AD7740KRMZ: 3 V/5 V Low Power, Synchronous Voltage-to-Frequency Converter
The AD7740 is the world's smallest, lowest-cost, 12-Bit accurate VFC.
Since this is a synchronous converter, the output frequency is related to the fixed master clock frequency so temperature stability is much improved over asynchronous VFCs. With a 1 MHz input clock frequency, the FS output frequency is 900 kHz. The voltage reference input can be tied to the supply, if required.
Historically the primary applications for VFCs have been either to implement low cost A/D conversion or to achieve simple isolation.
The AD7740 is being offered in an 8-pin MicroSOIC package plus an 8-lead SOT-23 package. The SOT-packaged devices are only available on T&R. Two operating temperature ranges are available; from 0°C to +85°C and from -40°C to +105°C
AD7740KRMZ 特点
- Synchronous Operation
- Full-Scale Frequency Set by External System Clock
- 8-Lead SOT-23 and 8-Lead microSOIC Package
- 3 V and 5 V Operation
- Low Power: 3 mW (Typ)
- Nominal Input Range: 0 to VREF
- True - 150 mV Capability Without Charge Pump
- VREF Range: 2.5 V to VDD
- Internal 2.5 V Reference
- 1 MHz Max Input Frequency
- Selectable High Impedance Buffered Input
- Minimal External Components Required
AD7740KRMZ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD7740KRM | 量产 | 8 ld MSOP | 8 | 工业 |
| AD7740KRM-REEL7 | 量产 | 8 ld MSOP | 8 | 工业 |
| AD7740KRMZ | 量产 | 8 ld MSOP | 8 | 工业 |
| AD7740KRMZ-REEL | 量产 | 8 ld MSOP | 8 | 工业 |
| AD7740KRMZ-REEL7 | 量产 | 8 ld MSOP | 8 | 工业 |
| AD7740YRM | 量产 | 8 ld MSOP | 8 | 工业 |
| AD7740YRM-REEL | 量产 | 8 ld MSOP | 8 | 汽车级 |
| AD7740YRM-REEL7 | 量产 | 8 ld MSOP | 8 | 汽车级 |
| AD7740YRMZ | 量产 | 8 ld MSOP | 8 | 工业 |
| AD7740YRMZ-REEL | 量产 | 8 ld MSOP | 8 | 汽车级 |
| AD7740YRMZ-REEL7 | 量产 | 8 ld MSOP | 8 | 汽车级 |
| AD7740YRTZ-REEL7 | 量产 | 8 ld SOT-23 | 8 | 汽车级 |
AD7740KRMZ 应用技术支持与电子电路设计开发资源下载
- AD7740 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
