MicroPower ADC. ADC161S626 Datasheet

ADC161S626 ADC. Datasheet pdf. Equivalent

Part ADC161S626
Description MicroPower ADC
Feature ADC161S626 16-Bit, 50 to 250 kSPS, Differential Input, MicroPower ADC www.DataSheet4U.com May 14, .
Manufacture National Semiconductor
Datasheet
Download ADC161S626 Datasheet

ADC161S626 16-Bit, 50 to 250 kSPS, Differential Input, Micro ADC161S626 Datasheet
ADC161S626 Datasheet
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ADC161S626
www.DataSheet4U.com
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



ADC161S626
Ordering Information
www.DataSheet4U.com
Order Code
Temperature Range
ADC161S626CIMM
−40°C to +85°C
ADC161S626CIMMX
−40°C to +85°C
ADC161S626CIMME
−40°C to +85°C
ADC161S626EB
Description
10-Lead MSOP Package, 1000 Units Tape & Reel
10-Lead MSOP Package, 3500 Units Tape & Reel
10-Lead MSOP Package, 250 Units Tape & Reel
Evaluation Board
Top Mark
X98C
X98C
X98C
Block Diagram
Connection Diagram
30073405
Pin Descriptions
30073402
Pin No.
1
2
3
4
5
6
7
8
9
10
Symbol
VREF
+IN
−IN
GND
GND
CS
DOUT
SCLK
VIO
VA
Description
Voltage Reference
+0.5V < VREF < VA
Non-Inverting Input
Inverting Input
Ground
Ground
Chip Select Bar
Serial Data Output
Serial Clock
Digital Input/Output Power
+2.7V < VREF < +5.5V
Analog Power
+4.5V < VREF < +5.5V
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