MAX7424CUA+

MAXIM INTEGRATED PRODUCTS  MAX7424CUA+  开关电容滤波器, Butterworth, 低通, 5th, 1, 2.7 V, 3.6 V, µMAX

The is a 5th order low pass, switched capacitor filter in 8 pin µMAX package. This butterworth filters provides a maximally flat pass band response, making them ideal for instrumentation applications that require minimum deviation from the DC gain throughout the pass band. It operates with a 100:1 clock to corner frequency ratio. Two clocking options are available on this device, self-clocking through the use of an external capacitor or external clocking for tighter corner-frequency control. An offset adjust pin allows for adjustment of the DC output level. It uses an alternative approach which is to emulate a passive network using switched-capacitor integrators with summing and scaling. It is used in DAC post filtering, air-bag electronics and CT2 base stations.

.

Supply voltage range is 2.7V to 3.6V

.

Operating temperature range from 0°C to 70°C

.

Typical corner frequency range from 100:1 to 45KHz at VIN = 2.5Vp-p

.

Clock to corner tempco of 10ppm/°C, typical internal oscillator frequency is 110KHz

.

Typical supply current is 3mA operating mode, no load

.

Typical shutdown current is 0.2µA