FUJITSU SEMICONDUCTOR DATA SHEET DS04-28208-2E ASSP for Image Processing CMOS A/D Converter (1-channel, 8-bit, 18MHz) MB40C368 ■ DESCRIPTION The MB40C368 is a high-speed A/D converter using high-speed CMOS process technology. ■ FEATURES • • • • • • • • • • • Resolution: 8 bits Linearity error: ±0.20% (Typ.) Maximum conversion rate: 18 MSPS (Min.) Power supply voltage: Analog section +3.0 V Digital section +3.0 V Digital input voltage range: TTL level Digital output voltage range: CMOS level compatible Analog input voltage range: 0.5 to 3 V (with 2 Vp-p) Analog input capacity: 15 pF (Typ.) Power consumption: 14 mW (Typical: @fCLK = 18 MHz) Additional function: Reference voltage generator circuit: VREFB = 1 V Package options: SOP24, SSOP24 ■ PACKAGES 24-pin, Plastic SOP (FPT-24P-M01) 24-pin, Plastic SSOP (FPT-24P-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. MB40C368 ■ PIN ASSIGNMENT (TOP VIEW) AVDD 1 24 AVSS AVDD 2 23 VRB AVSS 3 22 VREFB (LSB) D8 4 21 VINA D7 5 20 N.C. D6 6 19 VRT D5 7 18 AVDD D4 8 17 AVSS D3 9 16 AVDD D2 10 15 AVSS (MSB) D1 11 14 CLK DVSS 12 13 DVDD (FPT-24P-M01) (FPT-24P-M03) ■ PIN DESCRIPTION Pin No. Pin name Functions 1, 2, 16, 18 AVDD Analog power supply pins (+3 V) 13 DVDD Digital power supply pin (+3 V) 3, 15, 17, 24 AVSS Analog power ground pins (0 V) 12 DVSS Digital power ground pin (0 V) 4 to 11 D1 to D8 Digital output pins. D1: MSB, D8: LSB 14 CLK Clock input pin 21 VINA Analog input pin. Input range: VRB to VRT (2 Vp-p between 0.5 to 3 V) 19 VRT Reference voltage input pin (3 V) 23 VRB Reference voltage input pin (1 V) 22 VREFB Reference voltage output pin. When connected to VRB, the pin generates 0.33 × AVDD (1 V). 20 N. C. No connection pin. Should be connected to AVDD. Values within ( ) are typical values. ■ NOTES ON USE • Be sure to bypass the AVDD, DVDD, VRT and VRB pins to the ground using a high-frequency capacitor. The high-frequency capacitor should be connected as near the pin as possible. • Provide four clocks or more immediately after the power up to prevent current dissipation due to the indeterminate internal logic. 2 MB40C368 ■ ABSOLUTE MAXIMUM RATINGS (See WARNING) Parameter Power supply voltage Input voltage Output voltage Storage temperature Rating Symbol Unit Min. Max. AVDD, DVDD –0.3 0.7 V CLK, VINA VRT, VRB –0.3 AVDD+0.3 V D1 to D8 –0.3 DVDD+0.3 V Tstg –55 +125 °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. ■ RECOMMENDED OPERATING CONDITIONS Parameter Symbol Value Min. Typ. Max. Unit Power supply voltage AVDD, DVDD 2.70 3.00 3.60 V Analog input voltage VINA VRB – VRT V Analog reference voltage: T VRT – – AVDD V Analog reference voltage: B VRB 0.50 – – V VRT–VRB 1.90 2.00 2.10 V Digital "H” level input voltage VIHD 2.4 – – V Digital “L” level input voltage VILD – – 0.8 V Digital input current IID – – 5 µA Clock frequency fCLK 0.1 – 18 MHz Minimum “H” level clock pulse width tw+ 22.5 – – ns Minimum “L” level clock pulse width tw– 22.5 – – ns Operating temperature range Ta –20 – 70 °C Analog reference voltage range WARNING: Recommended operating conditions are normal operating ranges for the semiconductor device. All the device’s electrical characteristics are warranted when operated within these ranges. Always use semiconductor devices within the recommended operating conditions. 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 representative beforehand. 