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參數(shù)資料
| 型號(hào)： | LT1469CN8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Dual 90MHz, 22V/us 16-Bit Accurate Operational Amplifier |
| 中文描述： | DUAL OP-AMP, 350 uV OFFSET-MAX, 88 MHz BAND WIDTH, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 179K |
| 代理商： | LT1469CN8 |
LT1469
8
Capacitive Loading
The LT1469 drives capacitive loads of up to 100pF in unity-
gain and 300pF in a gain of –1. When there is a need to
drive a larger capacitive load, a small series resistor
should be inserted between the output and the load. In
addition, a capacitor should be added between the output
and the inverting input as shown in Figure 3.
Settling Time
The LT1469 is a single stage amplifier with an optimal
thermal layout that leads to outstanding settling perfor-
mance. Measuring settling, even at the 12-bit level is very
challenging, and at the 16-bit level requires a great deal of
subtlety and expertise. Fortunately, there are two excellent
Linear Technology reference sources for settling mea-
surements—Application Notes 47 and 74. Appendix B of
AN47 is a vital primer on 12-bit settling measurements
and AN74 extends the state-of-the-art while concentrating
on settling time with a 16-bit current output DAC input.
The settling of the DAC I-to-V converter on the back page
was measured using the exact methods of AN74. The
optimum nulling of the DAC output capacitance requires
20pF across the 6k feedback resistor. The theoretical limit
for 16-bit settling is 11.1 times this RC time constant or
1.33
μ
s. The actual settling time is 1.7
μ
s at the output of the
LT1469. The LT1469 is the fastest Linear Technology
amplifier in this application.
The RC output noise filter adds a slight settling time delay
of 100ns but reduces the noise bandwidth to 1.6MHz
which increases the output resolution for 16-bit accuracy.
+
–
V
OUT
C
L
R
F
R
O
≥
(1 + R
F
/R
G
)/(2
π
C
L
5MHz)
R
F
≥
10R
O
C
F
= (2R
O
/R
F
)C
L
C
F
1/2 LT1469
V
IN
1469 F03
R
G
R
O
Figure 3. Driving Capacitive Loads
APPLICATIU
W
U
U
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1490AIN8 | Circular Connector; No. of Contacts:55; Series:MS27473; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:22; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:22-55 RoHS Compliant: No |
| LT1490ACS8 | Dual Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp |
| LT1490AIMS8 | Dual Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp |
| LT1490AIS8 | JT 55C 55#22M PIN PLUG |
| LT1490ACMS8 | Fasteners |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1469CN8#PBF | 功能描述:IC OPAMP 16BIT DUAL 90MHZ 8DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| LT1469CN8-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 90MHz, 22V/μs 16-Bit Accurate Operational Amplifi er |
| LT1469CS8 | 功能描述:IC OPAMP 16BIT DUAL 90MHZ 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| LT1469CS8#PBF | 功能描述:IC OPAMP 16BIT DUAL 90MHZ 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| LT1469CS8#PBF | 制造商:Linear Technology 功能描述:IC OP-AMP 90MHZ 22V/ SOIC-8 制造商:Linear Technology 功能描述:IC, OP-AMP, 90MHZ, 22V/s, SOIC-8 |
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