converter with a differential input and sample and hold
amplifier and consumes only 250µA of supply cur-
rent. The ADS1286 offers an SPI and SSI compatible
serial interface for communications over a two or three
wire interface. The combination of a serial two wire
interface and micropower consumption makes the
ADS1286 ideal for remote applications and for those
requiring isolation.
The ADS1286 is available in a 8-pin plastic mini DIP
and a 8-lead SOIC.
APPLICATIONS
q
q
q
q
REMOTE DATA ACQUISITION
ISOLATED DATA ACQUISITION
TRANSDUCER INTERFACE
BATTERY OPERATED SYSTEMS
SAR
Control
V
REF
D
OUT
+In
CDAC
–In
S/H Amp
Comparator
Serial
Interface
DCLOCK
CS/SHDN
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Analog Input ....................................................... –0.3V to (+V
CC
+ 300mV)
Logic Input ......................................................... –0.3V to (+V
CC
+ 300mV)
Case Temperature ......................................................................... +100°C
Junction Temperature .................................................................... +150°C
Storage Temperature ..................................................................... +125°C
External Reference Voltage .............................................................. +5.5V
NOTE: (1) Stresses above these ratings may permanently damage the device.
ELECTROSTATIC
DISCHARGE SENSITIVITY
Electrostatic discharge can cause damage ranging from per-
formance degradation to complete device failure. Burr-
Brown Corporation recommends that all integrated circuits
be handled and stored using appropriate ESD protection
methods.
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet
published specifications.
PIN CONFIGURATION
V
REF
+In
–In
GND
1
2
ADS1286
3
4
8-Pin Mini PDIP
8-Lead SOIC
6
5
D
OUT
CS/SHDN
8
7
+V
CC
DCLOCK
PIN ASSIGNMENTS
PIN
1
2
3
4
5
6
7
8
NAME
V
REF
+In
–In
GND
CS/SHDN
D
OUT
DCLOCK
+V
CC
DESCRIPTION
Reference Input.
Non Inverting Input.
Inverting Input. Connect to ground or remote ground sense point.
Ground.
Chip Select when low, Shutdown Mode when high.
The serial output data word is comprised of 12 bits of data. In operation the data is valid on the falling edge of DCLOCK. The
second clock pulse after the falling edge of CS enables the serial output. After one null bit the data is valid for the next 12 edges.
Data Clock synchronizes the serial data transfer and determines conversion speed.
Power Supply.
PACKAGE/ORDERING INFORMATION
INTEGRAL
LINEARITY
±2
±2
±1
±2
±2
±1
±2
±2
±1
±2
±2
±1
TEMPERATURE
RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
PACKAGE
DRAWING
NUMBER
(1)
006
006
006
182
182
182
006
006
006
182
182
182
PRODUCT
ADS1286P
ADS1286PK
ADS1286PL
ADS1286U
ADS1286UK
ADS1286UL
ADS1286PA
ADS1286PB
ADS1286PC
ADS1286UA
ADS1286UB
ADS1286UC
PACKAGE
Plastic DIP
Plastic DIP
Plastic DIP
SOIC
SOIC
SOIC
Plastic DIP
Plastic DIP
Plastic DIP
SOIC
SOIC
SOIC
NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix
C of Burr-Brown IC Data Book.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject
to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not
authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
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