ADC084S021CIMM Datasheet, PDF (1/27 Pages) Texas Instruments – ADC084S021 4-Channel, 50 ksps to 200 Ksps, 8-Bit A/D Converter

ADC084S021
www.ti.com
SNAS279E – APRIL 2005 – REVISED MARCH 2013
ADC084S021 4-Channel, 50 ksps to 200 Ksps, 8-Bit A/D Converter
Check for Samples: ADC084S021
FEATURES
1
•2 Specified Over a Range of Sample Rates.
• Four 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: ±0.04 LSB (typ)
• INL: ±0.04 LSB (typ)
• SNR: 49.6 dB (typ)
• Power Consumption
– 3V Supply: 1.6 mW (typ)
– 5V Supply: 5.8 mW (typ)
DESCRIPTION
The ADC084S021 is a low-power, four-channel
CMOS 8-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 ADC084S021 is fully specified over a
sample rate range of 50 ksps to 200 ksps. The
converter is based upon a successive-approximation
register architecture with an internal track-and-hold
circuit. It can be configured to accept up to four input
signals at inputs IN1 through IN4.
The output serial data is straight binary, and is
compatible with several standards, such as SPI™,
QSPI™, MICROWIRE, and many common DSP
serial interfaces.
The ADC084S021 operates with a single supply that
can range from +2.7V to +5.25V. Normal power
consumption using a +3V or +5V supply is 1.6 mW
and 5.8 mW, respectively. The power-down feature
reduces the power consumption to just 0.12 µW using
a +3V supply, or 0.35 µW using a +5V supply.
The ADC084S021 is packaged in a 10-lead VSSOP
package. Operation over the industrial temperature
range of −40°C to +85°C is ensured.
Resolution
12-bit
10-bit
8-bit
Table 1. Pin-Compatible Alternatives by Resolution and Speed
50 to 200 ksps
ADC124S021
ADC104S021
ADC084S021
Specified for Sample Rate Range of:
200 to 500 ksps
ADC124S051
ADC104S051
ADC084S051
500 ksps to 1 Msps
ADC124S101
ADC104S101
ADC084S101
1
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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