ADC161S626 Datasheet: MicroPower ADC





ADC161S626 MicroPower ADC Datasheet

Part Number ADC161S626
Description MicroPower ADC
Manufacture National Semiconductor
Total Page 22 Pages
PDF Download Download ADC161S626 Datasheet PDF

Features: ADC161S626 16-Bit, 50 to 250 kSPS, Diffe rential Input, MicroPower ADC www.Data Sheet4U.com May 14, 2009 ADC161S626 16-Bit, 50 to 250 kSPS, Differential In put, MicroPower ADC General Description The ADC161S626 is a 16-bit successive- approximation register (SAR) Analog-to- Digital converter (ADC) with a maximum sampling rate of 250 kSPS. The ADC161S6 26 has a minimum signal span accuracy o f ± 0.003% over the temperate range of −40°C to +85°C. The converter feat ures a differential analog input with a n excellent common-mode signal rejectio n ratio of 85 dB, making the ADC161S626 suitable for noisy environments. The A DC161S626 operates with a single analog supply (VA) and a separate digital inp ut/output (VIO) supply. VA can range fr om +4.5V to +5.5V and VIO can range fro m +2.7V to +5.5V. This allows a system designer to maximize performance and mi nimize power consumption by operating t he analog portion of the ADC at a VA of +5V while interfacing with a +3.3V controller. The serial data outp.

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ADC161S626
May 14, 2009
16-Bit, 50 to 250 kSPS, Differential Input, MicroPower ADC
General Description
The ADC161S626 is a 16-bit successive-approximation reg-
ister (SAR) Analog-to-Digital converter (ADC) with a maxi-
mum sampling rate of 250 kSPS. The ADC161S626 has a
minimum signal span accuracy of ± 0.003% over the temper-
ate range of −40°C to +85°C. The converter features a differ-
ential analog input with an excellent common-mode signal
rejection ratio of 85 dB, making the ADC161S626 suitable for
noisy environments.
The ADC161S626 operates with a single analog supply (VA)
and a separate digital input/output (VIO) supply. VA can range
from +4.5V to +5.5V and VIO can range from +2.7V to +5.5V.
This allows a system designer to maximize performance and
minimize power consumption by operating the analog portion
of the ADC at a VA of +5V while interfacing with a +3.3V con-
troller. The serial data output is binary 2's complement and is
SPI™ compatible.
The performance of the ADC161S626 is guaranteed over
temperature at clock rates of 1 MHz to 5 MHz and reference
voltages of +2.5V to +5.5V. The ADC161S626 is available in
a small 10-lead MSOP package. The high accuracy, differ-
ential input, low power consumption, and small size make the
ADC161S626 ideal for direct connection to bridge sensors
and transducers in battery operated systems or remote data
acquisition applications.
Applications
Direct Sensor Interface
I/O Modules
Data Acquisition
Portable Systems
Motor Control
Medical Instruments
Instrumentation and Control Systems
Features
16-bit resolution with no missing codes
Guaranteed performance from 50 to 250 kSPS
±0.003% signal span accuracy
Separate Digital Input/Output Supply
True differential input
External voltage reference range of +0.5V to VA
Zero-Power Track Mode with 0 µsec wake-up delay
Wide input common-mode voltage range of 0V to VA
SPI™/QSPI™/MICROWIRE™ compatible Serial
Interface
Operating temperature range of −40°C to +85°C
Small MSOP-10 package
Key Specifications
Conversion Rate
DNL
INL
Offset Error Temp Drift
Gain Error Temp Drift
SNR
THD
Power Consumption
10 kSPS, 5V
200 kSPS, 5V
250 kSPS, 5V
Power-Down, 5V
50 kSPS to 250 kSPS
+ 0.8 / − 0.5 LSB
± 0.8 LSB
2.5 µV/°C
0.3 ppm/°C
93.2 dBc
− 104 dBc
0.24 mW
5.3 mW
5.8 mW
10 µW
Typical Application
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.
© 2009 National Semiconductor Corporation 300734
30073482
www.national.com

                    
                    






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