FRONT ENDS. TC514 Datasheet

TC514 ENDS. Datasheet pdf. Equivalent


Part TC514
Description (TC5xx) PRECISION ANALOG FRONT ENDS
Feature ( DataSheet : www.DataSheet4U.com ) PRECISION ANALOG FRONT ENDS EVALUATION KIT AVAILABLE TC500 TC5.
Manufacture TelCom Semiconductor
Datasheet
Download TC514 Datasheet

( DataSheet : www.DataSheet4U.com ) PRECISION ANALOG FRONT TC514 Datasheet
TC500/A/510/514 Precision Analog Front Ends with Dual Slope TC514 Datasheet
TC514100AJ-10 Datasheet
TC514100AJ-70 Datasheet
TC514100AJ-80 Datasheet
www.DataSheet4U.com www.DataSheet4U.comwww.DataSheet4U.com TC514100AJL-10 Datasheet
www.DataSheet4U.com www.DataSheet4U.comwww.DataSheet4U.com TC514100AJL-70 Datasheet
www.DataSheet4U.com www.DataSheet4U.comwww.DataSheet4U.com TC514100AJL-80 Datasheet
TC514100AP-10 Datasheet
TC514100AP-70 Datasheet
Recommendation Recommendation Datasheet TC514 Datasheet




TC514
( DataSheet : www.DataSheet4U.com )
PRECISION ANALOG FRONT ENDS
PRECISION ANALOG FRONT ENDS
EVALUATION
KIT
AVAILABLE
TTCC55000
TTCC550000A
TTCC55110
TTCC55114
FEATURES
s Precision (up to 17 Bits) A/D Converter "Front End"
s 3-Pin Control Interface to Microprocessor
s Flexible: User Can Trade-Off Conversion Speed
for Resolution
s Single Supply Operation (TC510/514)
s 4 Input, Differential Analog MUX (TC514)
s Automatic Input Voltage Polarity Detection
s Low Power Dissipation ........... TC500/500A: 10mW
TC510/514: 18mW
s Wide Analog Input Range ....... ±4.2V (TC500A/510)
s Directly Accepts Bipolar and Differential Input
Signals
ORDERING INFORMATION
Part No.
TC500ACOE
TC500ACPE
TC500COE
TC500CPE
TC510COG
TC510CPF
TC514COI
TC514CPJ
TC500EV
Package
Temp. Range
16-Pin SOIC
0°C to +70°C
16-Pin Plastic DIP (Narrow) 0°C to +70°C
16-Pin SOIC
0°C to +70°C
16-Pin Plastic DIP (Narrow) 0°C to +70°C
24-Pin SOIC
0°C to +70°C
24-Pin Plastic DIP (300 Mil.) 0°C to +70°C
28-Pin SOIC
0°C to +70°C
28-Pin Plastic DIP (300 Mil.) 0°C to +70°C
Evaluation Kit for TC500/500A/510/514
GENERAL DESCRIPTION
The TC500/500A/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 compara-
tor 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,
except 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.
Each device has the same processor control interface
consisting of 3 wires: control inputs A and B and zero-
crossing comparator output (CMPTR). The processor ma-
nipulates A, B to sequence the TC5xx through four phases
of conversion: Auto Zero, Integrate, Deintegrate and Inte-
grator Zero. During the Auto Zero phase, offset voltages in
the TC5xx are corrected by a closed-loop feedback mecha-
nism. The input voltage is applied to the integrator during the
Integrate phase. This causes an integrator output dv/dt
directly proportional to the magnitude of the input voltage.
The higher the input voltage, the greater the magnitude of
the voltage stored on the integrator during this phase. At the
start of the Deintegrate phase, an external voltage reference
is applied to the integrator, and at the same time, the external
host processor starts its on-board timer. The processor
FUNCTIONAL BLOCK DIAGRAM
CH1 +
CH2 +
CH3 +
CH4 +
CH1
CH2
CH3
CH4
ACOM
VS
OSC
A0 A1
DIF.
MUX
(TC514)
CR+EF
CREF
VR+EF
VR–EF
CR–EF
RINT
CINT
CAZ
BUF CAZ
CINT
A
0
0
1
1
CONTROL LOGIC
B CONVERTER STATE
0 ZERO INTEGRATOR OUTPUT
1 AUTO-ZERO
0 SIGNAL INTEGRATE
1 DEINTEGRATE
SWR SWR
SWI
SWR–I SWR+I
BUFFER
+
INTEGRATOR
CMPTR 1
+
+
TC500
TC500A
TC510
CMPTR 2 TC514
LEVEL
+ SHIFT
CMPTR
OUTPUT
SWZ
SWR+I SWR–I
SWIZ SWZ
POLARITY
DETECTION
SW1
SWI
DC-TO-DC
CONVERTER
(TC510 & TC514)
ANALOG
SWITCH
CONTROL
SIGNALS
VO–UT CAP– CAP+
PHASE
DECODING
LOGIC
DGND
1.0µF
CO–UT
1.0µF
VSS
(TC500
TC500A)
AB
CONTROL LOGIC
TC500/A/510/514-3 10/3/96 TelCom Semiconductor reserves the right to make changes in the circuitry1and specifications of its devices.
www.DataSheet4U.com
www.DataSheet4U.com



