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FUJITSU SEMICONDUCTOR DATA SHEET
DS04-28213-2E
ASSP
CMOS
30 MHz 8-bit A/D Converter
MB40C238
s DESCRIPTION
MB40C238 is a high-speed converter using a fast CMOS technology.
s FEATURES
* * * * * * * * * * * Resolution Linearity error Differential linearity error Maximum conversion rate Power supply voltage Digital input voltage range Digital output voltage range Analog input voltage range Analog input capacitance Power dissipation Additional features : : : : : : : : : : : 8 bit 0.2% (standard) 0.12% (standard) 30 MSPS (minimum) +3.0 V (single) 3 V CMOS level 3 V CMOS level compatible (tristate output) 0 to 2.0 V (1.2 to 1.8 Vp-p) 15 pF (standard) 50 mW (standard: including reference current) VRT voltage adjustment amp (VRT = 1.2 to 2.0 V) Power saving capacity (also reference current set to OFF: 0.5 mW or less) High impedance output : 24-pin SSOP
* Package
s PACKAGE
24-pin Plastic SSOP
(FPT-24P-M03)
MB40C238
s PIN ASSIGNMENT
(TOP VIEW)
AVSS OE VRB AVSS AVDD CE AVSS DVSS (MSB) D7 D6 D5 D4
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
VINA AVSS AVDD VRTC VRT AVDD CLK DVDD D0 (LSB) D1 D2 D3
(FPT-24P-M03)
2
MB40C238
s PIN DESCRIPTION
Pin No. 5, 19, 22 17 1, 4, 7, 23 8 9, 10, 11, 12, 13, 14, 15, 16 18 24 21 20 3 6 2 Symbol AVDD DVDD AVSS DVSS D7 to D0 CLK VINA VRTC VRT VRB CE OE Analog power supply (+3.0 V) Digital power supply (+3.0 V) Analog power supply ground pin (0 V) Digital power supply ground pin (0 V) Digital output pin (D7: MSB, D0: LSB) Clock input pin A/D converter analog input pin Input range is VRB to VRT (0 to 1.5 V: standard) VRT voltage adjustment amp input pin (VRTC: 1.5 V is output when opened.) Reference voltage output pin on top side. The voltage fed to VRTC is output. (1.5 V: standard) Reference voltage input pin on bottom side (0 V: standard) Input pin for toggling standby function. Input high signal brings the ADC and reference voltage circuit. Input pin for toggling output high impedance function. Input high signal brings the ADC output high impedance state. Description
Note: The values in parentheses are standard.
3
MB40C238
s BLOCK DIAGRAM
AVSS OE VRB AVSS AVDD CE AVSS DVSS D7 (MSB) D6 D5 D4
1 2 3 50 k 4 AVSS 5 6 7 8 9 10 11 12 230 VRT adjustment amp. AVDD 50 k
24 23 22 21 20 19 18 17 16 15 14 13
VINA AVSS AVDD VRTC VRT AVDD CLK DVDD D0 (LSB) D1 D2 D3
8 bit 30MSPS ADC
4
MB40C238
s ABSOLUTE MAXIMUM RATINGS
Parameter Power supply voltage Input voltage (analog/digital) Output voltage Storage temperature Symbol AVDD, DVDD CLK, VINA, VRTC, VRB D0 to D7 VRT Tstg Rating Min. -0.3 -0.3 -0.3 -0.3 -55 Max. +7.0 AVDD+0.3 DVDD+0.3 AVDD+0.3 +125 Unit V V V V C
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
s RECOMMENDED OPERATING CONDITIONS
Parameter Symbol AVDD Power supply voltage Analog input voltage Analog reference voltage: T Analog reference voltage: B Analog reference voltage range Digital "H" level input voltage Digital "L" level input voltage Digital input current Clock frequency "H" level minimum clock pulse width "L" level minimum clock pulse width Operating temperature range DVDD | AVDD - DVDD | VINA VRTC VRB VRT - VRB VIHD VILD IID fCLK tW
+
Value Min. 2.70 2.70 0.0 VRB 1.2 0.0 1.2 2.3 -- -- 0.5 16.0 16.0 -20 Typ. 3.00 3.00 -- -- 1.5 -- 1.5 -- -- -- -- -- -- -- Max. 3.60 3.60 0.2 VRT 2.0 0.8 1.8 -- 0.5 5 30 -- -- +75
Unit V V V V V V V V V A MHz ns ns C
tW - Ta
WARNING: The recommended operating conditions are required in order to ensure the normal operation of the semiconductor device. All of the device's electrical characteristics are warranted when the device is operated within these ranges. Always use semiconductor devices within their recommended operating condition ranges. Operation outside these ranges may adversely affect reliability and could result in device failure. No warranty is made with respect to uses, operating conditions, or combinations not represented on the data sheet. Users considering application outside the listed conditions are advised to contact their FUJITSU representatives beforehand.
