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參數(shù)資料
| 型號： | LT1996ACDD |
| 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)： | 11/24頁 |
| 文件大?。?/td> | 352K |
| 代理商： | LT1996ACDD |
LT1996
11
1996f
representation of the circuit on the top. The LT1996 is
shown on the bottom configured in a precision gain of 9.1.
One of the benefits of the noninverting op amp configura-
tion is that the input impedance is extremely high. The
LT1996 maintains this benefit. Given the finite number of
available feedback resistors in the LT1996, the number of
gain configurations is also finite. The complete list of such
Hi-Z input noninverting gain configurations is shown in
Table 1. Many of these are also represented in Figure 5 in
schematic form. Note that the P-side resistor inputs have
been connected so as to match the source impedance
seen by the internal op amp inputs. Note also that gain and
noise gain are identical, for optimal precision.
Table 1. Configuring the M Pins for Simple Noninverting Gains.
The P Inputs are driven as shown in the examples on the next
page
M81, M27, M9 Connection
Gain
M81
1
Output
1.08
Output
1.11
Output
1.30
Output
1.32
Float
1.33
Output
1.44
Output
3.19
Grounded
3.7
Float
3.89
Grounded
4.21
Grounded
9.1
Grounded
10
Float
11.8
Grounded
28
Float
37
Float
82
Grounded
91
Grounded
109
Grounded
118
Grounded
M27
Output
Output
Float
Grounded
Output
Grounded
Grounded
Output
Grounded
Output
Output
Float
Float
Grounded
Grounded
Grounded
Float
Float
Grounded
Grounded
M9
Output
Grounded
Grounded
Output
Grounded
Float
Grounded
Output
Output
Float
Grounded
Output
Grounded
Output
Float
Grounded
Float
Grounded
Float
Grounded
suggested in Figure 1: raise V
REF
, lower V
EE
, or provide
some negative V
MORE
.
Likewise, from the lower common mode extreme, making
the negative input more negative will raise the output
voltage, limited by V
CC
– 0.04V.
MIN V
MORE
= (V
REF
– V
CC
+ 0.04V) R
G
/R
F
(should be negative)
Again, the additional input range calculated here is only
available provided the other remaining constraint is not
violated, the maximum voltage allowed on the pin.
The Classical Noninverting Amplifier: High Input Z
Perhaps the most common op amp configuration is the
noninverting amplifier. Figure 4 shows the textbook
Figure 4. The LT1996 as a Classical Noninverting Op Amp
APPLICATIU
W
U
U
4pF
4pF
–
+
R
F
R
G
V
IN
V
IN
V
OUT
V
OUT
V
= GAIN V
IN
GAIN = 1 + R
F
/R
G
–
+
1996 F04
450k/81
450k/27
450k/9
450k/81
450k/27
450k/9
450k
450k
8
6
5
9
10
1
2
3
LT1996
CLASSICAL NONINVERTING OP AMP CONFIGURATION.
YOU PROVIDE THE RESISTORS.
CLASSICAL NONINVERTING OP AMP CONFIGURATION
IMPLEMENTED WITH LT1991. R
F
= 45k, R
G
= 5.6k, GAIN = 9.1.
GAIN IS ACHIEVED BY GROUNDING, FLOATING OR FEEDING BACK
THE AVAILABLE RESISTORS TO ARRIVE AT DESIRED R
F
AND R
G
.
WE PROVIDE YOU WITH <0.1% RESISTORS.
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| LT1996ACDD#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: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(shè)備封裝:8-SO 包裝:帶卷 (TR) |
| LT1996ACDD#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(shè)備封裝:8-SO 包裝:帶卷 (TR) |
| LT1996ACMS | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, 100uA Gain Selectable Amplifier |
| LT1996ACMS#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:- 標準包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設(shè)備封裝:10-MSOP 包裝:管件 |
| LT1996ACMS#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:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設(shè)備封裝:10-MSOP 包裝:管件 |
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