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
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 |
DescriptionThe 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 of ADC12030, and ADC12H030 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 of ADC12030, and ADC12H030 is configured to comply with the NSC MICROWIRE™. For voltage references see the LM4040 or LM4041.
ADC12H034 Data Sheet
