ADC122S021CIMM/NOPB ADC122S021CIMMX/NOPB Data Converter IC ADC 2 CH 50-200ksps 12B A/D Cnvtr
dac integrated circuit
,da converter chip
ADC122S021CIMM/NOPB ADC122S021CIMMX/NOPB Data Converter IC ADC 2 CH 50-200ksps 12B A/D Cnvtr
FEATURES
- Specified over a Range of Sample Rates.
-
Two Input Channels
-
Variable Power Management
-
Single Power Supply with 2.7V - 5.25V Range
APPLICATIONS
-
Portable Systems
-
Remote Data Acquisition
-
Instrumentation and Control Systems
KEY SPECIFICATIONS
-
DNL +0.4 / −0.2 LSB (typ)
-
INL ± 0.35 LSB (typ)
-
SNR 72.0 dB (typ)
-
Power Consumption 2.2 mW (typ)
- – 5V Supply 7.9 mW (typ)
DESCRIPTION
The ADC122S021 is a low-power, two-channel CMOS 12-bit analog-to-digital converter with a high- speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC122S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept one or two input signals at inputs IN1 and IN2.
The output serial data is straight binary, and is compatible with several standards, such as SPITM, QSPITM, MICROWIRE, and many common DSP serial interfaces.
The ADC122S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.2 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to just 0.14 μW using a +3V supply, or 0.32 μW using a +5V supply.
The ADC122S021 is packaged in an 8-lead VSSSOP package. Operation over the industrial temperature range of −40°C to +85°C is ensured.
|
Resolution |
Specified for Sample Rate Range of: |
||
|
50 to 200 ksps |
200 to 500 ksps |
500 ksps to 1 Msps |
|
|
12-bit |
ADC122S021 |
ADC122S051 |
ADC122S101 |
|
10-bit |
ADC102S021 |
ADC102S051 |
ADC102S101 |
|
8-bit |
ADC082S021 |
ADC082S051 |
ADC082S101 |
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