AD7574JN

The AD7574JN is a kind of low-cost, 8-bit uP compatible ADC. It adopts the successive-approximations technique to provide a conversion time of 15 us.Designed to be operated as a memory mapped input device, the AD7574JN can be interfaced like RAM, ROM, or slow memory. With internal clock, +5 V operation, on-board comparator and interface logic, low power dissipation, It is suitable for most ADC/uP interface applications. The device is also widely used in avionics, instrumentation, and process automation applications for its small size (18-pin DIP) and monolithic reliability.

There are some features as follows: (1)8-bit resolution; (2)no missed codes over full temperature range; (3)fast conversion time: 15 us; (4)interfaces to uP like RAM, ROM or slow-memory; (5)low power dissipation: 30 mW; (6)ratiometric capability; (7)single +5 V supply; (8)low cost; (9)internal comparator and clock oscillator.

The following is about the absolute maximum ratings: (1)VDD to AGND: 0 V to +7.0 V; (2)VDD to DGND: 0 V to +7.0 V; (3)AGND to DGND: -0.3 V to VDD V; (4)digital input voltage to DGND (pins 15 and 16): -0.3 to +15.0 V; (5)digital output voltage to DGND (pins 6-14): -0.3 to VDD V; (6)CLK input voltage (pin 17) to DGND: -0.3 to VDD V; (7)VREF (pin 2): ±20 V ; (8)VBOFS (pin 3): ±20 V ; (9)VAIN (pin 4): ±20 V ; (10)operating temperature range: 0 to 70; (11)storage temperature range: -65 to 150; (12)power dissipation: 650 mW.