제품 정보
제품 개요
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 −40°C to +105°C
- Packaging style is 8-lead SOT-23
메모
ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party
기술 사양
1MHz
0.012%
SOT-23
-
No SVHC (21-Jan-2025)
-
3V to 5.25V
8Pins
MSL 1 - Unlimited
기술 문서 (1)
법률 및 환경
최종후의 중요 제조 공정이 이루어진 국가원산지:Philippines
최종후의 중요 제조 공정이 이루어진 국가
RoHS
RoHS
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