ADC0803 datasheet(3/17 Pages) RENESAS

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ADC0803, ADC0804

FN3094 Rev 4.00

Page 3 of 17

August 2002

Absolute Maximum Ratings

Thermal Information

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5V

Voltage at Any Input. . . . . . . . . . . . . . . . . . . . . . -0.3V to (V+ +0.3V)

Operating Conditions

Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 70oC

Thermal Resistance (Typical, Note 1)

JA (oC/W)

PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum Junction Temperature

Plastic Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150oC

Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC

Maximum Lead Temperature (Soldering, 10s) . . . . . . . . . . . .300oC

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

Electrical Specifications

(Notes 2, 8)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

CONVERTER SPECIFICATIONS

V+ = 5V, TA = 25oC and fCLK = 640kHz, Unless Otherwise Specified

Total Unadjusted Error

ADC0803

VREF/2 Adjusted for Correct Full Scale Reading

1/2

LSB

ADC0804

VREF/2 = 2.500V

1LSB

VREF/2 Input Resistance

Input Resistance at Pin 9

1.0

1.3



Analog Input Voltage Range

(Note 3)

GND-0.05

(V+) + 0.05

DC Common-Mode Rejection

Over Analog Input Voltage Range

1

/16

1

LSB

Power Supply Sensitivity

V+ = 5V

10% Over Allowed Input Voltage

Range

1

/16

1

LSB

CONVERTER SPECIFICATIONS

V+ = 5V, 0oC to 70oC and fCLK = 640kHz, Unless Otherwise Specified

Total Unadjusted Error

ADC0803

VREF/2 Adjusted for Correct Full Scale Reading

1/2

LSB

ADC0804

VREF/2 = 2.500V

1LSB

VREF/2 Input Resistance

Input Resistance at Pin 9

1.0

1.3



Analog Input Voltage Range

(Note 3)

GND-0.05

(V+) + 0.05

DC Common-Mode Rejection

Over Analog Input Voltage Range

1

LSB

Power Supply Sensitivity

V+ = 5V

10% Over Allowed Input Voltage

Range

1

/16

1

LSB

AC TIMING SPECIFICATIONS

V+ = 5V, and TA 25oC, Unless Otherwise Specified

Clock Frequency, fCLK

V+ = 6V (Note 4)

100

640

1280

kHz

V+ = 5V

100

640

800

kHz

Clock Periods per Conversion (Note 5),

tCONV

Clocks/Conv

Conversion Rate In Free-Running Mode, CR INTR tied to WR with CS = 0V, fCLK = 640kHz

8888

Conv/s

Width of WR Input (Start Pulse Width),

tW(WR)I

CS = 0V (Note 6)

100

Access Time (Delay from Falling Edge of

RD to Output Data Valid), tACC

CL = 100pF (Use Bus Driver IC for Larger CL)

135

200

Three-State Control (Delay from Rising

Edge of RD to Hl-Z State), t1H, t0H

CL = 10pF, RL= 10K

(See Three-State Test Circuits)

125

250

Delay from Falling Edge of WR to Reset of

INTR, tWI, tRI

300

450

Input Capacitance of Logic Control Inputs,

CIN

-5

Three-State Output Capacitance (Data

Buffers), COUT

-5

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