AD654: Low Cost Monolithic Voltage-to-Frequency Converter
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/°C. The AD654 operates from a single supply of 5 V to 36 V and consumes only 2.0 mA quiescent current.The low drift (4 µV/°C typ) input amplifier allows operation directly from small signals such as thermocouples or strain gauges while offering a high (250 M(ohm)) input resistance. Unlike most V/F converters, the AD654 provides a square-wave output, and can drive up to 12 TTL loads, optocouplers, long cables, or similar loads
AD654 特点
- 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 Input Impedance, Low Drift
- Low Power: 2.0 mA Quiescent Current
- Low Offset: 1 mV
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AD654 技术指标
- Architecture: Non-Synchronous
- # Channels: 1-Single Ended
- Input Voltage Range (V): �14V
- Full Scale Fout (kHz): 500kHz
- Accuracy (%/kHz): 0.4
- Voltage Supply (V): +/- 5 to +/- 18
- Supply Current : 2.5mA
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AD654 芯片订购指南
| 产品型号 |
封装 |
引脚 |
温度范围 |
包装和数量 |
报价*(100-499) |
报价*1000 pcs |
| AD654JN 产品状态: 量产 |
8 ld PDIP |
8 |
商业 |
Tube, 50 |
$ 5.00 |
$ 4.47 |
| AD654JNZ 产品状态: 量产 |
8 ld PDIP |
8 |
商业 |
Tube, 50 |
$ 4.45 |
$ 4.00 |
| AD654JNZ/+ 产品状态: 量产 |
8 ld PDIP |
8 |
商业 |
Tube, 50 |
$ 7.05 |
$ 7.05 |
| AD654JR 产品状态: 量产 |
8 ld SOIC |
8 |
商业 |
Tube, 98 |
$ 4.85 |
$ 4.35 |
| AD654JR-REEL 产品状态: 量产 |
8 ld SOIC |
8 |
商业 |
Reel, 2500 |
- |
$ 4.35 |
| AD654JRZ 产品状态: 量产 |
8 ld SOIC |
8 |
商业 |
Tube, 98 |
$ 4.20 |
$ 3.76 |
| AD654JRZ-REEL 产品状态: 量产 |
8 ld SOIC |
8 |
商业 |
Reel, 2500 |
- |
$ 3.76 |
| AD654JRZ-REEL7 产品状态: 量产 |
8 ld SOIC |
8 |
商业 |
Reel, 750 |
- |
$ 3.76 |
AD654 应用技术支持与电子电路设计开发资源下载
- AD654 数据手册DataSheet下载 .pdf
- Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
- ADC模数转换器选型指南 . pdf
