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TC510

Precision Analog Front Ends with Dual Slope ADC

Microchip Technology 

TC500/A/510/514

DC CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise specified, TC510/TC514: VDD = +5V, TC500/TC500A: VSS = ±5V.

CAZ = CREF = 0.47 μF.

Parameters

Sym

TA = +25°C

Min. Typ. Max.

TA = 0°C to 70°C

Min.

Typ. Max.

Units

Conditions

Voltage Reference

Range

VREF VSS +1

—

VDD – 1 VSS +1

—

Digital

Comparator Logic 1, VOH

4

—

—

Output High

4

—

Comparator Logic 0, VOL

—

—

0.4

Output Low

—

—

Logic 1, Input High

VIH

3.5

—

—

Voltage

3.5

—

Logic 0, Input Low

VIL

—

—

1

Voltage

—

—

Logic Input Current

IL

Comparator Delay

tD

Multiplexer (TC514 Only)

—

—

—

—

2

—

—

0.3

—

3

Maximum Input

Voltage

-2.5

—

2.5

-2.5

—

Drain/Source ON

RDSON

—

6

10

Resistance

—

—

Power (TC510/TC514 Only)

Supply Current

IS

—

1.8

2.4

Power Dissipation

PD

—

18

—

Positive Supply

VDD

4.5

—

5.5

Operating Voltage

Range

—

—

—

—

4.5

—

Operating Source

ROUT

—

60

85

Resistance

—

—

Oscillator Frequency

—

100

—

—

—

Maximum Current

IOUT

—

—

-10

Out

—

—

Power (TC500/TC500A Only)

Supply Current

IS

—

1

1.5

Power Dissipation

PD

—

10

—

Positive Supply

Operating Range

VDD

4.5

—

7.5

—

—

—

—

4.5

—

Negative Supply

Operating Range

VSS

-4.5

—

-7.5

- 4.5

—

Note 1:

2:

3:

Integrate time ≥ 66 ms, auto-zero time ≥ 66 ms, VINT (peak) ≈ 4V.

End point linearity at ±1/4, ±1/2, ±3/4 F.S. after full-scale adjustment.

Rollover error is related to CINT, CREF, CAZ characteristics.

VDD – 1

—

0.4

—

1

—

2.5

—

3.5

—

5.5

100

—

-10

2.5

—

7.5

-7.5

V

VREF- VREF+

V

ISOURCE = 400 μA

V

ISINK = 2.1 mA

V

V

μA Logic ‘1’ or ‘0’

μs

V VDD = 5V

kΩ VDD = 5V

mA VDD = 5V, A = 1, B = 1

mW VDD = 5V

V

Ω IOUT = 10 mA

kHz Note 1

mA VDD = 5V

mA VS = ±5V, A = B = 1

mW VDD = 5V, VSS = -5V

V

V

DS21428E-page 4

© 2008 Microchip Technology Inc.

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