87C196CA87C196CB

8-BIT MODE AD OPERATING CONDITIONS

Symbol

Description

Min

Max

Units

Ambient Temperature

b

40

a

125

C

Digital Supply Voltage

450

550

V

Analog Supply Voltage

450

550

Sample Time

20

m

Conversion Time

12

15

m

Oscillator Frequency

40

200

MHz

NOTES

2 The value of AD

TIME is selected to meet these specifications

Parameter

Min

Max

Units

Resolution

256

256

Level

8

8

Bits

Absolute Error

0

g

10

LSBs

Full Scale Error

g

05

LSBs

Zero Offset Error

g

05

LSBs

Non-Linearity

0

g

10

LSBs

Differential Non-Linearity

b

05

a

05

LSBs

Channel-to-Channel Matching

0

g

10

LSBs

Repeatability

g

025

0

Temperature Coefficients

Offset

0003

Full Scale

0003

Differential Non-Linearity

0003

Off Isolation

b

60

Feedthrough

b

60

b

60

Input Resistance

750

12K

DC Input Leakage

g

10

0

g

15

m

A

Voltage on Analog Input Pin

ANGND b 05

Sampling Capacitor

30

pF

An ‘‘LSB’’ as used here has a value of approximately 20 mV

NOTES

1 These values are expected for most parts at 25 C but are not tested or guaranteed

2 DC to 100 KHz

3 Multiplexer break-before-make is guaranteed

4 Resistance from device pin through internal MUX to sample capacitor

5 Applying voltage beyond these specifications will degrade the accuracy of other channels being converted

6 All conversions performed with processor in IDLE mode

30