5
MB40C238
s ELECTRICAL CHARACTERISTICS
1. DC Characteristics in Analog Section
(AVDD = 2.70 V to 3.60 V, DVDD = 2.70 V to 3.60 V, Ta = -20C to +75C) Parameter Resolution Linearity error Differential linearity error Analog input capacity Reference input voltage (Top side) (VRTC opened) Reference output voltage (Top side) Reference current (Bottom side) Analog supply current Digital supply current Standby supply current Conditional DC precision VRT - VRB = 1.5 V Symbol -- LE DLE CINA VRTC VRT IRB AIDD DIDD ISTBA ISTBD Value Min. -- -- -- -- -- -- -- -- -- -- -- Typ. 8 0.20 0.12 15 0.50 x AVDD VRTC 6.5 14.0 3.0 100 1 Max. -- 0.40 0.20 -- -- -- -- 34.0 7.0 -- -- Unit bit % % pF V V mA mA mA A A
2. DC Characteristics in Digital Section
(AVDD = 2.70 V to 3.60 V, DVDD = 2.70 V to 3.60 V, Ta = -20C to +75C) Parameter Digital "H" level output voltage Digital "L" level output voltage Digital "H" level output current Digital "L" level output current Symbol VOHD VOLD IOHD IOLD Value Min. 2.4 -- -400 -- Typ. -- -- -- -- Max. DVDD 0.4 -- 1.6 Unit V V A mA
3. Switching Characteristics
(AVDD = 2.70 V to 3.60 V, DVDD = 2.70 V to 3.60 V, Ta = -20C to +75C) Parameter Maximum conversion rate Digital output delay time Symbol fS tpd Value Min. 30 3 Typ. -- 8 Max. -- 20 Unit MSPS ns
6
MB40C238
s DIAGRAM
t W+ 3V CLK 0V SANPLEN+1
t W-
1.5 V
SANPLEN VINA
tpd VOHD D0 to D7 VOLD DATAN-2 DATAN-1 DATAN 0.5 DVDD
s DIGITAL OUTPUT BUFFER LOAD CIRCUIT
To the measurement point
Measurement point CL = 15 pF DVSS (Note) CL includes a stray capacitance of a probe and a fixture.
s USAGE PRECAUTIONS
* Be sure to ground the pins of AVDD, DVDD, VRT and VRB via high-frequency capacitor. Place the high-frequency capacitor as close as possible to the pin. * You can minimize the power supply current dissipation due to the internal logic indetermination by making the clock to 4CLK or higher.
7
MB40C238
s ORDERING INFORMATION
Part number MB40C238PFV Package 24-pin Plastic SSOP (FPT-24P-M03) Remark
8
MB40C238
s PACKAGE DIMENSION
24-pin Plastic SSOP (FPT-24P-M03)
* 7.750.10(.305.004)
1.25 -0.10 +.008 .049 -.004
+0.20
0.10(.004)
* 5.600.10
INDEX (.220.004)
7.600.20 (.299.008)
6.60(.260) NOM
0.650.12(.0256.0047)
0.22 -0.05 +.004 .009 -.002
+0.10
"A"
0.15 -0.02 +.002 .006 -.001
+0.05
Details of "A" part 0.100.10(.004.004) (STAND OFF)
7.15(.281)REF
0
10
0.500.20 (.020.008)
C
1994 FUJITSU LIMITED F24018S-2C-2
Dimensions in mm (inches).
9
MB40C238
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 211-8588, Japan Tel: 81(44) 754-3763 Fax: 81(44) 754-3329
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, FUJITSU is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams. FUJITSU semiconductor devices are intended for use in standard applications (computers, office automation and other office equipment, industrial, communications, and measurement equipment, personal or household devices, etc.). CAUTION: Customers considering the use of our products in special applications where failure or abnormal operation may directly affect human lives or cause physical injury or property damage, or where extremely high levels of reliability are demanded (such as aerospace systems, atomic energy controls, sea floor repeaters, vehicle operating controls, medical devices for life support, etc.) are requested to consult with FUJITSU sales representatives before such use. The company will not be responsible for damages arising from such use without prior approval. Any semiconductor devices have an inherent chance of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Law of Japan, the prior authorization by Japanese government will be required for export of those products from Japan.
http://www.fujitsu.co.jp/
North and South America FUJITSU MICROELECTRONICS, INC. Semiconductor Division 3545 North First Street San Jose, CA 95134-1804, USA Tel: (408) 922-9000 Fax: (408) 922-9179 Customer Response Center Mon. - Fri.: 7 am - 5 pm (PST) Tel: (800) 866-8608 Fax: (408) 922-9179
http://www.fujitsumicro.com/
Europe FUJITSU MIKROELEKTRONIK GmbH Am Siebenstein 6-10 D-63303 Dreieich-Buchschlag Germany Tel: (06103) 690-0 Fax: (06103) 690-122
http://www.fujitsu-ede.com/
Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE LTD #05-08, 151 Lorong Chuan New Tech Park Singapore 556741 Tel: (65) 281-0770 Fax: (65) 281-0220
http://www.fmap.com.sg/
F9809 (c) FUJITSU LIMITED Printed in Japan
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