PBM3960 Microstepping Controller / Dual Digital to Analog Converter common ic chips
electronics ic chip
,integrated circuit components
PBM3960 Microstepping Controller/Dual Digital-to-Analog Converter common ic chips digital ic circuits
Key Features
• Analog control voltages from 3 V down to 0.0 V.
• High-speed microprocessor interface.
• Automatic fast/slow current decay control.
• Full-scale error ±1 LSB.
• Interfaces directly with TTL levels and CMOS devices.
• Fast conversion speed, 3 µs.
• Matches PBL 3771.
Description
PBM 3960/1 is a dual 7-bit+sign, Digital-to-Analog Converter (DAC) especially developed to be used together with the PBL 3771/1, Precision Stepper Motor driver in micro-stepping applications. The circuit has a set of input registers connected to an 8-bit data port for easy interfacing directly to a microprocessor. Two registers are used to store the data for each seven-bit DAC, the eighth bit being a sign bit (sign/ magnitude coding). A second set of registers are used for automatic fast/slow current decay control in conjunction with the PBL 3771/1, a feature that greatly improves high-speed micro-stepping performance. The PBM 3960/1 is fabricated in a highspeed CMOS process.
STOCK LIST
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