MB88111 Fujitsu Media Devices, MB88111 Datasheet

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MB88111

Manufacturer Part Number
MB88111
Description
A/D Converter
Manufacturer
Fujitsu Media Devices
Datasheet
www.DataSheet4U.com
FUJITSU SEMICONDUCTOR
Linear IC Converter
CMOS
A/D Converter
(With 24-Channel Input at 10-bit Resolution)
MB88111
The MB88111 is an analog-to-digital converter that converts its analog input to a 10-bit digital value and outputs it
as serial data.
The MB88111 employs a successive approximation method for A/D conversion. It has 24 input channels to be A/
D converted selectively by setting in an internal register.
Since the MB88111 can input and output 16-bit serial data in synchronization with the clock, it can be easily
connected to the serial I/O port in a 16-bit microcontroller.
DESCRIPTION
• 24-channel analog input
• RC-type successive approximation system with a sample-and-hole circuit
• 10-bit resolution
• Conversion speed within 50 s (at a system clock rate of 1 MHz)
• Digitally converted data output from the MSB
• Digitally converted data output as 16-bit serial data
• Clock-synchronous serial transfer system
• Internal extended serial interface
• Capable of triggering A/D conversion through an external pin
• Capable of input through an 8-channel port
• Serial data output format selectable using an external pin
• 10-bit monotonicity
• No missing code
• Power supply voltage ranging from 3.5 to 5.5 V
PACKAGES
FEATURES
DATA SHEET
44-pin, Plastic QFP
(FPT-44P-M11)
48 pin, Plastic SH-DIP
(DIP-48P-M01)
DS04-13106-2E
(Continued)

Related parts for MB88111

MB88111 Summary of contents

Page 1

... The MB88111 employs a successive approximation method for A/D conversion. It has 24 input channels converted selectively by setting in an internal register. Since the MB88111 can input and output 16-bit serial data in synchronization with the clock, it can be easily connected to the serial I/O port in a 16-bit microcontroller. ...

Page 2

... MB88111 (Continued) • Operating temperature ranging from –40 to +50 C • CMOS process • Package options of 44-pin QFP and 48-pin SH-DIP PIN ASSIGNMENT 33 AN7 34 AN6 35 AN5 36 AN4 37 AN3 38 AN2 39 AN1 40 AN0 41 AVRH (Top view ...

Page 3

... SCK 8 CCLK 9 SIN 10 ESIN 11 SOT 12 ENDC 13 IRQX 14 ATGX 15 CS2X 16 CS1 17 N.C. 18 MOD 19 N.C. 20 TESTI AVRL 23 AGND 24 (Top view) INDEX (DIP-48P-M01) MB88111 48 AN2 47 AN3 46 AN4 45 AN5 44 AN6 43 AN7 42 N.C. 41 AN8 40 AN9 39 AN10 38 AN11 37 AN12 36 AN13 35 AN14 34 AN15 33 AN16 32 AN17 31 AN18 30 N ...

Page 4

... MB88111 PIN DESCRIPTION Pin no. Symbol QFP DIP AN0 to AN15 31, AN16 AN23 12 19 MOD 11 17 CS1 10 16 CS2X 4 10 SIN 6 12 SOT 3 9 CCLK 2 8 SCK 9 15 ATGX 8 14 IRQX 7 13 ...

Page 5

... Analog circuit ground pin — — Reference (high) voltage input pin — — Reference (low) voltage input pin — — Non-connection pin • CMOS input • Hysteresis input • CMOS input • Input with pull-up resistor • CMOS input MB88111 Descriptions Remarks (Continued) 5 ...

Page 6

... MB88111 (Continued) Type Circuit Remarks • Input with pull-up resistor • Hysteresis input • CMOS input • Input with pull-down resistor • CMOS input • Analog input • Analog input • Hysteresis input • CMOS input • CMOS output ...

Page 7

... BLOCK DIAGRAM AN0 Sample-and-hold AN15 AN16 AN23 ATGX SCK ESIN SIN MOD CS2X CS1 RSTX TESTI AV AGND AVRH AVRL CC 10-bit D/A converter circuit Successive approximation register Comparator Control circuit Command register CCLK MB88111 ENDC IRQX Data register Output SOT select circuit SS 7 ...

Page 8

... MB88111 FUNCTIONAL DESCRIPTION 1. SC (Serial Command) Register (Reset status: 0000H) The SC register contains an A/D converter command and an input channel identification. Accessing this register after releasing it from the reset status activates the A/D converter. Note that this register accepts setting even during A/D conversion. Note also that input of a command to the register must take an interval of at least 4 CCLKs after input of the previous command ...

Page 9

... AN11 AN12 AN13 AN14 AN15 ENDC A/D converted pin MB88111 b9 b8 Pin to be selected 0 0 AN16 . . . . . . . . . 1 1 AN23 Undefined (* Port input AN16 AN23 ...

Page 10

... MB88111 3. STC (Standard Conversion) Command Input of the STC command executes A/D conversion of the specified channel once. Impletion of A/D conversion, the ENDC signal rises while the IRQX signal falls. Clock input to the SCK pin after A/D conversion outputs data to the SOT pin. Upon completion of data output, the ENDC signal falls while the IRQX signal rises ...

