Features: Serial I/O (MICROWIRE Compatible)
2, 4, or 8 channel differential or single-ended multiplexer
Analog input sample/hold function
Power down mode
ariable resolution and conversion rate
Programmable acquisition time
Variable digital output word length and format
No zero or full scale adjustment required
Fully tested and guaranteed with a 4.096V reference
0V to 5V analog input range with single 5V power supply
No Missing Codes over temperature
Application Medical instruments
Process control systems
Test equipment
Specifications
| Resolution |
12 bits |
| Input Channels |
8 |
| Interface Type |
Microwire (Serial I/O) |
| Differential Input |
Yes |
| INL (LSB) |
+/-1.0 |
| Max KSample Rate |
114 ksps |
| Min Supply Voltage |
4.5 Volt |
| Max Supply Voltage |
5.5 Volt |
| Reference Source |
External |
| Temperature Min |
-40 deg C |
| Temperature Max |
85 deg C |
| Power Down |
Yes |
| Input Sample/Hold |
Yes |
| Special Features |
Undefined |
| Data Converter Type |
ADC |
| Max Sample Rate |
0.114 MSPS |
| View Using Catalog |
Positive Supply Voltage
(V+ = VA+ = VD+) |
6.5V |
Voltage at Inputs and Outputs
except CH0CH7 and COM |
−0.3V to V++0.3V |
Voltage at Analog Inputs
CH0CH7 and COM |
GND −5V to V +5V |
| |VA+−VD+| |
300 mV |
| Input Current at Any Pin (Note 3) |
±30 mA |
| Package Input Current (Note 3) |
±120 mA |
Package Dissipation at
TA = 25˚C (Note 4) |
500 mW |
ESD Susceptability (Note 5)
Human Body Model |
1500V |
| N Packages (10 seconds) |
260˚C |
SO Package (Note 6):
Vapor Phase (60 seconds) |
215˚C |
| Infrared (15 seconds) |
220˚C |
| Storage Temperature |
−65˚C to +150˚C |
DescriptionNOTE: Some of these devices may be obsolete and are described and shown here for reference only. See our web site for product availability.
The ADC12030, and ADC12H030 families are 12-bit plus sign successive approximation Analog-to-Digital Converters with serial I/O and configurable input multiplexers. The ADC12034/ADC12H034 and ADC12038/ADC12H038 have 4 and 8 channel multiplexers, respectively. The differential multiplexer outputs and ADC inputs are available on the MUXOUT1, MUXOUT2, A/DIN1 and A/DIN2 pins. The ADC12030/ADC12H030 has a two channel multiplexer with the multiplexer outputs and ADC inputs internally connected. The ADC12030 family is tested with a 5 MHz clock, while the ADC12H030 family is tested with an 8 MHz clock. On request, these ADCs go through a self calibration process that adjusts linearity, zero and full-scale errors to less than ±1 LSB each.
The analog inputs can be configured to operate in various combinations of single-ended, differential, or pseudo-differential modes. A fully differential unipolar analog input range (0V to +5V) can be accommodated with a single +5V supply. In the differential modes, valid outputs are obtained even when the negative inputs are greater than the positive because of the 12-bit plus sign output data format.
The serial I/O is configured to comply with NSC MICROWIRE. For voltage references see the LM4040, LM4050 or LM4041.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| ADC12038CIWM |
CS150 |
1 |
13275 |
76 |
0 |
932500 |
4 |
264599421 |
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-929: Application Note 929 Microcontroller Interface to the ADC12038 Families |
349 Kbytes |
20-Sep-02 |
Download |
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The ADC12030, and ADC12H030 families are 12-bit plus sign successive approximation A/D converters with serial I/O
and configurable input multiplexers. The ADC12032/ ADC12H032, ADC12034/ADC12H034 and ADC12038/ ADC12H038 have 2, 4 and 8 channel multiplexers, respectively. The differential multiplexer outputs and A/D inputs are available on the MUXOUT1, MUXOUT2, A/DIN1 and A/DIN2 pins. The ADC12030/ADC12H030 has a two channel multiplexer with the multiplexer outputs and A/D inputs internally connected. The ADC12030 family is tested witha5MHz clock, while the ADC12H030 family is tested with an 8 MHz clock. On request, these A/Ds go through a self calibration process that adjusts linearity, zero and full-scale errors to less than ±1 LSB each.
The analog inputs can be configured to operate in various combinations of single-ended, differential, or pseudo-differential modes. A fully differential unipolar analog input range (0V to +5V) can be accommodated with a single +5V supply. In the differential modes, valid outputs are obtained even when the negative inputs are greater than the positive because of the 12-bit plus sign output data format.
The serial I/O is configured to comply with the NSC MICROWIRE™. For voltage references see the LM4040 or LM4041.
ADC12038 Data Sheet
