1FEATURES

2• Specified Over a Range of Sample Rates

• 6-lead WSON and SOT-23 Packages

• Variable Power Management

• Single Power Supply with 2.7V - 5.25V Range

• SPI™/QSPI™/MICROWIRE/DSP Compatible

KEY SPECIFICATIONS

• DNL: +0.06 / -0.045 LSB (Typ)

• INL: +0.06 / -0.05 LSB (Typ)

• SNR: 49.6 dB (Typ)

• Power Consumption:

– 3.6V Supply: 1.6 mW (Typ)

– 5.25V Supply: 8.5 mW (Typ)

APPLICATIONS

• Portable Systems

• Remote Data Acquisition

• Instrumentation and Control Systems

DESCRIPTION

The ADC081S051 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 ADC081S051 is fully specified over a

sample rate range of 200 ksps to 500 ksps. The converter is based on 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 ADC081S051 operates with a single supply that

can range from +2.7V to +5.25V. Normal power

consumption using a +3.6V or +5.25V supply is 1.6

mW and 8.5 mW, respectively. The power-down

feature reduces the power consumption to as low as

2.6 μW using a +5.25V supply.

The ADC081S051 is packaged in 6-lead WSON and

SOT-23 packages. Operation over the industrial

temperature range of −40°C to +85°C is ensured.