7820 データシートの表示（PDF） - MAXWELL TECHNOLOGIES

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7820

Microprocessor-compatible 8-Bit ADC

MAXWELL TECHNOLOGIES 

Microprocessor-compatible 8-Bit ADC

7820

TABLE 2. 7820 ABSOLUTE MAXIMUM RATINGS1

PARAMETER

VIN to GND

Operating Temperature

Storage Temperature Range

Power Dissipation to 75°C

Derates above +75°C

MIN

MAX

-0.3

VDD +0.3

-55

125

-65

150

--

450

--

6

UNIT

V

°C

°C

mW

mW/°C

1. CAUTION: ESD (electrostatic discharge) sensitive device. The digital control inputs are diode protected; how-

ever, permanent damage may occur on unconnected devices subject to high energy electrostatic fields. Unused

devices must be stored in conductive foam or shunts. The protective foam should be discharged to the destina-

tion socket before devices are inserted.

TABLE 3. 7820 DC ELECTRICAL CHARACTERISTICS

(VDD = +5V; VREF(+) = +5V; VREF(-) = GND = 0V, UNLESS OTHERWISE SPECIFIED) (RD MODE (PIN 7 = 0V))

(TA = -55 TO 125 ° C UNLESS OTHERWISE SPECIFIED)

PARAMETER

TEST CONDITIONS SUBGROUPS

MIN

TYP

MAX

UNIT

Accuracy

Resolution

--

Total Unadjusted Error1

--

8

--

--

Bits

--

--

±1.0

LSB

Minimum Resolution for which No

--

Missing Codes are Guaranteed

--

--

8

Bits

Reference Input

Input Resisitance

--

1, 2, 3

1.0

--

4.0

kΩ

VREF (+) Input Voltage Range

VREF (-) Input Voltage Range

Analog Input

--

1, 2, 3

VREF(-)

--

VDD

V

--

1, 2, 3

GND

--

VREF(+)

V

Input Voltage Range

Input Leakage Current

Input Capacitance2

--

1, 2, 3

VREF(-)

--

VREF(+)

V

--

1, 2, 3

--

--

±3

µA

--

1, 2, 3

--

45

--

pF

Logic Inputs

CS, WR, RD

VINH

VINH

IINH(CS, RD)

IINH(WR)

IINL(WR)

Input Capacitance2

--

1, 2, 3

2.4

--

--

V

--

1, 2, 3

--

--

0.8

V

--

1, 2, 3

--

--

1

µA

--

1, 2, 3

--

--

3

µA

--

1, 2, 3

--

--

-1

µA

--

1, 2, 3

--

5

8

pF

09.09.03 Rev 3

All data sheets are subject to change without notice 3

©2003 Maxwell Technologies

All rights reserved.

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