TC850 datasheet(3/30 Pages) MICROCHIP

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 2001-2012 Microchip Technology Inc.

DS21479D-page 3

TC850

1.0

ELECTRICAL SPECIFICATIONS

Absolute Maximum Ratings*

Positive Supply Voltage..........................................+6V

Negative Supply Voltage ....................................... - 9V

Analog Input Voltage (IN+ pr IN-) .............. VDD to VSS

Voltage Reference Input:

(REF1+, REF1–, REF2+).................. VDD to VSS

Logic Input Voltage............. VDD + 0.3V to GND – 0.3V

Current Into Any Pin...........................................10 mA

While Operating .....................................100

A

Ambient Operating Temperature Range

C Device....................................... 0°C to +70°C

I Device......................................-25°C to +85°C

Package Power Dissipation (TA  70°C)

CerDIP .....................................................2.29



Plastic DIP................................................1.23



Plastic PLCC ...........................................1.23



*Stresses

above

those

listed

under

“Absolute

Maximum Ratings” may cause permanent 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.

TABLE 1-1:

TC850 ELECTRICAL SPECIFICATIONS

Electrical Characteristics: VS = ±5V; FCLK = 61.44kHz, VFS = 3.2768V, TA = 25°C, Figure 1-1, unless otherwise specified.

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

Zero Scale Error

±0.25

±0.5

LSB

VIN = 0V

End Point Linearity Error

—

±1

±2

LSB

-VFS  VIN  +VFS

Differential Nonlinearity

—

±0.1

±0.5

LSB

IIN

Input Leakage Current

—

VIN = 0V, TA = 25°C

—

1.1

-25°

 T

A  +85°C

VCMR

Common Mode Voltage Range

VSS + 1.5

—

VSS – 1.5

Over Operating Temperature Range

CMRR

Common Mode Rejection Ratio

—

VIN = 0V, VCM = ±1V

Full Scale Gain Temperature

Coefficient

—

ppm/°C

External Ref. Temperature

Coefficient = 0 ppm/°C

0°C

 T

A  +70°C

Zero Scale Error

Temperature Coefficient

—

0.3

V/°C V

IN = 0V

0°C

 T

A  +70°C

Full Scale Magnitude

Symmetry Error

—

0.5

LSB

VIN = ±3.275V

Input Noise

—

V

P-P

Not Exceeded 95% of Time

IS+

Positive Supply Current

—

3.5

IS–

Negative Supply Current

—

3.5

VOH

Output High Voltage

3.5

4.9

—

IO = 500 A

VOL

Output Low Voltage

—

0.15

0.4

IO = 1.6 mA

IOP

Output Leakage Current

—

0.1

A

Pins 8 -15, High-impedance State

VIH

Input High Voltage

3.5

2.3

—

Note 3

VIL

Input Low Voltage

—

2.1

Note 3

IPU

Input Pull-Up Current

—

A

Pins 2, 3, 4, 6, 7; VIN = 0V

IPD

Input Pull-Down Current

—

A

Pins 1, 5; VIN = 5V

IOSC

Oscillator Output Current

—

140

—

A

Pin 18, VOUT = 2.5V

Note

1: Demand mode, CONT/DEMAND = LOW. Figure 8-2 timing diagram. CL = 100 pF.

2: Continuous mode, CONT/DEMAND = HIGH. Figure 8-4 timing diagram.

3: Digital inputs have CMOS logic levels and internal pull-up/pull-down resistors. For TTL compatibility, external pull-up

resistors to VDD are recommended.

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