ADC0803 datasheet(9/18 Pages) PHILIPS

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Philips Semiconductors

Product data

ADC0803/0804

CMOS 8-bit A/D converters

2002 Oct 17

TYPICAL PERFORMANCE CHARACTERISTICS

fCLK = 1 MHz

CS = H

3.2

3.0

2.8

2.6

2.4

2.2

2.0

1.8

–50 –25

100 125

AMBIENT TEMPERATURE (

°C)

10.0

8.0

6.0

4.0

2.0

1.0

0.8

0.6

0.4

0.2

0.1

40 60 80100

200

400 600 1000

CLOCK CAP (pF)

MAX.

TYP.

MIN.

–1

–2

–3

–4

–5

APPLIED VREF/2 (V)

1.70

1.60

1.50

1.40

1.30

4.50

4.75

5.00

5.25

5.50

–55

°C

+25

°C

+125

°C

VCC SUPPLY VOLTAGE (V)

–55

°C ≤ Tamb ≤ 125 °C

VT+

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

4.50

4.75

5.00

5.25

5.50

VCC SUPPLY VOLTAGE (V)

–50

–25

100

125

AMBIENT TEMPERATURE (oC)

VCC = 5.0 V

VO = 2.5 V

VO = 0.4 V

VCC = 5.0 V

VREF/2 = 2.5 V

100

120

CONVERSION TIME (

µs)

VCC = 5.0 V

Tamb = 25

350

300

250

200

150

100

200

400

600

800

1000

LOAD CAPACITANCE (pF)

Power Supply Current vs

Temperature

Clock Frequency vs

Clock Capacitor

Input Current vs

Applied Voltage at VREF/2 Pin

Logic Input Threshold

Voltage vs Supply Voltage

CLK–IN Threshold Voltage vs

Supply Voltage

Output Current vs

Temperature

Full Scale Error vs

Conversion Time

Delay From RD Falling

Edge to Data Valid vs

Load Capacitance

5.5 V

5.0 V

4.5 V

SL00018

VCC = 5.0 V

Tamb = 25 oC

Figure 3. Typical Performance Characteristics

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