FUJITSU SEMICONDUCTOR DATA SHEET DS04-28206-2E ASSP 1 Channel 8-bit A/D Converter MB40528 ■ DESCRIPTION The MB40528 is a full parallel comparison (flash) type 8-bit resolution analog-to-digital converter, designed for various video and image processing applications. The MB40528 has 8-bit resolution 1 channel A/D converter. Input analog data are converted into digital data by the A/D converter in minimum 60 Mega samples per seconds (MSPS). The analog data is provided in a range of DC +3V to +5V (2Vp-p level) and the output digital data in TTL level. The MB40528 is fabricated by the Fujitsu’s advanced bipolar process and housed in a 20-pin plastic DIP/SOP. The MB40528 is suitable for various video and image applications. ■ FEATURES • • • • • • • • • • • ■ Conversion method : Full parallel comparison type 8-bit x 1 channel A/D converter Max. 60 MHz input clock frequency providing 60 MSPS data conversion rate Linearity error : Typical +/-0.15% Analog input voltage range : 3V to 5V (2Vp-p level) Digital input/output voltage level : TTL level On-chip reference voltage generator Low power consumption : Typical 400mW Single +5V power supply Operating temperature range : -20°C to +70°C Fujitsu’s advanced bipolar process PACKAGES 20-pin Plastic DIP 20-pin Plastic SOP (DIP-20P-M01) (FPT-20P-M05) 1 MB40528 ■ PIN ASSIMENT (TOP-VIEW) GND 1 20 GND (LSB) D8 2 19 VCC D7 3 18 VCC D6 4 17 VRB D5 5 16 VINA D4 6 15 VRM D3 7 14 VCC D2 8 13 VCC (MSB) D1 9 12 GND CLK 10 11 GND (DIP-20P-M01) (FPT-20P-M05) 2 MB40528 ■ BLOCK DIAGRAM VCC 13 CLK 10 VINA 16 14 18 19 VCC R1 1 R 2 R 9 D1 (MSB) 8 D2 7 D3 6 D4 5 D5 4 D6 3 D7 2 D8 (LSB) 127 255 to 8 ENCODER R/2 VRM 15 R/2 LATCH & BUFFER 128 R 254 R 255 R2 VRB REFERENCE VOLTAGE GENERATOR 17 0.6 x VCC 1 11 12 20 GND 3 MB40528 ■ PIN DESCRIPTION Symbol Pin No. Type Name & Function VCC 13, 14, 18, 19 - +5 V DC power supply pins. GND 1, 11, 12, 20 - Ground pins. 10 I Clock input pin. The input voltage is a TTL level. 16 I Analog signal input pin. The analog data to be converted is input to this pin. The input voltage range is 3V to 5V (VRB to VCC). O 8-bit resolution A/D converter outputs. The output voltage is a TTL level. Also, D1 pin is an MSB and D8 pin is a LSB. 17 O Reference voltage output pin. This pin outputs 0.6 x VCC [V] (Typ. 3V). An 1µF or more capacitor having superior frequency characteristic should be connected to this pin. The capacitor must be connected near the device. 15 O An intermediate voltage output pin. An intermediate voltage between VCC and VRB (Typ. 4V) is output from this pin. Normally this pin is left open. Power Supply Clock CLK Analog Input VINA Digidal Output D1 9 D2 8 D3 7 D4 6 D5 5 D6 4 D7 3 D8 2 Refernce Voltage Output VRB Others VRM 4 MB40528 ■ ABSOLUTE MAXIMUM RATINGS (GND = 0 V) Parameter Symbol Condition Supply Voltage VCC Analog Input Voltage Rating Unit Min. Max. – -0.5 +7.0 V VINA – -0.5 VCC +0.5 V Digital Input Voltage VIND – -0.5 +7.0 V Storage Temperature 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 (GND = 0 V) Parameter