SPT774 参数 Datasheet PDF下载

ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur)

1

25

°

C

Supply Voltages

Mode Control Voltage (V

EE

to DGND) .................... 0 to +7 V

Logic Supply Voltage (V

DD

to DGND) ...................0 to +7 V

Analog to Digital Ground (AGND to DGND) .................

±1

V

Input Voltages

Control Input Voltages (to DGND)

(CE, CS, Ao, 12/8, R/C) ......................... -0.5 to V

DD

+0.5 V

Analog Input Voltage (to AGND)

(REF IN, BIP OFF, 10 V

IN

) ......................................

±16.5

V

20 V V

IN

Input Voltage (to AGND) ..............................

±24

V

Note:

Output

Reference Output Voltage .............. Indefinite Short to GND

Momentary Short to V

DD

Temperature

Operating Temperature, Ambient .................... 0 to +70

°C

Junction ......................... +165

°C

Lead Temperature, (Soldering 10 Seconds) ........... +300

°C

Storage Temperature .................................... -65 to +150

°C

Operation at any Absolute Maximum Rating is not implied. See Operating Conditions for proper nominal applied

conditions in typical applications.

ELECTRICAL SPECIFICATIONS

T

A

= T

MIN

to T

MAX

, V

EE

= 0 to +5 V, V

DD

= +5 V, f

S

= 117 kHz, f

IN

= 10 kHz, unless otherwise specified..

PARAMETER

TEST

CONDITIONS

TEST

LEVEL

MIN

SPT774C

TYP

MAX

MIN

SPT774B

TYP

MAX

UNITS

DC ELECTRICAL CHARACTERISTICS

Resolution

Linearity Error

Differential Linearity

Unipolar Offset; 10 V, 20 V

Bipolar Offset;

±5

V,

±10

V

Full Scale Calibration Error1

Full Scale Calibration Error1

Temperature Coefficients

Unipolar Offset

Bipolar Offset

Full Scale Calibration

Power Supply Rejection

+4.75 V<V

DD

<+5.25 V

Analog Input Ranges

Bipolar

Unipolar

Input Impedance

10 Volt Span

20 Volt Span

T

A

= 0 to +70

°C

No Missing Codes

+25

°C

Adjustable to Zero

+25

°C

Adjustable to Zero

+25

°C

Adjustable to Zero

VI

VI

VI

VI

VI

VI

V

V

V

V

Max change in full

scale calibration

VI

0.47

±1.0

±2.0

±12

12

12

±1

12

±2

±10

0.30

0.37

±1.0

±2.0

±12

±0.5

12

±0.5

±2

±4

0.30

Bits

LSB

Bits

LSB

LSB

% of FS

% of FS

ppm/°C

ppm/°C

ppm/°C

No Adjustment to Zero

T

A

= 0 to +70

°C

Using Internal Reference

±0.5

LSB

VI

VI

VI

VI

VI

VI

-5

-10

0

0

8.5

35

12

50

+5

+10

+10

+20

-5

-10

0

0

8.5

35

12

50

+5

+10

+10

+20

Volts

Volts

Volts

Volts

kΩ

kΩ

SPT774

2

8/1/00