Page 11

... NOP command input. 16 Cycle SCK SIN AN7 SOT 0000H ENDC IRQX ATGX AN7 conversion A/D NOP AN6 Data 5 Data 5 AN5 conversion AN6 conversion AN8 Data 7 AN7 AN7 conversion AN8 conversion conversion MB88111 NOP STOP 0000H Data 6 NOP STOP 0000H Data 8 11 ...

Page 12

... MB88111 5. Port Input Command The port input command executes I/O evaluation of 8-channel inputs from the AN16 to AN23 pins at a prescribed threshold in 10 clock cycles and outputs the results as port input data. The processing sequence is activated each time port input is selected by the STC command. Port input data is output in the following format: ...

Page 13

... Serial Output Select Function The MB88111 can select the serial data output timing between the rising edge or falling edge of the clock signal according to the setting of the MOD pin. Mode A (MOD = “L”) SCK MSB SOT MSB SIN Serial data is output at the falling edge of the SCK signal. ...

Page 14

... MB88111 ELECTRICAL CHARACTERISTICS 1. Absolute Maximum Ratings Parameter Power supply voltage Input voltage Output voltage Power consumption Storage temperature * : V AV AVRH Recommended Operating Conditions Parameter Power supply voltage Operation temperature * : V AV AVRH Symbol Conditions Based AVRH (Ta = +25 C) ...

Page 15

... — V 0.3 ILS SS V — 0 — 0.8 V IHS CC V — 0.02 V HYS 2.5 mA — –400 MB88111 Value Unit Typ. Max. 5.0 5.5 V 0.5 1.5 mA — –100 –50 A — — 0 — 0 — — — ...

Page 16

... MB88111 (2) Analog section (AV CC Parameter Pin name Resolution Monotonic increase Linearity error Differential linearity error AN0 to AN23 Full-scale transition error Zero-transition error Total error Conversion time Input clock frequency CCLK Supply current AV CC Reference voltage supply AVRH current AVRH Analog reference voltage ...

Page 17

... CCLK = 1 MHz SATH t CCLK = 1 MHz POT t — PTS t — PTH t See “Load conditions.” SHL t See “Load conditions.” SLH t — INF MB88111 Values Unit Min. Max. 800 1200 KHz 400 — ns 400 — ns – 400 1200 KHz 400 — ...

Page 18

... MB88111 AC Test Condition TIMING DIAGRAM 1. Input Clock Timing CCLK SCK Evaluation levels are 80% and 20% of the V 18 Measurement point CLK t CKH CKL Cr t SCK t SKH SKL ...

Page 19

... Serial Data Output Timing Mode A SCK SOT Evaluation levels are 80% and 20% of the V Mode B SCK SOT ENDC Evaluation levels are 80% and 20% of the V t RSH t RSS t COM t t CSS CSH t SIS t ENR . CC t SODA SODB Bf t SOHB . CC MB88111 t SIH ...

Page 20

... MB88111 4. A/D Conversion and Port Input Evaluation STC command (normal mode) SCK SIN b0 ENDC Evaluation levels are 80% and 20% of the V ATC command SCK b0 SIN ATGX ENDC Evaluation levels are 80% and 20% of the STC . ATS ATH t ATC . CC ...

Page 21

... AN16 to AN23 ENDC Evaluation levels are 80% and 20% of the V 5. Extended Serial Interface ESIN SOT Evaluation levels are 80% and 20% of the V 6. Noise Filter t INF Evaluation levels are 80% and 20% of the V PTS t POT . SHL SLH . MB88111 t PTH t INF 21 ...

Page 22

... MB88111 DEFINITIONS OF A/D CONVERTER TERMS • Resolution Analog transition identifiable by the A/D converter • Linearity error Deviation of the straight line drawn between the zero transition point (00 0000 0000 the full-scale transition point (11 1111 1110 teristics • Differential linearity error Deviation from the ideal input voltage required to shift output code by one LSB • ...

Page 23

... V NT value AVRH AVRL ' ' (N–1)+ Differential linearity error of digital output LSB MB88111 Full-scale transition error Ideal characteristics ' V FST (Measured value) Actual conversion characteristics AVRH Analog input ' V – (AVRH–1.5 LSB) FST 1 LSB Differential linearity error Ideal characteristics ...

Page 24

... MB88111 ORDERING INFORMATION Part number MB88111PFQ MB88111P-SH 24 Package 44-pin, Plastic QFP (FPT-44P-M11) 48-pin, Plastic SH-DIP (DIP-48P-M01) Remarks ...

Page 25

... MB88111 Details of "A" part 0.15(.006) 0.20(.008) 0.18(.007)MAX 0.53(.021)MAX Details of "B" part 0~10° 1.40±0.30 (.055±.012) Dimensions in mm (inches). 15.24(.600) TYP 15° ...

Page 26

FUJITSU LIMITED For further information please contact: Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 4-1-1, Kamikodanaka Nakahara-ku, Kawasaki-shi Kanagawa 211-88, Japan Tel: (044) 754-3763 Fax: (044) 754-3329 North and South America FUJITSU MICROELECTRONICS, INC. Semiconductor ...

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