Features: Easy interface to all microprocessors
Operates ratiometrically or with 5 VDC or analog span adjusted voltage reference
No zero or full-scale adjust required
8-channel multiplexer with address logic
0V to 5V input range with single 5V power supply
Outputs meet TTL voltage level specifications
Standard hermetic or molded 28-pin DIP package
28-pin molded chip carrier package
ADC0808 equivalent to MM74C949
ADC0809 equivalent to MM74C949-1Pinout
Specifications
| Resolution |
8 bits |
| Input Channels |
8 |
| Interface Type |
Parallel |
| Differential Input |
No |
| Max KSample Rate |
10 ksps |
| Min Supply Voltage |
4.5 Volt |
| Max Supply Voltage |
6 Volt |
| Reference Source |
External |
| Temperature Min |
-40 deg C |
| Temperature Max |
85 deg C |
| Power Down |
No |
| Input Sample/Hold |
No |
| Special Features |
Total unadjusted error is +/-1.25 LSB |
| Data Converter Type |
ADC |
| Max Sample Rate |
0.01 MSPS |
| View Using Catalog |
Supply Voltage (VCC) (Note 3)6.5V
Voltage at Any Pin−0.3V to (VCC+0.3V)
Except Control Inputs
Voltage at Control Inputs −0.3V to +15V
(START, OE, CLOCK, ALE, ADD A, ADD B, ADD C)
Storage Temperature Range −65˚C to +150˚C
Package Dissipation at TA=25˚C 875 mW
Lead Temp. (Soldering, 10 seconds)
Dual-In-Line Package (plastic) 260˚CDescriptionThe ADC0808, ADC0809 data acquisition component is a monolithic CMOS device with an 8-bit analog-to-digital converter, 8-channel multiplexer and microprocessor compatible control logic. The 8-bit A/D converter uses successive approximation as the conversion technique. The converter features a high impedance chopper stabilized comparator, a 256R voltage divider with analog switch tree and a successive approximation register. The 8-channel multiplexer can directly access any of 8-single-ended analog signals.
The device eliminates the need for external zero and full-scale adjustments. Easy interfacing to microprocessors is provided by the latched and decoded multiplexer address inputs and latched TTL TRI-STATE outputs.
The design of the ADC0808, ADC0809 has been optimized by incorporating the most desirable aspects of several A/D conversion techniques. The ADC0808, ADC0809 offers high speed, high accuracy, minimal temperature dependence, excellent long-term accuracy and repeatability, and consumes minimal power. These features make this device ideally suited to applications from process and machine control to consumer and automotive applications. For 16-channel multiplexer with common output (sample/hold port) see ADC0816 data sheet. (See AN-247 for more information.)
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| ADC0809CCN |
CMOS |
0 |
18680 |
0 |
0 |
2425000 |
2 |
688100371 |
| ADC0809CCV |
CMOS |
0 |
18680 |
0 |
0 |
2425000 |
2 |
688100371 |
| ADC0809CCVX |
CMOS |
0 |
18680 |
0 |
0 |
2425000 |
2 |
688100371 |
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.For more information on Reliability Metrics, please click here.
Application Notes
| Title |
Size in Kbytes |
Date |
|
| AN-247: Application Note 247 Using the ADC0808/ADC0809 8-Bit µP Compatible A/D Converters with 8-Channel Analog Multiplexer |
547 Kbytes |
3-Oct-02 |
Download |
| AN-280: AN-280 A/D Converters Easily Interface with 70 Series Microprocessors |
134 Kbytes |
4-Oct-04 |
Download |
If you have trouble printing or viewing PDF file(s), see Printing Problems.
|
More Application Notes
| Title |
Size in Kbytes |
Date |
|
| AN-276: Application Note 276 A New, Low-Cost, Sampled-Data, 10-Bit CMOS A/D Converter |
108 Kbytes |
2-May-04 |
Download |
| AN-1525: Application Note 1525 Single Supply Operation of the DAC0800 and DAC0802 |
465 Kbytes |
15-Sep-06 |
Download |
AN-1525 (Chinese): Application Note 1525 Single Supply Operation of the DAC0800 and DAC0802
|
257 Kbytes |
|
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
| AN-281: AN-281 Data Acquisition Using INS8048 |
129 Kbytes |
4-Oct-04 |
Download |
| AN-233: Application Note 233 The A/D Easily Allows Many Unusual Applications |
60 Kbytes |
3-Oct-02 |
Download |
AN-233 (Japanese): Application Note 233 The A/D Easily Allows Many Unusual Applications
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
97 Kbytes |
|
|
| AN-294: Application Note 294 Special Sample and Hold Techniques |
233 Kbytes |
4-Oct-04 |
Download |
| AN-271: Application Note 271 Applying the New CMOS MICRO-DAC |
230 Kbytes |
4-Oct-04 |
Download |
AN-271 (Japanese): Application Note 271 Applying the New CMOS MICRO-DAC
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
342 Kbytes |
|
|
| AN-301: Application Note 301 Signal Conditioning for Sophisticated Transducers |
579 Kbytes |
2-Oct-02 |
Download |
If you have trouble printing or viewing PDF file(s), see Printing Problems.
|
The ADC0809 is designed as one kind of 8-bit P compatible A/D converters with 8-channel multiplexer with an 8-bit analog-to-digital converter, 8-channel multiplexer and microprocessor compatible control logic. The key specifications of this device are:(1)resolution 8 bits; (2)total unadjusted error +/-0.5 LSB and +/-1 LSB; (3)sngle supply 5 VDC; (4)low power 15 mW; (5)conversion time 100 us.
Features of the ADC0809 are:(1)easy interface to all microprocessors; (2)operates ratiometrically or with 5 VDC or analog span adjusted voltage reference; (3)no zero or full-scale adjust required; (4)8-channel multiplexer with address logic; (5)0V to 5V input range with single 5V power supply; (6)outputs meet TTL voltage level specifications; (7)standard hermetic or molded 28-pin DIP package; (8)28-pin molded chip carrier package; (9)ADC0808 equivalent to MM74C949; (10)ADC0809 equivalent to MM74C949-1.
The absolute maximum ratings of the ADC0809 can be summarized as:(1)supply voltage:6.5 V;(2)voltage at any pin except control inputs:-0.3V to (Vcc+0.3V);(3)storage temperature range:-65°C to +150°C;(4)package dissipation at TA=25°C:875 mW;(5)lead Temp. (soldering, 10 seconds) dual-in-line package (plastic):260°C;(6)ESD susceptibility:400 V;(7)lead Temp. dual-in-line package (ceramic):300°C. If you want to know more information such as the electrical characteristics about the ADC0809, please download the datasheet in www.seekic.com or www.chinaicmart.com.
ADC0809 Data Sheet