3 MB40C368 ■ ELECTRICAL CHARACTERISTICS DC Characteristics (1) Analog section (AVDD = DVDD = 2.70 V to +3.60 V, Ta = –20°C to +70°C) Parameter Value Symbol Unit Min. Typ. Max. – – 8 – bit LE – ±0.20 ±0.30 % DLE – ±0.12 ±0.20 % Analog input capacity CINA – 15 – pF Reference voltage VREFB – 0.33 × AVDD – V Reference current IRB –16.0 –8.0 –2.0 mA Analog power supply current AIDD – 2.2 10.0 mA Digital power supply current DIDD – 2.5 6.0 mA Resolution Linearity error Differential linearity error DC precision (2) Digital section (AVDD = DVDD = 2.70 V to +3.60 V, Ta = –20°C to +70°C) Parameter Symbol Value Min. Typ. Max. Unit Digital “H” level output voltage VOHD 2.4 – DVDD V Digital “L” level output voltage VOLD – – 0.4 V Digital “H” level output current IOH –400 – – µA Digital “L” level output current IOL – – 1.6 mA (3) Switching section (AVDD = DVDD = 2.70 V to +3.60 V, Ta = –20°C to +70°C) Parameter Maximum conversion rate Digital output delay time 4 Symbol Value Unit Min. Typ. Max. fs 18 – – MSPS tpd 0 6 25 ns MB40C368 ■ EQUIVALENT CIRCUIT • Clock input AVDD CLK AVSS • Analog input AVDD VINA AVSS • Reference voltage input AVDD VRT AVDD VRB AVSS AVSS • Reference voltage output AVDD VREFB AVSS • Digital output DVDD D1 to D8 DVSS 5 MB40C368 ■ TIMING CHART tw+ tw– 3V 1.5 V CLK 0V SAMPLEN SAMPLEN+1 VINA tpd D1 to D8 VOH DATAN–2 DATAN–1 VOL ■ DIGITAL OUTPUT BUFFER LOAD CIRCUIT To measurement pin Measurement point CL = 15 pF DVSS (Note) CL value includes the floating capacitance of the jig and probe. 6 DATAN 0.5 DVDD MB40C368 ■ ORDERING INFORMATION Part number Package MB40C368PF 24-pin, Plastic SOP (FPT-24P-M01) MB40C368PFV 24-pin, Plastic SSOP (FPT-24P-M03) Remarks 7 MB40C368 ■ PACKAGE DIMENSIONS 24-pin, Plastic SOP (FPT-24P-M01) 2.25(.089)MAX +0.25 (MOUNTING HEIGHT) +.010 15.24 –0.20 .600 –.008 0.05(.002)MIN (STAND OFF) 5.30±0.30 (.209±.012) INDEX 1.27(.050) TYP 0.45±0.10 (.018±.004) +0.40 6.80 –0.20 +.016 .268 –.008 7.80±0.40 (.307±.016) +0.05 Ø0.13(.005) M 0.15 –0.02 +.002 .006 –.001 0.50±0.20 (.020±.008) Details of "A" part 0.20(.008) "A" 0.10(.004) 13.97(.550)REF 0.50(.020) 0.18(.007)MAX 0.68(.027)MAX C 1994 FUJITSU LIMITED F24007S-3C-4 Dimensions in mm (inches). (Continued) 8 MB40C368 (Continued) 24-pin, Plastic SSOP (FPT-24P-M03) *: These dimensions do not include resin protrusion. +0.20 * 7.75±0.10(.305±.004) 1.25 –0.10 +.008 .049 –.004 (MOUNTING HEIGHT) 0.10(.004) * 5.60±0.10 INDEX 0.65±0.12(.0256±.0047) 7.15(.281)REF C 1994 FUJITSU LIMITED F24018S-2C-2 (.220±.004) +0.10 0.22 –0.05 +.004 .009 –.002 7.60±0.20 (.299±.008) "A" 6.60(.260) NOM +0.05 0.15 –0.02 +.002 .006 –.001 Details of "A" part 0.10±0.10(.004±.004) (STAND OFF) 00to 10° 10° 0.50±0.20 (.020±.008) Dimensions in mm (inches). 9 MB40C368 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 Division 3545 North First Street San Jose, CA 95134-1804, U.S.A. Tel: (408) 922-9000 Fax: (408) 432-9044/9045 Europe FUJITSU MIKROELEKTRONIK GmbH Am Siebenstein 6-10 63303 Dreieich-Buchschlag Germany Tel: (06103) 690-0 Fax: (06103) 690-122 Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE. LIMITED #05-08, 151 Lorong Chuan New Tech Park Singapore 556741 Tel: (65) 281-0770 Fax: (65) 281-0220 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 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 inherently a certain rate 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 Control Law of Japan, the prior authorization by Japanese government should be required for export of those products from Japan. F9703 FUJITSU LIMITED Printed in Japan 12 *DS04-28208