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ADC122S051CIMMX/NOPB
2 Channel, 200 ksps to 500 ksps 12-Bit A/D Converter 8-VSSOP -40 to 85
GND 5
DOUT
DIN
IN1 ADC122S051
IN2
ADC122S051
www.ti.com SNAS257E–NOVEMBER 2004–REVISED MARCH 2013
ADC122S051/ADC122S051Q2 Channel, 200 kspsto 500 ksps 12-Bit A/D Converter
Checkfor Samples: ADC122S051
1FEATURES DESCRIPTIONThe ADC122S051/ADC122S051Qisa low-power,
Specified Overa Rangeof Sample Rates. two-channel CMOS 12-bit analog-to-digital converter
• Two Input Channels with a high-speed serial interface. Unlike the
Variable Power Management conventional practiceof specifying performanceata
single sample rate only, the
• Single Power Supply with 2.7V- 5.25V Range ADC122S051/ADC122S051Qis fully specified overa
• Tested per AEC-Q100 and Qualified for sample rate range of 200 kspsto 500 ksps. The
Automotive Applications converteris based ona successive-approximation
Meets AEC-Q100-011 C2 CDM Classification register architecture with an internal track-and-hold
circuit.It canbe configuredto accept oneor two input
signalsat inputs IN1 and IN2.
APPLICATIONS Portable Systems The output serial data is straight binary, andis
compatible with several standards, such as SPI™,
• Remote Data Acquisition QSPI™, MICROWIRE, and many common DSP
• Instrumentation and Control Systems serial interfaces.
The ADC122S051/ADC122S051Q operates witha
KEY SPECIFICATIONS single supply that can range from +2.7Vto +5.25V.
• DNL: +0.7/ −0.4 LSB (typ) Normal power consumption usinga +3V or +5V
supplyis 3.0 mW and 10 mW, respectively. The
• INL:± 0.50 LSB (typ)power-down feature reduces the power consumption
• SNR: 72.5 dB (typ) to just 0.14µ W usinga +3V supply,or 0.32µ W using
• Power Consumption: a +5V supply.
3V Supply: 3.0 mW (typ) The ADC122S051/ADC122S051Qis packagedin an
– 5V Supply:10 mW (typ) 8-lead VSSOP package. Operation over the industrial
temperature rangeof −40°Cto +85°Cis specified.
Table1. Pin-Compatible Alternatives by Resolution and Speed(1)
