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參數(shù)資料
| 型號： | LT1677 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Low Noise, Rail-to-Rail Precision Op Amp(低噪聲，滿幅度輸入和輸出精密運算放大器) |
| 中文描述： | 低噪聲，軌至軌精度運算放大器（低噪聲，滿幅度輸入和輸出精密運算放大器） |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 304K |
| 代理商： | LT1677 |
12
LT1677
APPLICATIOU
W
U
U
General
The LT1677 series devices may be inserted directly into
OP-07, OP-27, OP-37 and sockets with or without removal
of external compensation or nulling components. In addi-
tion, the LT1677 may be fitted to 741 sockets with the
removal or modification of external nulling components.
Rail-to-Rail Operation
To take full advantage of an input range that can exceed
the supply, the LT1677 is designed to eliminate phase
reversal. Referring to the photographs shown in Figure 1,
the LT1677 is operating in the follower mode (A
V
= +1) at
a single 3V supply. The output of the LT1677 clips cleanly
and recovers with no phase reversal. This has the benefit
of preventing lock-up in servo systems and minimizing
distortion components.
Offset Voltage Adjustment
The input offset voltage of the LT1677 and its drift with
temperature are permanently trimmed at wafer
testing to a low level. However, if further adjustment of
V
OS
is necessary, the use of a 10k
nulling potentiometer
will not degrade drift with temperature. Trimming to a
value other than zero creates a drift of (V
OS
/300)
μ
V/
°
C,
e.g., if V
OS
is adjusted to 300
μ
V, the change in drift will be
1
μ
V/
°
C (Figure 2).
Input = –0.5V to 3.5V
LT1677 Output
3V
2V
1V
0V
–0.5V
1577 F01a
3V
2V
1V
0V
–0.5V
1577 F01b
Figure 1. Voltage Follower with Input Exceeding the Supply Voltage (V
S
= 3V)
The adjustment range with a 10k
pot is approximately
±
2.5mV. If less adjustment range is needed, the sensitiv-
ity and resolution of the nulling can be improved by using
a smaller pot in conjunction with fixed resistors. The
example has an approximate null range of
±
200
μ
V
(Figure 3).
Figure 3. Improved Sensitivity Adjustment
Figure 2. Standard Adjustment
1677 F02
10k
OUTPUT
INPUT
8
76
4
1
2
3
15V
–15V
–
+
LT1677
1677 F03
1k
4.7k
OUTPUT
8
76
4
1
2
3
15V
–15V
–
+
LT1677
4.7k
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1677_1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Noise, Rail-to-Rail Precision Op Amp |
| LT1677C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Noise, Rail-to-Rail Precision Op Amp |
| LT1677CN8 | 功能描述:IC OPAMP R-R I/O SGL LN 8DIP RoHS:否 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） 供應商設備封裝:10-MSOP 包裝:管件 |
| LT1677CN8#PBF | 功能描述:IC OPAMP R-R I/O SGL LN 8DIP 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） 供應商設備封裝:10-MSOP 包裝:管件 |
| LT1677CS8 | 功能描述:IC OPAMP R-R IN/OUT SNGL 8-SOIC RoHS:否 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） 供應商設備封裝:10-MSOP 包裝:管件 |
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