/attenuation. Nominal
gain/attenuation is shown in Table 1.
Table 1. Nominal Gain/Attenuation
G2
G1
G0
PGA GAIN
(dB)
PGA GAIN
(V/V)
0
0
0
–22
0.08
0
0
1
–16
0.16
0
1
0
–10
0.32
0
1
1
–4
0.63
1
0
0
2
1.26
1
0
1
8
2.52
1
1
0
14
5.01
1
1
1
20
10.0
相關(guān)PDF資料
PDF描述
THS7002PWP 70-MHz PROGRAMMABLE-GAIN AMPLIFIERS
THS8133ATQFP TRIPLE 10-BIT, 80 MSPS VIDEO D/A CONVERTER WITH TRI-LEVEL SYNC GENERATION
THS8133TQFP TRIPLE 10-BIT, 80 MSPS VIDEO D/A CONVERTER WITH TRI-LEVEL SYNC GENERATION
THS8134ATQFP TRIPLE 8-BIT, 80 MSPS VIDEO D/A CONVERTER WITH TRI-LEVEL SYNC GENERATION
THS8134BTQFP TRIPLE 8-BIT, 80 MSPS VIDEO D/A CONVERTER WITH TRI-LEVEL SYNC GENERATION
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS7002IPWP 功能描述:特殊用途放大器 70-MHz Programmable- Gain Dual RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補償電壓: 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
THS7002IPWPR 功能描述:運算放大器 - 運放 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
THS7002PWP 制造商:TI 制造商全稱:Texas Instruments 功能描述:70-MHz PROGRAMMABLE-GAIN AMPLIFIERS
THS7102 制造商:TI 制造商全稱:Texas Instruments 功能描述:ADSL (POTS) CENTRAL OFFICE LINE INTERFACE DRIVER/RECEIVER
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