Architecture
: SAR
Supply Voltage - Max
: 5.5 V
Mounting Style
: SMD/SMT
Packaging
: Tube
Input Type
: Voltage
Maximum Operating Temperature
: + 85 C
Number of Converters
: 1
SNR
: No
Voltage Reference
: External
Supply Voltage - Min
: 3 V
Interface Type
: Serial (SPI, QSPI, Microwire)
Maximum Power Dissipation
: 500 mW
Package / Case
: SSOP-28
Number of ADC Inputs
: 8 or 4
Conversion Rate
: 114 KSPs
Resolution
: 12 bit + Sign
Pinout
DescriptionThe ADC12138CIMSA is one member of the ADC12138 family which is designed as the 12-bit plus sign successive approximation A/D converter that can be used in (1)Pen-based computers; (2)Digitizers; (3)Global positioning systems applications. This deivce has a 2 and an 8 channel multiplexer, respectively, and two channel multiplexer with the multiplexer outputs and A/D inputs internally connected.
Features of the ADC12138CIMSA are:(1)Serial I/O (MICROWIRE, SPI and QSPI Compatible); (2)2 or 8 channel differential or single-ended multiplexer; (3)Analog input sample/hold function; (4)Power down mode; (5)Programmable acquisition time; (6)Variable digital output word length and format; (7)No zero or full scale adjustment required; (8)0V to 5V analog input range with single 5V power supply.
The absolute maximum ratings of the ADC12138CIMSA can be summarized as:(1)Positive Supply Voltage: 6.5 V;(2)Voltage at Inputs and Outputs: -0.3V to V+ +0.3V;(3)Voltage at Analog Inputs: GND-5V to V+ +5V;(4)Input Current at Any Pin: ±30 mA;(5)Package Input Current: ±120 mA;(6)ESD Susceptability Human Body Model: 1500 V;(7)Soldering Information N Packages (10 seconds): 260°C;(8)Storage Temperature: -65°C to +150°C.
The electrical characteristics of this device ADC12138CIMSA can be summarized as:(1)Positive Integral Linearity Error: ±1/2 LSB (max);(2)Negative Integral Linearity Error: ±1/2 LSB (max);(3)Differential Non-Linearity: ±1.5 LSB (max);(4)Reference Input Capacitance: 85 pF;(5)A/DIN1 and A/DIN2 Analog Input Capacitance: 75 pF;(6)A/DIN1 and A/DIN2 Analog Input Leakage Current: ±0.1 A;(7)MUX Output Capacitance: 20 pF;(8)Channel to Channel Crosstalk: -72 dB;(9)MUX Bandwidth: 90 kHz. If you want to know more information about the ADC12138CIMSA, please download the datasheet in www.seekic.com or www.chinaicmart.com .
ADC12138CIMSA Data Sheet
