ANALOG-TO-DIGITAL CONVERTER. ADS8343 Datasheet

ADS8343 CONVERTER. Datasheet pdf. Equivalent

ADS8343 Datasheet
Recommendation ADS8343 Datasheet
Part ADS8343
Description 16-Bit/ 4-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER
Feature ADS8343; ADS8343 ADS8 343 SBAS183A – JANUARY 2001 – REVISED OCTOBER 2002 16-Bit, 4-Channel Serial Output Sa.
Manufacture Burr-Brown Corporation
Datasheet
Download ADS8343 Datasheet




Burr-Brown Corporation ADS8343
ADS8343
ADS8343
SBAS183A JANUARY 2001 REVISED OCTOBER 2002
16-Bit, 4-Channel Serial Output Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q BIPOLAR INPUT RANGE
q PIN-FOR-PIN COMPATIBLE WITH THE
ADS7841 AND ADS8341
q SINGLE SUPPLY: 2.7V to 5V
q 4-CHANNEL SINGLE-ENDED OR
2-CHANNEL DIFFERENTIAL INPUT
q UP TO 100kHz CONVERSION RATE
q 86dB SINAD
q SERIAL INTERFACE
q SSOP-16 PACKAGE
APPLICATIONS
q DATA ACQUISITION
q TEST AND MEASUREMENT
q INDUSTRIAL PROCESS CONTROL
q PERSONAL DIGITAL ASSISTANTS
q BATTERY-POWERED SYSTEMS
DESCRIPTION
The ADS8343 is a 4-channel, 16-bit sampling Analog-to-
Digital (A/D) converter with a synchronous serial interface.
Typical power dissipation is 8mW at a 100kHz throughput
rate and a +5V supply. The reference voltage (VREF) can be
varied between 500mV and VCC/2, providing a corresponding
input voltage range of ±VREF. The device includes a shut-
down mode which reduces power dissipation to under 15µW.
The ADS8343 is ensured down to 2.7V operation.
Low power, high speed, and an onboard multiplexer make
the ADS8343 ideal for battery-operated systems such as
personal digital assistants, portable multi-channel data log-
gers, and measurement equipment. The serial interface also
provides low-cost isolation for remote data acquisition. The
ADS8343 is available in an SSOP-16 package and is en-
sured over the –40°C to +85°C temperature range.
CH0
CH1
CH2
CH3
COM
VREF
Four
Channel
Multiplexer
SAR
CDAC
Comparator
Serial
Interface
and
Control
DCLK
CS
SHDN
DIN
DOUT
BUSY
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright © 2001, Texas Instruments Incorporated



Burr-Brown Corporation ADS8343
PACKAGE/ORDERING INFORMATION
PRODUCT
ADS8343E
"
ADS8343EB
"
MAXIMUM
INTEGRAL
LINEARITY
ERROR (LSB)
8
"
6
"
NO
MISSING
CODES
ERROR (LSB)
14
"
15
"
PACKAGE-LEAD
SSOP-16
"
SSOP-16
"
PACKAGE
DESIGNATOR(1)
DBQ
"
DBQ
"
SPECIFIED
TEMPERATURE
RANGE
40°C to +85°C
"
40°C to +85°C
"
NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
ORDERING
NUMBER
TRANSPORT
MEDIA, QUANTITY
ADS8343E
ADS8343E/2K5
ADS8343EB
ADS8343EB/2K5
Rails, 100
Tape and Reel, 2500
Rails, 100
Tape and Reel, 2500
ABSOLUTE MAXIMUM RATINGS(1)
+VCC to GND ........................................................................ 0.3V to +6V
Analog Inputs to GND ............................................ 0.3V to +VCC + 0.3V
Digital Inputs to GND ........................................................... 0.3V to +6V
Power Dissipation .......................................................................... 250mW
Maximum Junction Temperature ................................................... +150°C
Operating Temperature Range ........................................ 40°C to +85°C
Storage Temperature Range ......................................... 65°C to +150°C
Lead Temperature (soldering, 10s) ............................................... +300°C
NOTE: (1) Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
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 its
published specifications.
PIN CONFIGURATIONS
Top View
+VCC 1
CH0 2
CH1 3
CH2 4
CH3 5
COM 6
SHDN 7
VREF 8
ADS8343
SSOP
16 DCLK
15 CS
14 DIN
13 BUSY
12 DOUT
11 GND
10 GND
9 +VCC
PIN DESCRIPTIONS
PIN NAME
1 +VCC
2 CH0
3 CH1
4 CH2
5 CH3
6 COM
7 SHDN
8 VREF
9 +VCC
10 GND
11 GND
12 DOUT
13 BUSY
14 DIN
15 CS
16 DCLK
DESCRIPTION
Power Supply, 2.7V to 5V
Analog Input Channel 0
Analog Input Channel 1
Analog Input Channel 2
Analog Input Channel 3
Common reference for analog inputs. This pin is typically connected to VREF.
Shutdown. When LOW, the device enters a very low power shutdown mode.
Voltage Reference Input. See Electrical Characteristic Table for ranges.
Power Supply, 2.7V to 5V
Ground
Ground
Serial Data Output. Data is shifted on the falling edge of DCLK. This output is high impedance when CS is HIGH.
Busy Output. This output is high impedance when CS is HIGH.
Serial Data Input. If CS is LOW, data is latched on rising edge of DCLK.
Chip Select Input. Controls conversion timing and enables the serial input/output register.
External Clock Input. This clock runs the SAR conversion process and synchronizes serial data I/O. Maximum input clock frequency
equals 2.4MHz to achieve 100kHz sampling rate.
2 ADS8343
www.ti.com
SBAS183A



