MB88347-P Fujitsu Microelectronics, Inc., MB88347-P Datasheet

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MB88347-P

Manufacturer Part Number
MB88347-P
Description
R-2r Type 8-bit D/A Converter With op Amp Output Buffers
Manufacturer
Fujitsu Microelectronics, Inc.
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
MB88347-PF
Manufacturer:
FUJITSU/富士通
Quantity:
20 000
FUJITSU SEMICONDUCTOR
LINEAR IC
R-2R TYPE 8-BIT D/A CONVERTER WITH
OPERATIONAL AMPLIFIER OUTPUT BUFFERS
MB88347
The Fujitsu MB88347 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 MB88347 has an 8-bit 8-channel D/A converter with operational amplifier output buffers. Digital data are input
serially by individual channel units. The loaded digital data are converted into analog DC voltages by the D/A converter
in 100 s settling time. Also, the MB88347 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
MB88347 is suitable for electronic volumes and replacement for potentiometers for adjustment, in addition to normal
D/A converter applications.
This device contains cirduitry 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.
DESCRIPTION
FEATURES
• Conversion method : R-2R resistor ladder
• 8-bit
• Max. 2.5 MHz Serial data input
• Serial data output for cascade connection
• Max. 100 s 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
PACKAGE
DATA SHEET
D/A converter block
8-channel D/A converter with operational amplifier output buffers
(DIP-16P-M04)
PLASTIC DIP
MB88347-P
(FPT-16P-M06)
PLASTIC SOP
MB88347-PF
PLASTIC SSOP
(FPT-16P-M05)
MB88347-PFV
DS04-13506-1E
(Continued)
1

Related parts for MB88347-P

MB88347-P Summary of contents

Page 1

... This device contains cirduitry to protect the inputs against damage due to high static voltages or electric fields. However advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit. MB88347-PF MB88347-PFV PLASTIC SOP PLASTIC SSOP ...

Page 2

... LD AO5 AO6 AO8 AO7 Figure 1 Logic Symbol + AO1 – AO8 MB88347 DO GND V SS MB88347-PFV GND SS AO2 2 AO1 15 AO3 AO4 4 13 CLK (Top View) AO5 AO6 AO7 7 10 AO8 ...

Page 3

... Only for D/A converter block except operational amplifier block Digital Block (MCU Interface) 12-bit Shift Register 4-bit Address Decoder 8-bit Data Latch R-2R Type 8-bit D/A Converter MB88347 GND DO D10 D11 – AO8 V * ...

Page 4

... MB88347 PIN DESCRIPTION PIN ASSIGNMENT and Table 1 show the pin assignment and pin description of the MB88347. Symbol Pin No. Type Power Supply V 9 — CC GND 16 — — — SS Control Input CLK Data Input/Output DAC Output ...

Page 5

... For cascade connection, a serial data output is provided. DEVICE CONFIGURATION As illustrated in BLOCK DIAGRAM, the MB88347 device is composed by the digital block (MCU interface) and analog block (D/A converter with operational amplifier output buffers). The digital block consists of a 12-bit shift register, a 4-bit address decoder, and 8-channels of 8-bit data latches ...

Page 6

... MB88347 (Last-In) LSB Address 1H Data Latch #1 2H Data Latch #2 3H Data Latch #3 4H Data Latch #4 5H Data Latch #5 6H Data Latch #6 7H Data Latch #7 8H Data Latch #8 6 Figure 3 Shift Register Format 8-bit Data To Data Latch ...

Page 7

... Figure 5 Configuration of R-2R Resistor Ladder D/A Converter with Operational Amplifier Output Biffer Powered/grounded by the V and GND pins Internal Bias Generator * (Common to ch. #1-ch. # Operational Amplifier Output Buffer* MB88347 + AOx – 7 ...

Page 8

... Data Latch Selected MB88347 Deselected Data Latch #1 Data Latch #2 Data Latch #3 Data Latch #4 Data Latch #5 Data Latch #6 Data Latch #7 Data Latch #8 Deselected Deselected Deselected Deselected Deselected Deselected Deselected DAC Output Level AOx ...

