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製品の説明
Low Cost Monolithic Voltage-to-Frequency Converter
このサイトで使用されているすべての製品名、商標、ブランド、ロゴは、それぞれの所有者の財産です。 これらの名前、商標、ブランド、およびロゴを使用した製品の描写、説明、または販売は、識別のみを目的としており、権利所有者との提携または許可を示すことを意図したものではありません。
FEATURES
Low Cost
Single or Dual Supply,5 V to 36 V,±5 V to ±18 V
Full-Scale Frequency Up to 500 kHz
Minimum Number of External Components Needed
Versatile Input Amplifier
Positive or Negative Voltage Modes
Negative Current Mode
High lnput Impedance,Low Drift
Low Power: 2.0 mA Quiescent Current
Low Offset: 1 mV
PRODUCT DESCRIPTION
The AD654 is a monolithic V/F converter consisting of an input amplifier, a precision oscillator system, and a high current output stage.A single RC network is all that is required to set up any full scale (FS) frequency up to 500 kHz and any FS input voltage up to ±30 V.Linearity error is only 0.03% for a 250 kHz FS, and operation is guaranteed over an 80 dB dynamic range. The overall temperature coefficient (excluding the effects of external components) is typically ±50 ppm/℃. The AD654 operates from a single supply of 5 V to 36 V and consumes only 2.0 mA quiescent current.
The low drift (4μV/℃ typ) input amplifier allows operationdirectly from small signals such as thermocouples or strain gaugeswhile offering a high (250 MΩ) input resistance.Unlike most V/F converters, the AD654 provides a square-wave output, and can drive up to 12 TTL 1oads, optocouplers, long cables, or similar loads.
PRODUCT HIGHLIGHTS
1. Packaged in both an 8-lead mini-DIP and an 8-lead SOIC package, the AD654 is a complete V/F converter requiring only an RC timing network to set the desired full-scale frequency and a selectable pull-up resistor for the open-collector output stage. Any full scale input voltage range from 100 mV to 10 volts (or greater, depending on +Vs) can be accommodated by proper selection of the timing resistor.The full-scale frequency is then set by the timing capacitor from the simple relationship, f = V/10 RC.
2. A minimum number of low cost external components are necessary.A single RC network is all that is required to set up any full scale frequency up to 500 kHz and any full-scale input voltage up to±30 V.
3. Plastic packaging allows low cost implementation of the standard VFC applications: A/D conversion, isolated signal transmission, F/V conversion, phase-locked loops, and tuning switched-capacitor filters.
4.Power supply requirements are minimal; only 2.0 mA of quiescent current is drawn from the single positive supply from 4.5 volts to 36 volts. In this mode, positive inputs can vary from 0 volts (ground) to (+VS -4) volts. Negative inputscan easily be connected for below ground operation.
5.The versatile open-collector output stage can sink more than 10 mA with a saturation voltage less than 0.4 volts. The Logic Common terminal can be connected to any level between ground (or -VS) and 4 volts below +Vs.This allows easy direct interface to any logic family with either positive or negative logic levels.
データシートの最初の 3 ページのプレビュー
QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
---|---|---|---|
≥1: | US $3.76464 | US $3.38818 | US $3.38818 |
≥5: | US $3.57641 | US $3.21877 | US $16.09385 |
≥10: | US $3.38818 | US $3.04936 | US $30.49360 |
≥20: | US $3.29406 | US $2.96465 | US $59.29300 |
≥50: | US $3.19994 | US $2.87995 | US $143.99750 |
≥100: | US $3.10583 | US $2.79525 | US $279.52500 |
≥200: | US $3.01171 | US $2.71054 | US $542.10800 |
≥500: | US $2.97407 | US $2.67666 | US $1338.33000 |
≥1000: | US $2.91760 | US $2.62584 | US $2625.84000 |
代替製品
Product Name | Description |
---|---|
LM331 | Precision Voltage-to-Frequency Converter with wide supply range and low power consumption. |
ICL8069 | Low Power, Precision Voltage-to-Frequency Converter with excellent linearity. |
MAX1044 | High-Accuracy, Low-Power Voltage-to-Frequency Converter with temperature compensation. |
TLV231 | Low-Voltage, Low-Power Voltage-to-Frequency Converter suitable for battery-powered applications. |
製品の使用
The AD654JR is a voltage-to-frequency converter (VFC) integrated circuit manufactured by Analog Devices. It is widely used in various applications due to its high accuracy, stability, and wide input range. Here are some common circuits and applications where the AD654JR is used:
Data Acquisition Systems:
Process Control Systems:
Sensor Interfaces:
Signal Conditioning:
Frequency Modulation (FM) Circuits:
Pulse Width Modulation (PWM) Generation:
Analog-to-Digital Conversion:
Educational and Research Applications:
Here is a basic example of how the AD654JR can be used in a voltage-to-frequency converter circuit:
+Vcc (5V)
|
R1 (10kΩ)
|
C1 (0.1μF)
|
GND
Input Voltage (Vin) ---|---+---|--- Output Frequency (f_out)
| |
R2 R3 (10kΩ)
| |
GND +Vcc
In this circuit, the input voltage (Vin) is converted to a frequency (f_out) that is proportional to the input voltage. The values of R1, C1, R2, and R3 are chosen based on the desired frequency range and input voltage range.
The AD654JR is a versatile IC that finds applications in a wide range of circuits and systems where accurate and reliable voltage-to-frequency conversion is needed. Its simplicity and robust performance make it a popular choice in both industrial and educational settings.
グローバル物流国リスト (グローバルぶつりゅうこくリスト)
国旗 | 国名 | 配達予定時間 | 最低初重量費用 | ||
---|---|---|---|---|---|
速達 | 通常輸送 | 速達 (0.5kg) | 通常輸送 (0.05kg) |
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AD654JR
AD654JRには世界中にいくつかのブランドがあり、地域の違いや買収によりAD654JRの別名が付けられる場合があります。 AD654JRは次の名前でも知られています。
購入オプション
在庫状態: 10000
最小数量: 1
合計額:
US $300.00以上のご注文で、最初の0.5kg配送料無料。(アメリカを除く)
速達: 到着予定日 {0}
標準配送: 到着予定日 {0}
国:
United States
速達:(FEDEX, UPS, DHL, TNT)300$以上のご注文で、最初の0.5kg配送料無料。超過分は別途請求。(アメリカを除く)
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