Burr-Brown Corporation ADS8343
ELECTRICAL CHARACTERISTICS: +5V
At TA = 40°C to +85°C, +VCC = +5V, VREF = +2.5V, fSAMPLE = 100kHz, and fCLK = 24 fSAMPLE = 2.4MHz, unless otherwise noted.
ADS8343E
ADS8343EB
PARAMETER
CONDITIONS
RESOLUTION
ANALOG INPUT
Full-Scale Input Span
Absolute Input Range
Capacitance
Leakage Current
Positive Input-Negative Input
Positive Input
Negative Input
SYSTEM PERFORMANCE
No Missing Codes
Integral Linearity Error
Bipolar Error
Bipolar Error Match
Gain Error
Gain Error Match
Noise
Power-Supply Rejection
SAMPLING DYNAMICS
Conversion Time
Acquisition Time
Throughput Rate
Multiplexer Settling Time
Aperture Delay
Aperture Jitter
Internal Clock Frequency
External Clock Frequency
+4.75V < VCC < 5.25V
SHDN = VDD
Data Transfer Only
DYNAMIC CHARACTERISTICS
Total Harmonic Distortion(2)
Signal-to-(Noise + Distortion)
Spurious-Free Dynamic Range
Channel-to-Channel Isolation
REFERENCE INPUT
Range
Resistance
Input Current
VIN = 5Vp-p at 10kHz
VIN = 5Vp-p at 10kHz
VIN = 5Vp-p at 10kHz
VIN = 5Vp-p at 50kHz
DCLK Static
fSAMPLE = 12.5kHz
DCLK Static
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels
VIH
VIL
VOH
VOL
Data Format
| IIH | +5µA
| IIL | +5µA
IOH = 250µA
IOL = 250µA
POWER-SUPPLY REQUIREMENTS
+VCC
Quiescent Current
Power Dissipation
Specified Performance
fSAMPLE = 10kHz
Power-Down Mode(3, 4), CS = +VCC
TEMPERATURE RANGE
Specified Performance
MIN TYP MAX
16
VREF
0.2
0.2
+VREF
+VCC + 0.2
+VCC + 0.2
25
±1
14
±8
±2
2.3 8.0
±0.05
1.0 4.0
20
3
4.5
0.024
0
500
30
100
2.4
16
100
2.4
2.4
95
86
97
100
0.5 +VCC/2
5
40 100
2.5
0.001
3
CMOS
3.0 5.5
0.3
+0.8
3.5
0.4
Binary Twos Complement
4.75
5.25
1.5 2.0
150
3
7.5 10
40 +85
MIN
15
TYP
MAX
UNITS
Bits
V
V
V
pF
µA
Bits
±6 LSB
±1 mV
✻ ✻ LSB(1)
±0.024
%
✻✻
LSB
µVrms
LSB(1)
Clk Cycles
Clk Cycles
kHz
ns
ns
ps
MHz
MHz
MHz
dB
dB
dB
dB
✻✻
✻✻
V
G
µA
µA
µA
V
V
V
V
V
mA
µA
µA
mW
°C
Same specifications as ADS8343E.
NOTES: (1) LSB means Least Significant Bit. With VREF equal to +2.5V, one LSB is 76µV. (2) First nine harmonics of the test frequency. (3) Auto power-down mode
(PD1 = PD0 = 0) active or SHDN = GND. (4) Power-down after conversion mode with external clock gated HIGH.
ADS8343
SBAS183A
www.ti.com
3







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