TLV2543IDB Datasheet, PDF (1/28 Pages) Texas Instruments – 12-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 ANALOG INPUTS

TLV2543C, TLV2543I
12-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL AND 11 ANALOG INPUTS
SLAS096C – MARCH 1995 – REVISED JUNE 2000
D 12-Bit-Resolution A/D Converter
D 10-µs Conversion Time Over Operating
Temperature Range
D 11 Analog Input Channels
D 3 Built-In Self-Test Modes
D Inherent Sample and Hold Function
D Linearity Error . . . ± 1 LSB Max
D On-Chip System Clock
D End-of-Conversion (EOC) Output
D Unipolar or Bipolar Output Operation
(Signed Binary With Respect to Half of the
Applied Referenced Voltage)
D Programmable MSB or LSB First
D Programmable Power Down
D Programmable Output Data Length
D CMOS Technology
DB, DW, OR N PACKAGE
(TOP VIEW)
AIN0 ₁
AIN1 ₂
AIN2 3
AIN3 4
AIN4 5
AIN5 6
AIN6 7
AIN7 8
AIN8 9
GND 10
20 ^VCC
19 ^EOC
18 I/O CLOCK
17 DATA INPUT
16 DATA OUT
15 CS
14 REF +
13 REF –
12 AIN10
11 AIN9
description
The TLV2543C and TLV2543I are 12-bit, switched-capacitor, successive-approximation, analog-to-digital
converters (ADCs). Each device has three control inputs [chip select (CS), the input-output clock (I/O CLOCK),
and the address input (DATA INPUT)] and is designed for communication with the serial port of a host processor
or peripheral through a serial 3-state output. The device allows high-speed data transfers from the host.
In addition to the high-speed converter and versatile control capability, the device has an on-chip 14-channel
multiplexer that can select any one of 11 inputs or any one of three internal self-test voltages. The
sample-and-hold function is automatic. At the end of conversion, the end-of-conversion (EOC) output goes high
to indicate that conversion is complete. The converter incorporated in the device features differential
high-impedance reference inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry
from logic and supply noise. A switched-capacitor design allows low-error conversion over the full operating
temperature range.
The TLV2543 is available in the DW, DB, and N packages. The TLV2543C is characterized for operation from
0°C to 70°C, and the TLV2543I is characterized for operation from – 40°C to 85°C.
AVAILABLE OPTIONS
PACKAGE
TA
SMALL OUTLINE
PLASTIC DIP
DW ^†
DB†
N
0°C to 70°C
TLV2543CDW
TLV2543CDB
TLV2543CN
– 40°C to 85°C
TLV2543IDW
TLV2543IDB
TLV2543IN
† _{Available in tape and reel and ordered as the TLV2543CDWR, TLV2543CDBLE, TLV2543IDBR, or}
TLV2543IDWR.
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.
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Copyright © 2000, Texas Instruments Incorporated
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