Page 9

... Figure 6 Cascade Connection Example +5 V MB88347 Vcc DATA DI (SO) CLOCK CLK Microcontroller (SC/TO) Strobe LD GND GND * : MB88347 can be used mixed with MB88342 MB88342 * CLK LD V GND MB88347 V DD MB88347 DI DO CLK LD GND ...

Page 10

... MB88347 APPLICATION DESCRIPTION The MB88347 is suitable for electronic volumes and replacement for adjustment potentiometers, in addition to normal D/A converter applications. Figure 7 illustrates an application example for a gain control. Figure 7 Application Example – Gain Control + I/O port I/O port Microcontroller I/O port I/O port GND 10 Input V CC ...

Page 11

... Min Typ Max 4.5 5.0 5.5 — 0 — 2.0 — GND — V – 2.0 CC — — +1.0 — — +1.0 — — 1.0 –20 — +85 MB88347 Condition +25 C GND = GND = 0 V Should not exceed 0 Condition – V 2.0 CC ...

Page 12

... MB88347 DC CHARACTERISTICS (Recommended operating conditions unless otherwise noted.) Digital Block (MCU) Interface Parameter Symbol Supply Voltage ( Supply Current ( Input Leakage Current (CLK, DI, and LD) Input Low Voltage (CLK, DI, and LD) Input High Voltage (CLK, DI, and LD) Output Low Voltage (DO) Output High Voltage (DO) ...

Page 13

... 0 – 0.3 — – End point line Nonlinearity error Digita data #FF MB88347 Condition GND = Digital Data = # 5 GND = +500 A, Digital Data = # 5 GND = 0 V, ...

Page 14

... MB88347 AC CHARACTERISTICS (Recommended operating conditions unless otherwise noted.) Parameter Symbol Clock Low Time Clock High Time Clock Rise Time Clock Fall Time Data Setup Time Data Hold Time Load Strobe High Time Load Strobe Setup Time Load Strobe Hold Time DAC Output Settling Time ...

Page 15

... CC t CKL 0 0 DCH CHD LD AOx Previous Data Figure 10 Input/Output Timing tcf LDH t CHL 0 0 LDD Previous Data 0 New Data Valid 0 MB88347 0 LDC New Data Valid 0 ...

Page 16

... MB88347 R-2R Ladder Output (D/A Converter Output Notes GND SS 16 Figure 11 Analog Output Voltage Range Operational Amplifier Output (Buffer Output GND AOH CC AOX Output Range (Linear Range) V (GND) AOL ...

Page 17

... MAX 1994 FUJITSU LIMITED D16033S-2C-3 C +0.20 19.55 –0.30 +.008 .770 –.012 6.20±0.25 (.244±.010) 0.51(.020)MIN 0.46±0.08 (.018±.003) +0.30 1.52 –0 +.012 .060 –0 2.54(.100) TYP MB88347 0.25±0.05 (.010±.002) 15°MAX 7.62(.300) TYP Dimensions in mm(inches). 17 ...

Page 18

... MB88347 MB88347-PF 16 pin, Plastic SOP (FPT-16P-M06) 10.15 INDEX 1.27(.050) TYP "A" 8.89(.350)REF 1994 FUJITSU LIMITED F16015S-2C +0.25 +.010 .400 –0.20 –.008 5.30±0.30 7.80±0.40 (.209±.012) (.307±.016) "B" 0.45±0.10 Ø0.13(.005) M (.018±.004) Details of "A" part ...

Page 19

... MB88347-PFV 16 pin, Plastic SSOP (FPT-16P-M05) * 5.00±0.10(.197±.004) INDEX 0.65±0.12 0.22 (.0256±.0047) .009 4.55(.179)REF 1994 FUJITSU LIMITED F16013S-2C 4.40±0.10 6.40±0.20 (.173±.004) (.252±.008) "A" +0.10 –0.05 +.004 –.002 MB88347 +0.20 1.25 –0.10 +.008 .049 –.004 0.10(.004) 5 ...

Page 20

... MB88347 FUJITSU LIMITED All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information and circuit diagrams in this document are presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. Also, ...

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