High-Performance, Stand-Alone ADCs for a Variety of Embedded Systems Applications
8 ADC Converter Function Pack Design Guide
ADC Converter Function Pack Design Guide 9
High-Performance, Stand-Alone ADCs for a Variety of Embedded Systems Applications
Accepts Bipolar Inputs of Up to ±4.2V
The TC5XX family are precision analog front ends that
implement dual-slope ADCs with a maximum resolution of 17
bits plus sign. The TC500 is the base device that requires both
positive and negative power supplies, while the TC510 adds
on-board power supply conversion for single-supply operation.
The conversion speed of the converter is configurable, with
the user being able to trade conversion speed for resolution.
With single and multi-channel devices, the TC5XX is a powerful
family of dual-slope converters. A 50/60 Hz noise rejection,
low-power operation, and minimum I/O connections, make
these devices suitable for a variety of data acquisition systems.
DUAL-SLOPE – 17-BIT PLUS SIGN SERIAL ADC
TC5XX Key Features (Cont.)
n Directly Accepts Bipolar and Differential Input Signals
n Low Power Dissipation:
10 mΩ - (TC500/TC500A), 18 mΩ - (TC510/TC514)
TC5XX Applications:
n Precision Analog Signal Processor
n Precision Sensor Interface
n High-Accuracy DC Measurements
TC5XX Key Features:
n Precision (up to 17 bits) A/D Converter “Front End”
n 3-Pin Control Interface to Microprocessor
n Flexible: User Can Trade-off Conversion Speed
for Resolution
n Single-Supply Operation (TC510/TC514)
n 4 Input, Differential Analog MUX (TC514)
n Automatic Input Voltage Polarity Detection
n Wide Analog Input Range: ±4.2V (TC500A/TC510)
ADC Product Specifications
Part
Supply
Voltage
(V)
Input Voltage
Range
(V)
Resolution
Input
(V)
Sampling
Rate
(Conv/s)
Inptut
Channels
Data
Interface
Temp.
Range
(°C) Features Packages
TC500A ±4.5 to ±7.5 V
SS
+ 1.5V to
V
DD
– 1.5V
Up to
17 bits
4 to 10 1 3-Wire 0 to +70 Differential input range, Programmable
resolution/conversion time
16 PDIP, SOIC, CerDIP
TC510 +4.5 to +5.5
V
SS
+ 1.5V to
V
DD
– 1.5V
Up to
17 bits
4 to 10 1 3-Wire 0 to +70 Differential input range, Programmable
resolution/conversion time, Charge pump
(-V) output pin
24 PDIP, SOIC
TC514 +4.5 to +5.5 V
SS
+ 1.5V to
V
DD
– 1.5V
Up to
17 bits
4 to 10 4 3-Wire 0 to +70 Differential input range, Programmable
resolution/conversion time, Charge pump
(-V) output pin
28 PDIP, 28 SOIC
TC520A +4.5 to +5.5 — — — — Serial Port 0 to +70 Optional serial interface adapter for
TC500/A/510/514
14 PDIP, 16 SOIC
TC530 +4.5 to +5.5 V
SS
+ 1.5V to
V
DD
– 1.5V
Up to
17 bits
3 to 10 1 Serial Port 0 to +70 Differential input range, Programmable
resolution/conversion time, Charge pump
(-V) output pin
28 PDIP, 28 SOIC
TC534 +4.5 to +5.5 V
SS
+ 1.5V to
V
DD
– 1.5V
Up to
17 bits
3 to 10 4 Serial Port 0 to +70 Differential input range, Programmable
resolution/conversion time, Charge pump
(-V) output pin
40 PDIP, 44 PQFP
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