FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-13501-2E
LINEAR IC
R-2R TYPE 8-BIT D/A CONVERTER WITH
OPERATIONAL AMPLIFIER OUTPUT BUFFERS
MB88346B
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DESCRIPTION
MB88346B-P
The Fujitsu MB88346B is an R-2R type 8-bit resolution digital-to-analog
converter (DAC), designed for interface with a wide range of general 4-
bit and 8-bit microcontrollers including Fujitsu’s MB88200 family,
MB8850 family, and MB88500 family 4-bit single-chip microcontrollers.
The MB88346B has an 8-bit x 12-channel D/A converter with operational
amplifier output buffers. Digital data are input serially by individual chan-
nel units. The loaded digital data are converted into analog DC voltages
by the D/A converter in 20
µs
settling time. Also, the MB88346B has
operational amplifier output buffers. These operational amplifier output
buffers are connected to each channel of the D/A converter, and provide
high current drive capability. The MB88346B is suitable for electronic
volumes and replacement for potentiometers for adjustment, in addition
to normal D/A converter applications.
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PLASTIC DIP
(DIP-20P-M02)
MB88346B-PF
FEATURES
• Conversion method : R-2R resistor ladder
• 8-bit x 12-channel D/A converter with operational amplifier output
buffers
• Max. 2.5MHz Serial data input
• Serial data output for cascade connection
• Max. 20
µs
DAC output settling time
• Max. +1.0/-1.0 mA analog output sink/source current
• Two separate power supply/ground lines for MCU interface block/
operational amplifier output buffer block and D/A converter block
• Pin compatible with MB88341
• Single +5V power supply
• Wide operating temperature range: -20°C to +85°C
• Silicon-gate CMOS process
• Three package options :
20-pin plastic DIP (Suffix : -P), 20-pin plastic SOP (Suffix : -PF),
20-pin plastic SSOP(Suffix : -PFV)
PLASTIC SOP
(FPT-20P-M01)
MB88346B-PFV
PLASTIC SSOP
(FPT-20P-M03)
This device contains circuitry to protect the inputs against damage
due to high static voltages or electric fields. However, it is advised
that normal precautions be taken to avoid application of any voltage
higher than maximum rated voltages to this high impedance circuit.
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FUJITSU [ FUJITSU COMPONENT LIMITED. ]
