A/D Converter. ADC08831 Datasheet

ADC08831 Converter. Datasheet pdf. Equivalent

Part ADC08831
Description 8-Bit Serial I/O CMOS A/D Converter
Feature ADC08831, ADC08832 www.ti.com SNAS015C – SEPTEMBER 1999 – REVISED MARCH 2013 ADC08831 /ADC08832 8.
Manufacture etcTI
Datasheet
Download ADC08831 Datasheet



ADC08831
ADC08831, ADC08832
www.ti.com
SNAS015C – SEPTEMBER 1999 – REVISED MARCH 2013
ADC08831 /ADC08832 8-Bit Serial I/O CMOS A/D Converters with Multiplexer and
Sample/Hold Function
Check for Samples: ADC08831, ADC08832
FEATURES
1
2 3-Wire Serial Digital Data Link Requires Few
I/O Pins
• Analog Input Track/Hold Function
• 2-Channel Input Multiplexer Option with
Address Logic
• Analog Input Voltage Range from GND to VCC
• No Zero or Full Scale Adjustment Required
• TTL/CMOS Input/Output Compatible
• Superior Pin Compatible Replacement for
ADC0831/2
APPLICATIONS
• Digitizing Sensors and Waveforms
• Process Control Monitoring
• Remote Sensing in Noisy Environments
• Instrumentation
• Embedded Systems
DESCRIPTION
The ADC08831/ADC08832 are 8-bit successive
approximation Analog to Digital converters with 3-wire
serial interfaces and a configurable input multiplexer
for 2 channels. The serial I/O will interface to
COPSfamily of micro-controllers, PLD's,
microprocessors, DSP's, or shift registers. The serial
I/O is configured to comply with the MICROWIRE
serial data exchange standard.
To minimize total power consumption, the
ADC08831/ADC08832 automatically go into low
power mode whenever they are not performing
conversions.
A track/hold function allows the analog voltage at the
positive input to vary during the actual A/D
conversion.
The analog inputs can be configured to operate in
various combinations of single-ended, differential, or
pseudo-differential modes. The voltage reference
input can be adjusted to allow encoding of small
analog voltage spans to the full 8-bits of resolution.
KEY SPECIFICATIONS
• Resolution: 8 Bits
• Conversion Time (fC = 2 MHz): 4μs (Max)
• Power Dissipation: 8.5mW (Typ)
• Low Power Mode: 3.0mW (Typ)
• Single Supply: 5VDC
• Total Unadjusted Error: ±1LSB
• No Missing Codes over Temperature
Typical Application
1
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.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2013, Texas Instruments Incorporated



ADC08831
ADC08831, ADC08832
SNAS015C – SEPTEMBER 1999 – REVISED MARCH 2013
Connection Diagram
xxx
www.ti.com
Figure 1. ADC08831
8-Lead SOIC or VSSOP
See D or DGK Packages
Figure 2. ADC08832
8-Lead SOIC or VSSOP
See D or DGK Packages
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings(1)(2)(3)
Supply Voltage (VCC)
Voltage at Inputs and Outputs
Input Current at Any Pin(4)
Package Input Current(4)
ESD Susceptibility(5)
Junction Temperature(6)
Storage Temperature Range
Mounting Temperature
Human Body Model
Machine Model
Lead Temp. (soldering, 10 sec)
Infrared (10 sec)
6.5V
0.3V to VCC + 0.3V
±5 mA
±20 mA
2000V
200V
150°C
65° C to 150°C
260°C
215°C
(1) All voltages are measured with respect to GND = 0 VDC, unless otherwise specified.
(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
(3) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(4) When the input voltage VIN at any pin exceeds the power supplies (VIN < (GND) or VIN > VCC,) the current at that pin should be limited
to 5 mA. The 20 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an
input current of 5 mA to four pins.
(5) Human body model, 100 pF capacitor discharged through a 1.5 kΩ resistor. The machine mode is a 200pF capacitor discharged directly
into each pin.
(6) The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA and the ambient temperature,
TA. The maximum allowable power dissipation at any temperature is PD = (TJMAX TA)/θJA or the number given in the Absolute
Maximum Ratings, whichever is lower.
Operating Ratings(1)(2)
Temperature Range
Supply Voltage
40°C TJ +85°C
4.5 V to 6.0 V
Thermal Resistance (θjA)
VSSOP, 8-pin Surface Mount
SOIC Package, 8-pin Surface Mount
122°C/W
235°C/W
Clock Frequency
10kHz fCLK 2MHz
(1) Operating Ratings indicate conditions for which the device is functional. These ratings do not specify specific performance limits. For
specifications and test conditions, see the Electrical Characteristics. The specifications apply only for the test conditions listed. Some
performance characteristics may degrade when the device is not operated under the listed test conditions.
(2) All voltages are measured with respect to GND = 0 VDC, unless otherwise specified.
2
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