Symbol Condition Supply Voltage VCC Analog Input Voltage Value Unit Min. Typ. Max. – 4.75 5.00 5.25 V VINA – VRB – VCC V Digital “H” Level Input Voltage VIHD – 2.0 – – V Digital “L” Level Input Voltage VILD – – – 0.8 V Digital “H” Level Output Current IOH – -400 – – µA Digital “L” Level Output Current IOL – – – 1.6 mA Clock Frequency fCLK – – – 60 MHz Minimum Clock “H” Level Pulse Width twH – 7.0 – – ns Minimum Clock “L” Level Pulse Width twL – 8.0 – – ns Operating Ambient Temperature Ta – -20 – 70 °C 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 conditionranges. 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 MB40528 ■ ELECTRICAL CHARACTERISTICS 1. DC CHARACTERISTICS (1) Analog Block Parameter Symbol Condition – Value Unit Min. Typ. Max. – – 8 – bit LE DC Accuracy – ±0.15 ±0.3 % Differentioal Linearity Error DLE DC Accuracy – 0.12 – % Analog Input Equivalent Resister RINA – 0.2 1.5 – MΩ Analog Input Capacitance CINA – – 40 – pF Analog “H” Level Input Current IIHA VINA = VCC – – 210 µA Analog “L” Level Input Current IILA VINA = VREF – – 200 µA Reference Voltage VRB – 0.6VCC-0.1 0.6VCC 0.6VCC+0.1 V Supply Current ICC – – 80* 150 mA Parameter Symbol Condition Digital “H” Level Output Voltage VOHD Digital “L” Level Output Voltage Resolution Linearity Error * : VCC = 5.0V, Ta = +25°C (2) Digital Block Value Unit Min. Typ. Max. IOH =-400µA 2.7 – – V VOLD IOL = 1.6mA – – 0.4 V Digital “H” Level Input Voltage VIHD – 2.0 – – V Digital “L” Level Input Voltage VILD – – – 0.8 V Digital “H” Level Input Current IIHD – – – 20 µA Digital “L” Level Input Current IILD – -100 – – µA Symbol Condition Maximum Conversion Rate fs Digital Output Delay Time tpd 2. AC CHARACTERISTICS Parameter 6 Value Unit Min. Typ. Max. – 60 – – MSPS – 5.0 8.5 15 ns MB40528 Figure 1. AC Timing Chart twH twL A/D Converter Input Clock (CLK) Analog Signal Input (VINA) 3V 1.5V 0V Sample N Sample N+1 Sample N+2 tpd Digital Data Output (D1 ~ D8) VOHD 1.5V DATA N-1 DATA N DATA N+1 VOLD 7 MB40528 ■ EQUIVALENT CIRCUITS Figure 2. Analog Input Equivalent Circuit VCC VCC VINA VINA VD RINA CINA IBIAS GND GND x 255 CIRCUITS CINA: Non-linear Emitter-follower Junction Capacitance RINA: Linear Resistance Model for Input Current Transition by Comparator Switching: finite value for VINA < VRB or when CLK = “H” level VRB: Voltage at VRB pin (Not the VRB pin itself) IBIAS: Constant Input Bias Current VD: The base-collector junction diode of emitter-follower transistor. Figure 3. Reference Voltage Circuit VCC 20kΩ Buffer VRB pin IRB 30kΩ GND 8 VRB MB40528 Figure 4. Digital Input Equivalent Circuit VCC 50kΩ 6.5kΩ 3.2kΩ 50kΩ 3.2kΩ VREF = 1.4V Clock Input GND Figure 5. Output Buffer Load Circuit To Test Pin Test Point CL CL = 15pF GND Note : CL includes the parasitic capacitance of JIG. 9 MB40528 LINEARITY ERROR 1. Ideal Conversion Characteristic ■ STEP OUTPUT CODE 255 11111111 254 11111110 253 11111101 129 10000001 128 10000000 127 01111111 2 00000010 1 00000001 0 00000000 VZT ≅ 3.006 V VFT ≅ 4.996 V VINA VZT and VFT are the typical values when VCC = 5 V and VRB = 3 V. 2. Actual Conversion Characteristic STEP OUTPUT CODE 255 11111111 254 11111110 253 11111101 LE253 129 10000001 128 10000000 127 01111111 LE129 LE128 LE127 2 00000010 1 00000001 0 00000000 LEnmax = Linearity Error FS LE2 LE1 VZT VINA VFT NOTE: Refer to “■ELECTRICAL CHARACTERISTICS” for a range of VINA inputs. 