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ANALOG DEVICES AD7740KRMZ

Voltage to Frequency Converter, 1 MHz, 0.012 %, 3V to 5.25V, MSOP, 8 Pins

ANALOG DEVICES AD7740KRMZ
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Manufacturer Part No:
AD7740KRMZ
Order Code:
4023463
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Technical Datasheet:
AD7740KRMZ   Datasheet
ECAD / MCAD
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Product Overview

AD7740 is a low-cost, ultra small synchronous voltage-to-frequency converter (VFC). The full-scale output frequency is synchronous with the clock signal on the CLKIN pin. This clock can be generated with the addition of an external crystal (or resonator) or supplied from a CMOS-compatible clock source. The part has a maximum input frequency of 1MHz. For an analogue input signal that goes from 0V to VREF, the output frequency goes from 10% to 90% of fCLKIN. In buffered mode, the part provides a very high input impedance and accepts a range of 0.1V to VDD - 0.2V on the VIN pin. There is also an unbuffered mode of operation that allows VIN to go from -0.15V to VDD + 0.15V. The modes are interchangeable using the BUF pin. It is widely used in application such as isolation of high common-mode voltages, low-cost analogue-to-digital conversion, battery monitoring, automotive sensing etc.
  • 3V or 5V operation
  • Low power is 3mW typ
  • True -150mV capability without charge pump
  • VREF range is 2.5V to VDD
  • Internal 2.5V reference
  • 1MHz max input frequency
  • Selectable high impedance buffered input
  • Input current is 8µA typ at (unbuffered mode, VIN = 5.4V, REFIN = 5.25V)
  • Operating temperature range is 0°C to +85°C
  • Packaging style is 8-lead MSOP

Product Information

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:
1MHz

:
-

:
0.012%

:
3V to 5.25V

:
MSOP

:
8Pins

:
-

:
MSL 1 - Unlimited

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Technical Documents (3)

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