NJU9210C

The NJU9210C is a kind of 3`3/4 digits with 42 segments bargrah single chip digital multimeter LSI. The AD converter block incorporates two kinds of dual-slope AD converters such as high-accuracy and high-speed converter. The high-accuracy AD converter performs accurate 3`3/4 digits digital display and the high-speed AD converter performs high-speed 42 segments bargraph display. The input attenuator part of NJU9210C can be simplified because of incorporated resistance for resistance measurement is also applied for the bleeder resistance. NJU9210C is suitable for high-performance full auto-ranging digital multimetersof NJU9210C because of many functions controlled by internal CPU, such as data hold, data memory, auto power-off and external relay driving.

There are some features of NJU9210C as follows: (1)3`3/4 digits display (±3999); (2)42 segments bargraph display; (3)high-accurate AD converter for digital display: 2 times/sec; (4)high-accurate AD converter for bargraph display: 20 times/sec; (5)full auto-ranging measurement; (6)rotary or pulse type input mode selection; (7)external relay driving; (8)power-on initialization; (9)auto power-off function; (10)data hold function; (11)data memory function; (12)relative display function; (13)capacitor measurement function; (14)LCD display; (15)low operating current; (16)serial data output (BCD format); (17)CMOS technology.

The following of NJU9210C is about the absolute maximum ratings: (1)supply voltage range, VDD-GND: 4 V; (2)control terminal voltage, Vid: GND to VDD V ; (3)analog terminal voltage, Vis: VSS to VDD V; (4)terminals current: IDD, IGND (supply terminal): 50 mA; IOVH (OVH terminal): 50 mA; II (others): 10 mA; (5)operating temperature range, Topr: 0 to +50; (6)storage temperature range, Tstg: -40 to +125.