AN8140K PANASONIC
Document overview
- Manufacturer or author: Provided By digicamel.com
- PDF pages: 4
Technical content
The AN8140K is a 10-bit D/A converter for image pro- cessing which has realized low power comsumption by using the Bi-CMOS process. n Features
- 10-bit resolution
- High speed : maximum conversion rate of 50MSPS
- Low power comsumption : 150mW
- TTL compatible input level
- Single 5V power supply
- Built-in reference power supply n Application Field
- Image equipment such as hi-vision device
- OA equipment such as image scanner
- Measuring equipment such as digital oscilloscope AN8140K High-speed Low Power Consumption 10-bit D/A Converter Unit : mm 24-pin Shrunk DIL Plastic Package (SDIP024-P-0300) 7.62–0.25 21.7–0.3 0.3– + 0.2 – 0.05 3 ~15˚ 6.2–0.3 0.5–0.1 0.9–0.251.778 4.7–0.25 3.05–0.25 1.1–0.25 9 14 19 20 21 22 23 24 8 13 13 2 11 12 4 COMP CLK D5 D4 D3 D2 D1 (LSB) AGND DV CC DGND AV CC AV CC VIB NC OUT REFO REFI IREF (MSB) AGND Current Source X – Decoder X– Decoder Latch Latch Latch 1/2 1/4 1/8 Reference Voltage Regulator n Block Diagram
A/D and D/A ConvertersAN8140K Parameter Condition Rating Unit Resolution 10 bit Linearity error R REF = 470W –1.0 LSB Differential linearity error R O = 75W –1.0 LSB Maximum conversion rate V REFO –V REFI = 1.4V 50 MSPS n Main Characteristics (VCC =5.0V, Ta=25˚C) V CC V IN IO V REFI PD Topr Tstg Supply voltage Digital input voltage Analogue output current Reference input voltage Power dissipation Operating ambient temperature Storage temperature V V mA V mW Paremeter Symbol Rating Unit n Absolute Maximum Rating (Ta=25˚C) – 0.3 to +7.0 – 0.3 to DVCC – 0.3 to AVCC 700 –20 to + 70 –55 to +150 V IN= 0V, 5V V IN= 0V, 5V IREFO = 3.0mA Parameter Symbol Rating min typ max Unit n Electrical Characteristics (VCC =5.0V, Ta=25˚C) ICC ILK1 ILK2 V REFO EL ED FC V FS V ZS tST 2.16 4.9 3.8 2.7 –0.5 –0.5 5.0 4.0 –30 –30 3.24 5.1 4.2 mA µA µA V LSB LSB MSPS V V ns Supply current Digital input leak current REFI input leak current Reference output voltage Linearty error Differential linearty error Maximum conversion rate Full-scale output voltage Zero-scale output voltage Settling time R REF = 470W R O = 75W V REF0 –V REFI = 1.4V Parameter Symbol Conditions min typ max Unit Supply voltage V CC 4.75 5.0 5.25 V Regerence voltage vREFO = 2.7V V REFI R O = 75W , RREF = 470W 1.3 V Output load resistance R O 75 W Digital input voltage V IH 2.4 V V IL 0.8 V Clock input pulse width tWH *1 8 *2 ns tWL *1 8 *2 ns Setting-up time t S *1 5 ns Holding time t H *1 1 ns n Recommended Operating Conditions (Ta=25˚C) *1 : Refer to the timing chart. *2 : tWH +tWL ‡20ns
A/D and D/A Converters AN8140K n Pin Descriptions Pin No. Pin nameSymbol Symbol No connection pin Digital GND Analogue GND Analogue GND Analogue output Reference voltage output Reference voltage input Stabilized capacitive pin Compensation capacitive pin Reference current pin Analogue power supply Analogue power supply NC DGND AGND AGND OUT REFO REFI V IB COMP I REF AV CC AV CC Digital power supply Clock input Digital input 1-bit (MSB) Digital input 2-bit Digital input 3-bit Digital input 4-bit Digital input 5-bit Digital input 6-bit Digital input 7-bit Digital input 8-bit Digital input 9-bit Digital input 10-bit (LSB) DV CC CLK Pin No. Pin name CLK Dn – 1DATA OUT tH tWH An – 2 tWL tS Dn Dn+1 tST An – 1 An n Timing Chart
A/D and D/A ConvertersAN8140K n Output Code Step Digital input 0123456789 0000000000 0000000001 0111111111 1000000000 1000000001 1111111110 1111111111 Output voltage V OUT 4.0000 4.0010 4.4995 4.5005 4.5015 4.9990 5.0000 000 001 511 512 513 1022 1023 n Application Circuit AV CC DV CC AGND DGND 75WR o 10kW 5kW RREF 1µF 470W (MSB) (LSB) CLK DIGITAL IN NC DGND AGND AGND OUT REFO REFI VIB COMP IREF AV CC AV CC CLK DV CC LOW PASS FILTER Video Signal OUT