ADC128S022
器件描述：8-Channel, 50 kSPS to 200 kSPS, 12-Bit A/D Converter
器件厂商：NSC [National Semiconductor]
文件大小：848.1KB，共18页
Sponsor by e络盟器件资料摘要：
ADC128S022
8-Channel, 50 kSPS to 200 kSPS, 12-Bit A/D Converter
General Description
The ADC128S022 is a low-power, eight-channel CMOS 12-
bit analog-to-digital converter specified for conversion
throughput rates of 50 kSPS to 200 kSPS. The converter is
based on a successive-approximation register architecture
with an internal track-and-hold circuit. It can be configured to
accept up to eight input signals at inputs IN0 through IN7.
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 ADC128S022 may be operated with independent ana-
log and digital supplies. The analog supply (V
A
) can range
from +2.7V to +5.25V, and the digital supply (V
D
) can range
from +2.7V to V
A
. Normal power consumption using a +3V or
+5V supply is 1.2 mW and 7.5 mW, respectively. The power-
down feature reduces the power consumption to 0.06 µW
using a +3V supply and 0.25 µW using a +5V supply.
The ADC128S022 is packaged in a 16-lead TSSOP pack-
age. Operation over the extended industrial temperature
range of −40˚C to +105˚C is guaranteed.
Features
n Eight input channels
n Variable power management
n Independent analog and digital supplies
n SPI™/QSPI™/MICROWIRE™/DSP compatible
n Packaged in 16-lead TSSOP
Key Specifications
n Conversion Rate 50 kSPS to 200 kSPS
n DNL (V
A
=V
D
= 5.0 V) +1.0 / −0.7 LSB (max)
n INL (V
A
=V
D
= 5.0 V) ±1.0 LSB (max)
n Power Consumption
— 3V Supply 1.2 mW (typ)
— 5V Supply 7.5 mW (typ)
Applications
n Automotive Navigation
n Portable Systems
n Medical Instruments
n Mobile Communications
n Instrumentation and Control Systems
Connection Diagram
20162705
Ordering Information
Order Code Temperature Range Description
ADC128S022CIMT −40˚C to +105˚C 16-Lead TSSOP Package
ADC128S022CIMTX −40˚C to +105˚C 16-Lead TSSOP Package, Tape & Reel
ADC128S022EVAL Evaluation Board
TRI-STATE
®
is a trademark of National Semiconductor Corporation.
MICROWIRE™ is a trademark of National Semiconductor Corporation.
QSPI™ and SPI™ are trademarks of Motorola, Inc.
August 2005
ADC128S022
8-Channel,
50
kSPS
to
200
kSPS,
12-Bit
A/D
Converter
© 2005 National Semiconductor Corporation DS201627 www.national.com
8-Channel, 50 kSPS to 200 kSPS, 12-Bit A/D Converter
General Description
The ADC128S022 is a low-power, eight-channel CMOS 12-
bit analog-to-digital converter specified for conversion
throughput rates of 50 kSPS to 200 kSPS. The converter is
based on a successive-approximation register architecture
with an internal track-and-hold circuit. It can be configured to
accept up to eight input signals at inputs IN0 through IN7.
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 ADC128S022 may be operated with independent ana-
log and digital supplies. The analog supply (V
A
) can range
from +2.7V to +5.25V, and the digital supply (V
D
) can range
from +2.7V to V
A
. Normal power consumption using a +3V or
+5V supply is 1.2 mW and 7.5 mW, respectively. The power-
down feature reduces the power consumption to 0.06 µW
using a +3V supply and 0.25 µW using a +5V supply.
The ADC128S022 is packaged in a 16-lead TSSOP pack-
age. Operation over the extended industrial temperature
range of −40˚C to +105˚C is guaranteed.
Features
n Eight input channels
n Variable power management
n Independent analog and digital supplies
n SPI™/QSPI™/MICROWIRE™/DSP compatible
n Packaged in 16-lead TSSOP
Key Specifications
n Conversion Rate 50 kSPS to 200 kSPS
n DNL (V
A
=V
D
= 5.0 V) +1.0 / −0.7 LSB (max)
n INL (V
A
=V
D
= 5.0 V) ±1.0 LSB (max)
n Power Consumption
— 3V Supply 1.2 mW (typ)
— 5V Supply 7.5 mW (typ)
Applications
n Automotive Navigation
n Portable Systems
n Medical Instruments
n Mobile Communications
n Instrumentation and Control Systems
Connection Diagram
20162705
Ordering Information
Order Code Temperature Range Description
ADC128S022CIMT −40˚C to +105˚C 16-Lead TSSOP Package
ADC128S022CIMTX −40˚C to +105˚C 16-Lead TSSOP Package, Tape & Reel
ADC128S022EVAL Evaluation Board
TRI-STATE
®
is a trademark of National Semiconductor Corporation.
MICROWIRE™ is a trademark of National Semiconductor Corporation.
QSPI™ and SPI™ are trademarks of Motorola, Inc.
August 2005
ADC128S022
8-Channel,
50
kSPS
to
200
kSPS,
12-Bit
A/D
Converter
© 2005 National Semiconductor Corporation DS201627 www.national.com