MC1404屬于集成電路（IC）的計數(shù)器除法器。由安森美半導(dǎo)體公司制造生產(chǎn)的MC1404計數(shù)器，除法器計數(shù)器和除法器 IC 是數(shù)字邏輯器件，可對輸入發(fā)生的邏輯轉(zhuǎn)換進(jìn)行計數(shù)，然后使用多個并行輸出重新發(fā)送累加的計數(shù)，和/或生成單個輸出信號轉(zhuǎn)換，從而對應(yīng)用某些整數(shù)數(shù)量輸入信號轉(zhuǎn)換進(jìn)行響應(yīng)。除了簡單的事件計數(shù)，它們還可用于各種頻率合成應(yīng)用。

Voltage Reference Family

The MC1404 of ICs is a family of temperature–compensated voltage references for precision data conversion applications, such as A/D, D/A, V/F, and F/V. Advances in laser–trimming and ion–implanted devices, as well as monolithic fabrication techniques, make these devices stable and accurate to 12 bits over both military and commercial temperature ranges. In addition to excellent temperature stability, these parts offer excellent long–term stability and low noise.

? Output Voltages: Standard, 5.0 V, 6.25 V, 10 V

? Trimmable Output: > ± 6

? Wide Input Voltage Range: Vref + 2.5 V to 40 V

? Low Quiescent Current: 1.25 mA Typical

? Temperature Coefficient: 10 ppm/°C Typical

? Low Output Noise: 12 μV p–p Typical

? Excellent Ripple Rejection: > 80 dB Typical

Typical Applications

? Voltage Reference for 8 to 12 Bit D/A Converters

? Low TC Zener Replacement

? High Stability Current Reference

? MPU D/A and A/D Applications