10 MB40528 ■ NOTES ON USE 1. Power Supply Patterns of the PCB The power supply wire patterns (VCC and GND patterns) of the PCB should be designed as wide as possible in order to reduce parasitic impedance. Also, the VCC and GND patterns which are connected to the VCC and GND pins of the device must be handled and designed as analog system pattern and so, their circuit patterns must be separate from digital system patterns of other peripheral devices. 2. Switching Noise In order to reduce switching noise as much as possible, high-frequency bypass capacitor must be connected between VCC and GND pins and VRB and GND pins. In this case, the capacitor should be connected to the pins as near as possible. ■ ORDERING INFORMATION Part number Package MB40528P 20-pin Plastic DIP (DIP-20P-M01) MB40528PF 20-pin Plastic SOP (FPT-20P-M05) Remarks 11 MB40528 ■ PACKAGE DIMENSIONS 20-pin Plastic DIP (DIP-20P-M01) +0.20 24.64 –0.30 +.008 .970 –.012 INDEX-1 6.60±0.25 (.260±.010) INDEX-2 0.51(.020)MIN 4.36(.172)MAX 0.25±0.05 (.010±.002) 3.00(.118)MIN 0.46±0.08 (.018±.003) +0.30 0.86 –0 +.012 .034 –0 1.27(.050) MAX C 1994 FUJITSU LIMITED D20005S-3C-3 +0.30 1.27 –0 +.012 .050 –0 7.62(.300) TYP 15°MAX 2.54(.100) TYP Dimensions in mm (inches) (Continued) 12 MB40528 (Continued) 20-pin Plastic SOP (FPT-20P-M05) +0.25 +.010 12.70 –0.20 .500 –.008 2.80(.110)MAX (Mounting height) 0.05(.002)MIN (STAND OFF) 7.60±0.30 (.299±.012) 10.20±0.40 (.402±.016) 9.20±0.30 (.362±.012) 1 PIN INDEX 1.27(.050)TYP 0.45±0.10 (.018±.004) +0.05 Ø0.13(.005) M 0.15 –0.02 0.50±0.20(.020±.008) +.002 .006 –.001 Details of "A" part 0.20(.008) 0.10(.004) 11.43(.450)REF "A" 0.60(.024) 0.18(.007)MAX 0.68(.027)MAX C 1994 FUJITSU LIMITED F20015S-3C-2 Dimensions in mm (inches) 13 MB40528 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. 3545 North First Street, San Jose, CA 95134-1804, USA Tel: +1-408-922-9000 Fax: +1-408-922-9179 Customer Response Center Mon. - Fri.: 7 am - 5 pm (PST) Tel: +1-800-866-8608 Fax: +1-408-922-9179 http://www.fujitsumicro.com/ Europe FUJITSU MICROELECTRONICS EUROPE GmbH Am Siebenstein 6-10, D-63303 Dreieich-Buchschlag, Germany Tel: +49-6103-690-0 Fax: +49-6103-690-122 http://www.fujitsu-fme.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/ F0001 FUJITSU LIMITED Printed in Japan 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. The contents of this document may not be reproduced or copied without the permission of FUJITSU LIMITED. FUJITSU semiconductor devices are intended for use in standard applications (computers, office automation and other office equipments, industrial, communications, and measurement equipments, 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.