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參數資料
| 型號： | AD8510BRZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 8/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP JFET 8MHZ PREC LN 8SOIC |
| 設計資源： | Versatile High Precision Programmable Current Sources Using DACs, Op Amps, and MOSFET Transistors (CN0151) |
| 標準包裝： | 1,000 |
| 放大器類型： | J-FET |
| 電路數： | 1 |
| 轉換速率： | 20 V/µs |
| 增益帶寬積： | 8MHz |
| 電流 - 輸入偏壓： | 25pA |
| 電壓 - 輸入偏移： | 80µV |
| 電流 - 電源： | 2.2mA |
| 電流 - 輸出 / 通道： | 70mA |
| 電壓 - 電源，單路/雙路(±)： | ±4.5 V ~ 18 V |
| 工作溫度： | -40°C ~ 125°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) |
AD8510/AD8512/AD8513
Rev. I | Page 16 of 20
PRECISION RECTIFIERS
TIME (1ms/DIV)
VOL
TA
G
E
(
1V/
D
IV)
02
72
9-
04
6
Rectifying circuits are used in a multitude of applications. One
of the most popular uses is in the design of regulated power
supplies, where a rectifier circuit is used to convert an input
sinusoid to a unipolar output voltage.
However, there are some potential problems with amplifiers
used in this manner. When the input voltage (VIN) is negative,
the output is zero, and the magnitude of VIN is doubled at the
inputs of the op amp. If this voltage exceeds the power supply
voltage, it may permanently damage some amplifiers. In addition,
the op amp must come out of saturation when VIN is negative.
This delays the output signal because the amplifier requires
time to enter its linear region.
Although the AD8510/AD8512/AD8513 have a very fast
overdrive recovery time, which makes them great choices for the
rectification of transient signals, the symmetry of the positive
and negative recovery times is also important to keep the output
signal undistorted.
Figure 51. Half-Wave Rectifier Signal (OUT A in Figure 50)
TIME (1ms/DIV)
VO
LT
A
G
E
(
1V/
D
IV)
02
72
9-
0
47
Figure 50 shows the test circuit of the rectifier. The first stage of
the circuit is a half-wave rectifier. When the sine wave applied at
the input is positive, the output follows the input response.
During the negative cycle of the input, the output tries to swing
negative to follow the input, but the power supply restrains it to
zero. In a similar fashion, the second stage is a follower during
the positive cycle of the sine wave and an inverter during the
negative cycle.
8
4
2
1
3
1/2
AD8512
4
8
5
7
6
2/2
AD8512
R2
10k
R3
10k
R1
1k
OUT A
(HALF WAVE)
OUT B
(FULL WAVE)
10V
VIN
3V p-p
02729-
045
Figure 52. Full-Wave Rectifier Signal (OUT B in Figure 50)
Figure 50. Half-Wave and Full-Wave Rectifiers
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| AD8511ARUZ-REEL | 功能描述:IC MUX LCD DVR 11CH 3.3V 48TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 顯示器驅動器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 顯示器類型:真空熒光 (VF) 配置:5 x 7（矩陣） 接口:串行 數字或字符:- 電流 - 電源:3.5mA 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.154"，3.90mm 寬） 供應商設備封裝:16-QSOP 包裝:帶卷 (TR) |
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