National Semiconductor ADC121S101 ADC101S101 ADC081S101 1MSPS, 12- 10- 8-Bit A D Converters in SOT-23 & LLP Owner's Manual & Specifications
Summary
These low-power CMOS Analog-to-Digital Converters (ADCs) provide high-resolution 12-, 10-, and 8-bit conversion up to 1 MSPS, ideal for demanding embedded systems. Designed with variable power management and compatibility across SPI/QSPI standards, they offer efficient operation down to under 5 µW during shutdown. The accompanying documentation provides detailed technical specifications, including package options (SOT-23 & LLP) and temperature ratings. Perfect for designers in medical devices, portable instrumentation, automotive navigation, and industrial control systems requiring reliable performance in variable environments.
Page 1 Text Content
查询ADC081S101CIMF供应商
January
121S 101/A 101S 101/A 081S 1M ,12-/10-/8-B it /D onverters in T-23 LLP
ADC121S101/ADC101S101/ADC081S101 1MSPS, 12-/10-/8-Bit A/D Converters in SOT-23 LLP General Description Features
The ADC121S101, ADC101S101, and ADC081S101 are low Variable power management power, monolithic CMOS 12-, 10- and 8-bit analog-to-digital Packaged in 6-lead SOT-23 (ADC081S101 also converters that operate at MSPS. Each device is based on available in 6-Lead LLP package)
successive approximation register architecture with inter- Power supply used as reference nal track-and-hold. The serial interface is compatible with
Single +2.7V to +5.25V supply operation
several standards, such as SPI™, QSPI™, MICROWIRE™,
SPI™/QSPI™/MICROWIRE™/DSP compatible
and many common DSP serial interfaces. The ADC121S101/101S101/081S101 uses the supply volt-
Key Specifications
age as reference. This enables the devices to operate with
Resolution with no Missing Codes 12/10/8 bits
full-scale input range of to VDD. The conversion rate is
Conversion Rate MSPS
determined from the serial clock (SCLK) speed. These con-
verters offer shutdown mode, which can be used to trade DNL (ADC121S101) +0.5, -0.3 LSB (typ) throughput for power consumption. The ADC121S101/ INL (ADC121S101) 0.4 LSB (typ)
101S101/081S101 are operated with single supply that Power Consumption can range from +2.7V to +5.25V. Normal power consumption 3V Supply m W (typ) during continuous conversion, using +3V or +5V supply, is 5V Supply m W (typ) m W or m W, respectively. The power down feature, which is enabled by chip select (CS) pin, reduces the
Applications
power consumption to under µW using +5V supply. All
Automotive Navigation
three converters are available in 6-lead SOT-23 package,
FA/ATM Equipment
which provides an extremely small footprint for applications
where space is critical consideration. The ADC081S101 is Portable Systems also available in 6-lead LLP package. These products are Medical Instruments
designed for operation over the industrial temperature range Mobile Communications of −40˚C to +85˚C, with some parameters specified to
Instrumentation and Control Systems
+125˚C for the ADC121S101.
Connection Diagram
MICROWIRE™ is trademark of National Semiconductor Corporation. TRI-STATE® is trademark of National Semiconductor Corporation. QSPI™ and SPI™ are trademarks of Motorola, Inc.
National Semiconductor Corporation DS201102 www.national.com
Page Summary Contents For National Semiconductor ADC121S101 ADC101S101 ADC081S101 1MSPS, 12- 10- 8-Bit A D Converters in SOT-23 & LLP Owner's Manual & Specifications
Manual Details
| Brand | National |
|---|---|
| Pages | 23 |
| File Size | 897.31 KB |
| Published | June 01, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What is the required power supply range and bypass method?
The devices require a quiet +2.7V to +5.25V source, which must be thoroughly bypassed with 0.1 µF and 1 µF capacitors proximate to the VDD pin.
How can I minimize power consumption during standby or low usage?
Use the shutdown mode for reduced throughput/power trade-off, or enable the power down feature via the CS pin to achieve less than 5 µW at +5V.
What serial communication protocols are supported by these converters?
They are compatible with several standards including SPI, QSPI, MICROWIRE, and various common DSP serial interfaces.