TC514
TC500
TC500A
TC510
TC514
PRECISION ANALOG FRONT ENDS
GENERAL DESCRIPTION (Cont.)
maintains this state until a transition occurs on the CMPTR
output, at which time the processor halts its timer. The
resulting timer count is the converted analog data. Integrator
Zero (the final phase of conversion) removes any residue
remaining in the integrator in preparation for the next
conversion.
The TC500/500A/510/514 offer high resolution (up to 17
bits) superior 50Hz/60Hz noise rejection, low power opera-
tion, minimum I/O connections, low input bias currents and
lower cost compared to other converter technologies having
similar conversion speeds.
ABSOLUTE MAXIMUM RATINGS*
TC510/514 Positive Supply Voltage
(VDD to GND) .................................................. +10.5V
TC500/500A Supply Voltage
(VDD to VSS) ....................................................... +18V
TC500/500A Positive Supply Voltage
(VDD to GND) ..................................................... +12V
TC500/500A Negative Supply Voltage
Anal(oVgSSIntpouGt VNoDlt)a.g..e...(.V...+I.N...o..r..V.._I.N..)...........................................V..D..D...t.o–V8SVS
Logic Input Voltage .................. VDD +0.3V to GND – 0.3V
Voltage on OSC ..... – 0.3V to (VDD +0.3V) for VDD < 5.5V
Ambient Operating Temperature Range ...... 0°C to +70°C
Storage Temperature Range ................ – 65°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300°C
* Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under "Absolute Maximum Ratings" may cause perma-
nent damage to the device. These are stress ratings only and functional
operation of the device at these or any other conditions above those
indicated in the operation sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may
affect device reliability.
ELECTRICAL CHARACTERISTICS: TC510/514: VDD = +5V, TC500/500A: VS = ±5V unless otherwise
specified. CAZ = CREF = 0.47 µF
TA = +25°C
TA = 0°C to +70°C
Symbol Parameter
Test Conditions
Min Typ Max Min Typ Max Unit
Analog
ZSE
ENL
NL
ZSTC
SYE
FSTC
IIN
VCMR
VREF
Resolution
Note 1
60
Zero-Scale Error
with Auto Zero Phase
TC500/510/514
TC500A
End Point Linearity
TC500/510/514, Notes 1, 2,
TC500A
Best Case Straight
Line Linearity
TC500/510/514, Notes 1, 2,
TC500A
Zero-Scale
Temperature
Coefficient
Over Operating
Temperature Range
Full-Scale Symmetry
Note 3
Error (Roll-Over Error)
Full-Scale Temperature
Coefficient
Over Operating
Temperature Range
External Reference
TC = 0ppm/°C
Input Current
Common-Mode
Voltage Range
VIN = 0V
VSS +1.5
Integrator Output Swing
Analog Input Signal Range ACOM = GND = 0V
_
Voltage Reference Range VREF
V+REF
VSS +0.9
VSS +1.5
VSS +1
0.005
0.003
0.005
0.003
0.015
0.010
0.008
0.005
— — — µV
— 0.005 0.012 % F.S.
— 0.003 0.009
— 0.015 0.060 % F.S.
— 0.010 0.045 % F.S.
— — — % F.S.
— — — % F.S.
1 2 µV/°C
0.01 —
——
— 0.03 — % F.S.
— 10 — ppm/°C
6—
— — — pA
— VDD – 1.5 VSS +1.5 — VDD – 1.5 V
— VDD – 0.9 VSS +0.9 — VSS +0.9 V
— VDD – 1.5 VSS +1.5 — VSS +1.5 V
— VDD – 1 VSS +1 — VDD – 1 V
2





@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)