TC14433-E View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC14433-E

3-1/2 Digit, Analog-to-Digital Converter

Microchip Technology 

TC14433/A

2.0 TYPICAL PERFORMANCE CURVES

Note:

The graphs and tables provided following this note are a statistical summary based on a limited number of

samples and are provided for informational purposes only. The performance characteristics listed herein

are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified

operating range (e.g., outside specified power supply range) and therefore outside the warranted range.

Note: Unless otherwise specified, VDD = +5V, VEE = -5V, C1 = 0.1 µF, (Mylar), C0 = 0.1 µF, RC = 300 kΩ, R1 = 470 kΩ @ VREF = 2V,

R1 = 27 kΩ @ VREF = 200 mV, TA = +25°C.

Typical Rollover Error vs. Power Supply Skew

4

3

2

1

0

Note: Rollover Error is the Difference in Output

-1

Reading for the same Analog Input Switched

-2

from Positive to Negative.

-3

-4

-3

-2 -1

0

1

2

3

4

(VDD I-IVEE I) - SUPPLY VOLTAGE SKEW (V)

FIGURE 2-1:

Supply Skew

Rollover Error vs. Power

Typical Quiescent Power Supply Current vs.Temp.

4

3

VEE = -8V

VDD = +8V

2

1

VEE = -5V

VDD = +5V

0

-40 -20

0

20 40 60 80 100

TA - TEMPERATURE (°C)

FIGURE 2-4:

Quiescent Power Supply

Current vs. Ambient Temperature.

Typical N-Channel Sink Current at VDD – VSS = 5 Volts

5

4

3

-40°C

+25°C

2

+85°C

1

0

0

1

2

3

4

5

VDS - DRAIN TO SOURCE VOLTAGE (VDC)

FIGURE 2-2:

Sink Current at VDD = 5V.

Typical Clock Frequency vs. Resistor (RC)

Note: ±5% Typical Variation over

Supply Voltage Range

1M

of ±4.5V to ±8V

100k

10k

10kΩ

100kΩ

1MΩ

RC - CLOCK FREQUENCY RESISTOR

CONVERSION RATE = CLOCK FREQUENCY ±1.5%

16,400

MULTIPLEX RATE =

CLOCK FREQUENCY

80

FIGURE 2-3:

Resistor (RC)

Clock Frequency vs.

Typical P-Channel Sink Current at VDD – VSS = 5 Volts

-3

-40°C

-2

+25°C

+85°C

-1

0

0

-1

-2

-3

-4

-5

VDS - DRAIN TO SOURCE VOLTAGE (VDC)

FIGURE 2-5:

Sink Current at VDD = 5V.

Typical % Change fo Clock Frequency vs. Temp.

4

±5V Supply

3

2

1

0

±8V Supply

-1

-2

Normalized at 25°C

-3

-4

-40 -20

0

20 40

60 80

TA - TEMPERATURE (°C)

CONVERSION RATE = CLOCK FREQUENCY ±1.5%

16,400

MULTIPLEX RATE =

CLOCK FREQUENCY

80

FIGURE 2-6:

% Change to Clock

Frequency vs. Ambient Temperature.

© 2008 Microchip Technology Inc.

DS21394D-page 5

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