FUJITSU SEMICONDUCTOR DATA SHEET DS04-28213-2E ASSP CMOS 30 MHz 8-bit A/D Converter MB40C238 ■ DESCRIPTION MB40C238 is a high-speed converter using a fast CMOS technology. ■ 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 • Package : : : : : : : : : : : 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 24-pin Plastic SSOP (FPT-24P-M03) MB40C238 ■ PIN ASSIGNMENT (TOP VIEW) AVSS 1 24 VINA OE 2 23 AVSS VRB 3 22 AVDD AVSS 4 21 VRTC AVDD 5 20 VRT CE 6 19 AVDD AVSS 7 18 CLK DVSS 8 17 DVDD (MSB) D7 9 16 D0 (LSB) D6 10 15 D1 D5 11 14 D2 D4 12 13 D3 (FPT-24P-M03) 2 MB40C238 ■ PIN DESCRIPTION Pin No. Symbol Description 5, 19, 22 AVDD Analog power supply (+3.0 V) 17 DVDD Digital power supply (+3.0 V) 1, 4, 7, 23 AVSS Analog power supply ground pin (0 V) 8 DVSS Digital power supply ground pin (0 V) 9, 10, 11, 12, 13, 14, 15, 16 D7 to D0 Digital output pin (D7: MSB, D0: LSB) 18 CLK Clock input pin 24 VINA A/D converter analog input pin Input range is VRB to VRT (0 to 1.5 V: standard) 21 VRTC VRT voltage adjustment amp input pin (VRTC: 1.5 V is output when opened.) 20 VRT Reference voltage output pin on top side. The voltage fed to VRTC is output. (1.5 V: standard) 3 VRB Reference voltage input pin on bottom side (0 V: standard) 6 CE Input pin for toggling standby function. Input high signal brings the ADC and reference voltage circuit. 2 OE Input pin for toggling output high impedance function. Input high signal brings the ADC output high impedance state. Note: The values in parentheses are standard. 3 MB40C238 ■ BLOCK DIAGRAM AVSS 1 OE 2 VRB 3 AVSS 4 VRT adjustment amp. AVDD 24 VINA 23 AVSS 22 AVDD 21 VRTC 50 kΩ 50 kΩ AVSS AVDD 5 20 VRT CE 6 19 AVDD AVSS 7 18 CLK DVSS 8 17 DVDD D7 (MSB) 9 16 D0 (LSB) 230 Ω 8 bit 30MSPS ADC 4 D6 10 15 D1 D5 11 14 D2 D4 12 13 D3 MB40C238 ■ ABSOLUTE MAXIMUM RATINGS Parameter Symbol Rating Min. Max. Unit Power supply voltage AVDD, DVDD –0.3 +7.0 V Input voltage (analog/digital) CLK, VINA, VRTC, VRB –0.3 AVDD+0.3 V D0 to D7 –0.3 DVDD+0.3 V VRT –0.3 AVDD+0.3 V Tstg –55 +125 °C Output voltage Storage temperature 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 Unit Min. Typ. Max. AVDD 2.70 3.00 3.60 V DVDD 2.70 3.00 3.60 V | AVDD – DVDD | 0.0 — 0.2 V Analog input voltage VINA VRB — VRT V Analog reference voltage: T VRTC 1.2 1.5 2.0 V Analog reference voltage: B VRB 0.0 — 0.8 V VRT – VRB 1.2 1.5 1.8 V Digital “H” level input voltage VIHD 2.3 — — V Digital “L” level input voltage VILD — — 0.5 V Digital input current IID — — 5 µA Clock frequency fCLK 0.5 — 30 MHz “H” level minimum clock pulse width t W + 16.0 — — ns “L” level minimum clock pulse width tW – 16.0 — — ns Operating temperature range Ta –20 — +75 °C Power supply voltage Analog reference voltage range 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 ■ 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 = –20°C to +75°C) Parameter Value Symbol Unit Min. Typ. Max. — — 8 — bit LE — ±0.20 ±0.40 % DLE — ±0.12 ±0.20 % Analog input capacity CINA — 15 — pF Reference input voltage (Top side) (VRTC opened) VRTC — 0.50 × AVDD — V Reference output voltage (Top side) VRT — VRTC — V Reference current (Bottom side) IRB — 6.5 — mA Analog supply current AIDD — 14.0 34.0 mA Digital supply current DIDD — 3.0 7.0 mA ISTBA — 100 — µA ISTBD — 1 — µA Resolution Linearity error Differential linearity error Conditional DC precision VRT – VRB = 1.5 V Standby supply current 2. DC Characteristics in Digital Section (AVDD = 2.70 V to 3.60 V, DVDD = 2.70 V to 3.60 V, Ta = –20°C to +75°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 IOHD –400 — — µA Digital “L” level output current IOLD — — 1.6 mA 3. Switching Characteristics (AVDD = 2.70 V to 3.60 V, DVDD = 2.70 V to 3.60 V, Ta = –20°C to +75°C) Parameter 6 Symbol Value Min. Typ. Max. Unit Maximum conversion rate fS 30 — — MSPS Digital output delay time tpd 3 8 20 ns MB40C238 ■ DIAGRAM t W+ t W– 3V CLK 1.5 V 0V SANPLEN+1 SANPLEN VINA tpd VOHD D0 to D7 DATAN–2 DATAN–1 DATAN 0.5 DVDD VOLD ■ 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. ■ 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 ■ ORDERING INFORMATION Part number MB40C238PFV 8 Package 24-pin Plastic SSOP (FPT-24P-M03) Remark MB40C238 ■ PACKAGE DIMENSION 24-pin Plastic SSOP (FPT-24P-M03) +0.20 * 7.75±0.10(.305±.004) 1.25 –0.10 +.008 .049 –.004 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) 0 10° 0.50±0.20 (.020±.008) 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 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 FUJITSU LIMITED Printed in Japan 10 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.