參數(shù)資料
型號： LT1996CDD
廠商： LINEAR TECHNOLOGY CORP
元件分類： 運動控制電子
英文描述： Precision, 100uA Gain Selectable Amplifier
中文描述： OP-AMP, 250 uV OFFSET-MAX, 0.56 MHz BAND WIDTH, PDSO10
封裝： 3 X 3 MM, PLASTIC, MO-229(WEED2), DFN-10
文件頁數(shù)： 13/24頁
文件大小： 352K
代理商： LT1996CDD
LT1996
13
1996f
Figure 6. LT1996 Provides for Easy Attenuation to the Op Amp’s
+Input. The P9 Input Can Be Taken Well Outside of the Supplies
Figure 7. Over 600 Unique Gain Settings Achievable with the
LT1996 by Combining Attenuation with Noninverting Gain
Attenuation Using the P Input Resistors
Attenuation happens as a matter of fact in difference
amplifier configurations, but it is also used for reducing
peak signal level or improving input common mode range
even in single ended systems. When signal conditioning
indicates a need for attenuation, the LT1996 resistors are
ready at hand. The four precision resistors can provide
several attenuation levels, and these are tabulated in
Table 2 as a design reference.
Because the attenuations and the noninverting gains are
set independently, they can be combined. This provides
high gain resolution, about 700 unique gains between
0.0085 and 118, as plotted in Figure 7. This is too large a
number to tabulate, but the designer can calculate achiev-
able gain by taking the vector product of the gains and
attenuations in Tables 1 and 2, and seeking the best match.
Average gain resolution is 1.5%, with worst case steps of
about 50% as seen in Figure 7.
Table 2. Configuring the P Pins for Various Attenuations. Those
Shown in Bold Are Functional Even When the Input Drive
Exceeds the Supplies
P81, P27, P9, REF Connection
A
P81
0.0085
Grounded
Grounded
0.0092
Grounded
Grounded
0.0110
Grounded
0.0122
Grounded
0.0270
Float
Grounded
0.0357
Float
Grounded
0.0763
Grounded
Grounded
0.0769
Grounded
Grounded
0.0847
Grounded
Grounded
0.0989
Grounded
0.1
Grounded
0.110
Grounded
0.229
Grounded
Driven
0.231
Grounded
Driven
0.237
Grounded
Driven
0.243
Float
Grounded
0.248
Grounded
Driven
0.25
Float
Grounded
0.25
Grounded
Driven
0.257
Grounded
Driven
0.270
Float
Grounded
0.305
Grounded
Driven
0.308
Grounded
Driven
0.314
Grounded
Driven
0.686
Driven
Grounded
0.692
Driven
Grounded
0.695
Driven
Grounded
0.730
Float
Driven
0.743
Driven
Grounded
0.75
Float
Driven
0.752
Driven
Grounded
0.757
Float
Driven
0.763
Driven
Grounded
0.769
Driven
Grounded
0.771
Driven
Grounded
0.890
Driven
0.9
Float
0.901
Driven
0.915
Driven
Driven
0.923
Driven
Driven
0.924
Driven
Driven
0.964
Float
Driven
0.973
Float
Driven
0.988
Driven
0.989
Driven
0.991
Driven
Driven
0.992
Driven
Driven
P27
P9
REF
Driven
Driven
Driven
Driven
Driven
Driven
Grounded
Float
Driven
Grounded
Float
Driven
Grounded
Float
Driven
Grounded
Grounded
Float
Float
Driven
Driven
Grounded
Float
Driven
Grounded
Float
Driven
Grounded
Grounded
Float
Driven
Driven
Grounded
Float
Driven
Grounded
Grounded
Driven
Grounded
Float
Driven
Grounded
Grounded
Grounded
Grounded
Grounded
Grounded
Grounded
Float
Grounded
Float
Grounded
Float
Driven
Driven
Driven
Driven
Driven
Driven
Grounded
Grounded
Grounded
Driven
Float
Driven
Float
Float
Driven
Driven
Driven
Driven
Grounded
Grounded
Grounded
Grounded
Float
Grounded
Float
Grounded
Driven
Driven
Driven
Grounded
Driven
Grounded
Grounded
Grounded
Grounded
Float
Driven
Float
Driven
Float
Driven
Float
Float
Float
Float
Float
Float
Float
Float
Float
Float
APPLICATIU
W
U
U
V
IN
OKAY UP
TO
±
60V
+
450k/81
450k/27
450k/9
450k
5
1
2
3
LT1991 ATTENUATING TO THE +INPUT BY
DRIVING AND GROUNDING AND FLOATING
INPUTS R
A
= 50k, R
G
= 50k/9, SO A = 0.1.
V
INT
V
INT
V
= A V
A = R
G
/(R
A
+ R
G
)
V
IN
LT1996
R
A
R
G
1996 F06
CLASSICAL ATTENUATOR
COUNT
0
1000
100
10
1
0.1
0.01
0.001
300
1996 F07
100
200
400
500
700
600
G
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參數(shù)描述
LT1996CDD#PBF 功能描述:IC AMP PREC GAIN 10-DFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOIC 包裝:帶卷 (TR)
LT1996CDD#TRPBF 功能描述:IC AMP PREC GAIN 10-DFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SO 包裝:帶卷 (TR)
LT1996CMS 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, 100uA Gain Selectable Amplifier
LT1996CMS#PBF 功能描述:IC AMP PREC GAIN 10-MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓模塊:Differential Circuit Design Techniques for Communication Applications 標準包裝:1 系列:- 放大器類型:RF/IF 差分 電路數(shù):1 輸出類型:差分 轉(zhuǎn)換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤，CSP 供應商設備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT
LT1996CMS#TRPBF 功能描述:IC AMP PREC GAIN 10-MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOIC 包裝:帶卷 (TR)
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