ADCS7476AIMF-NOPB Datasheet, PDF (1/29 Pages) Texas Instruments – ADCS7478 1MSPS, 12-/10-/8-Bit A/D Converters in SOT-23 & WSON

ADCS7476, ADCS7477, ADCS7478
www.ti.com
SNAS192F – APRIL 2003 – REVISED MARCH 2013
ADCS7476
ADCS7477
ADCS7478 1MSPS, 12-/10-/8-Bit A/D Converters in SOT-23 & WSON
Check for Samples: ADCS7476, ADCS7477, ADCS7478
FEATURES
1
•2 Variable Power Management
• Packaged in 6-Lead, SOT-23 and WSON
• Power Supply used as Reference
• Single +2.7V to +5.25V Supply Operation
• SPI™/QSPI™/MICROWIRE™/DSP Compatible
APPLICATIONS
• Automotive Navigation
• FA/ATM Equipment
• Portable Systems
• Medical Instruments
• Mobile Communications
• Instrumentation and Control Systems
KEY SPECIFICATIONS
• Resolution with no Missing Codes 12/10/8 bits
• Conversion Rate 1 MSPS
• DNL +0.5, -0.3 LSB (typ)
• INL ± 0.4 LSB (typ)
• Power Consumption
– 3V Supply 2 mW (typ)
– 5V Supply 10 mW (typ)
DESCRIPTION
The ADCS7476, ADCS7477, and ADCS7478 are low
power, monolithic CMOS 12-, 10- and 8-bit analog-to-
digital converters that operate at 1 MSPS. The
ADCS7476/77/78 are drop-in replacements for
Analog Devices' AD7476/77/78. Each device is based
on a successive approximation register architecture
with internal track-and-hold. The serial interface is
compatible with several standards, such as SPI™,
QSPI™, MICROWIRE™, and many common DSP
serial interfaces.
The ADCS7476/77/78 uses the supply voltage as a
reference, enabling the devices to operate with a full-
scale input range of 0 to V_DD. The conversion rate is
determined from the serial clock (SCLK) speed.
These converters offer a shutdown mode, which can
be used to trade throughput for power consumption.
The ADCS7476/77/78 is operated with a single
supply that can range from +2.7V to +5.25V. Normal
power consumption during continuous conversion,
using a +3V or +5V supply, is 2 mW or 10 mW
respectively. The power down feature, which is
enabled by a chip select (CS) pin, reduces the power
consumption to under 5 µW using a +5V supply. All
three converters are available in a 6-lead, SOT-23
package and in a 6-lead WSON, both of which
provide an extremely small footprint for applications
where space is a critical consideration. These
products are designed for operation over the
automotive/extended industrial temperature range of
−40°C to +125°C.
Connection Diagram
Figure 1. 6-Lead SOT-23 or WSON
See DBV or NGF Package
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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