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TC500COE View Datasheet(PDF) - TelCom Semiconductor Inc => Microchip

Part NameTC500COE TelCom-Semiconductor
TelCom Semiconductor Inc => Microchip TelCom-Semiconductor
DescriptionPRECISION ANALOG FRONT ENDS
TC500COE Datasheet PDF : 17 Pages
First Prev 11 12 13 14 15 16 17
TC500
TC500A
TC510
TC514
PRECISION ANALOG FRONT ENDS
TYPICAL PERFORMANCE CHARACTERISTICS OF INTERNAL DC-TO-DC CONVERTER
Output Voltage vs Load Current
5
4
TA = 25°C
V+ = 5V
3
2
1
0
–1
–2
Slope 60
–3
–4
–5
0 10 20 30 40 50 60 70 80
LOAD CURRENT (mA)
Output Voltage vs. Output Current
–0
TA = 25°C
–1
–2
–3
–4
–5
–6
–7
–8
0 2 4 6 8 10 12 14 16 18 20
OUTPUT CURRENT (mA)
Output Ripple vs. Load Current
200
V+ = 5V, TA = 25°C
175 Osc. Freq. = 100kHz
150
125
CAP = 1µF
100
75
CAP = 10µF
50
25
0
0 123 456 78
LOAD CURRENT (mA)
9 10
Oscillator Frequency vs. Capacitance
100
TA = +25°C
V+ = 5V
Output Source Resistance vs. Temperature
100 V+ = 5V
90 IOUT = 10mA
80
70
60
50
40
–50
150
–25
0
25
50
75
100
TEMPERATURE (°C)
Oscillator Frequency vs. Temperature
V+ = 5V
125
10
100
1
1
3-34
10
100
OSCILLATOR CAPACITANCE (pF)
1000
75
50
–50 –25
0
25
50
75
TEMPERATURE (°C)
100 125
TELCOM SEMICONDUCTOR, INC.
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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 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, 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.

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 (TC510/514)
■ 4 Input, Differential Analog MUX (TC514)
■ Automatic Input Voltage Polarity Detection
■ Low Power Dissipation ........... TC500/500A: 10mW
                                          TC510/514: 18mW
■ Wide Analog Input Range ....... ±4.2V (TC500A/510)
■ Directly Accepts Bipolar and Differential Input Signals

 

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