8XC51SL datasheet(21/23 Pages) INTEL

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8XC51SLLOW VOLTAGE 8XC51SL

AD CHARACTERISTICS

The 51SL includes a four-channel 8-bit AD con-

verter This AD with eight bits of accuracy uses

successive approximation with a switch capacitor

comparator It is designed to be used for sampling

static analog signals (ie

ideally suited for power

management tasks such as battery voltage monitor-

ing etc) The nominal conversion rate is 20 msat

16 MHz The analog high and low voltage refer-

ences are connected to AVREF and AVGND re-

spectively The four input channels AIN0 – 3 are

connected from the package pins unbuffered to an

analog multiplexer (on-chip) The absolute conver-

sion accuracy is dependent upon the accuracy of

AVREF The specifications given assume adherence

to the operating conditions section of this data sheet

Testing is done at AVREF e 512V and VCC e 50V

for the 8XC51SL and at AVREF e 32V and VCC e

33V for the Low Voltage 8XC51SL

OPERATING CONDITIONS

VCC

8XC51SL

45V to 55V

Low Voltage 8XC51SL

30V to 36V

AVREF

8XC51SL

45V to 55V

Low Voltage 8XC51SL

30V to 36V

VSS AVSS

AIN0 – 3

AVSS to AVREF

0 Cto a70 C Ambient

FOSC

2 MHz to 16 MHz

AD CONVERTER SPECIFICATIONS (Over Operating Conditions)

Parameter

Min

Typ

Max

Units

Resolution

255

256

Levels

Bits

Absolute Error

LSB

Full Scale Error

LSB

Zero Offset Error

LSB

Non-Linearity Error

LSB

Differential Non-Linearity Error

LSB

Channel to Channel Matching

LSB

Repeatability

025

LSB

Temperature Coefficients

Offset

0003

LSB C

Full Scale

0003

LSB C

Differential Non-Linearity

0003

LSB C

Off Isolation

Feedthrough

VCC Power Supply Rejection

Input Resistance

750

12K

Input Capacitance

DC Input Leakage

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