ADC081S021 Datasheet, PDF (1/29 Pages) National Semiconductor (TI) – Single Channel, 50 to 200ksps, 8-Bit A/D Converter

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ADC081S021
SNAS308G – APRIL 2005 – REVISED MAY 2016
ADC081S021 Single-Channel, 50-ksps to 200-ksps, 8-Bit A/D Converter
1 Features
•1 Characterized and Specified Over Multiple
Sample Rates
• 6-Pin WSON and SOT-23 Packages
• Variable Power Management
• Single Power Supply With 2.7-V to 5.25-V Range
• Compatible With SPI™, QSPI™, MICROWIRE™,
and DSP
• DNL: +0.04/–0.03 LSB (Typical)
• INL: +0.04/–0.03 LSB (Typical)
• SNR: 49.6 dB (Typical)
• Power Consumption:
– 3.6-V Supply: 1.3 mW (Typical)
– 5.25-V Supply: 7.7 mW (Typical)
2 Applications
• Portable Systems
• Remote Data Acquisition
• Instrumentation and Control Systems
3 Description
The ADC081S021 device is a low-power, single-
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 ADC081S021 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.
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 ADC081S021 operates with a single supply that
can range from 2.7 V to 5.25 V. Normal power
consumption using a 3.6-V or 5.25-V supply is
1.3 mW and 7.7 mW, respectively. The power-down
feature reduces the power consumption to as low as
2.6 µW using a 5.25-V supply.
The ADC081S021 is packaged in 6-pin WSON and
SOT-23 packages. Operation over the industrial
temperature range of −40°C to 85°C is ensured.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADC081S021
SOT-23 (6)
WSON (6)
2.50 mm × 2.20 mm
1.60 mm × 2.90 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Block Diagram
V_IN
T/H
8-BIT
SUCCESSIVE
APPROXIMATION
ADC
CONTROL
LOGIC
SCLK
CS
SDATA
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.