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TC500ACPE View Datasheet(PDF) - Microchip Technology

Part NameTC500ACPE Microchip
Microchip Technology Microchip
DescriptionPrecision Analog Front Ends with Dual Slope ADC
TC500ACPE Datasheet PDF : 38 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
TC500/A/510/514
Package Types
16-Pin PDIP/SOIC/CERDIP
CINT 1
16 VDD
VSS 2
15 DGND
CAZ 3
14 CMPTR OUT
BUF 4 TC500/ 13 B
ACOM 5 TC500A 12 A
CREF 6
11 VIN+
CREF+ 7
10 VIN
VREF 8
9 VREF+
24-Pin PDIP/SOIC
VOUT1
CINT 2
CAZ 3
BUF 4
ACOM 5
CREF6
CREF+ 7
VREF 8
VREF+ 9
N/C 10
N/C 11
N/C 12
TC510
24 CAP–
23 DGND
22 CAP+
21 VDD
20 OSC
19 CMPTR OUT
18 A
17 B
16 VIN+
15 VIN
14 N/C
13 N/C
28-Pin PDIP/SOIC
VOUT 1
CINT 2
CAZ 3
BUF 4
ACOM 5
CREF – 6
CREF+ 7
VREF 8
VREF+ 9
CH4– 10
CH3– 11
CH2– 12
CH1– 13
N/C 14
TC514
28 CAP–
27 DGND
26 CAP+
25 VDD
24 OSC
23 CMPTR OUT
22 A
21 B
20 A0
19 A1
18 CH1+
17 CH2+
16 CH3+
15 CH4+
Typical Application
CH1+
CH2+
CH3+
CH4+
CH1-
CH2-
CH3-
CH4-
ACOM
VSS
OSC
A0 A1
DIF.
MUX
(TC514)
CREF
VREF+
CREF+
VREF-
SWR SWR
SWI
SWRI- SWRI-
CREF-
Buffer
-
+
RINT
CAZ
BUF
CINT
CAZ
A
0
0
1
CINT 1
Control Logic
B
Converter Sate
0
Zero Integrator Output
1
Auto-Zero
0
Signal Integrate
1
De-integrate
Integrator
+
TC500
TC500A
CMPTR 1
+
TC510
CMPTR 2 TC514
Level
+
Shift
CMPTR
Output
SWZ SWRI+ SWRI-
SWIZ SWZ
Polarity
Detection
SWI
SW1
DC-TO-DC
Converter
(TC510 & TC514)
Analog
Switch
Control
Signals
VOUT- CAP- CAP+
Phase
Decoding
Logic
DGND
1.0 μF
COUT-
1.0 μF
VSS
(TC500
TC500A)
AB
Control Logic
DS21428E-page 2
© 2008 Microchip Technology Inc.
Direct download click here

General Description:
TheTC500/A/510/514 family are precision analog front ends that implement dual slope A/D converters having a maximum resolution of 17 bits plus sign. As a minimum, each device contains the integrator, zero crossing comparator and processor interface logic. The TC500 is the base (16-bit max) device and requires both positive and negative power supplies. The TC500A is identical to the TC500 with the exception that it has improved linearity, allowing it to operate to a maximum resolution of 17 bits. The TC510 adds an on board negative power supply converter for single supply operation. The TC514 adds both a negative power supply converter and a 4-input differential analog multiplexer.

Features:
• Precision (up to 17 bits) A/D Converter “Front End”
• 3-Pin Control Interface to Microprocessor
• Flexible: User Can Trade-off Conversion Speed for Resolution
• Single-Supply Operation (TC510/TC514)
• 4 Input, Differential Analog MUX (TC514)
• Automatic Input Voltage Polarity Detection
• Low Power Dissipation:
   - (TC500/TC500A): 10 mW
   - (TC510/TC514): 18 mW
• Wide Analog Input Range:
   - ±4.2V (TC500A/TC510)
• Directly Accepts Bipolar and Differential Input Signals

Applications:
• Precision Analog Signal Processor
• Precision Sensor Interface
• High Accuracy DC Measurements

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