AS1530 datasheet(8/29 Pages) AMSCO

8 / 29 page

www.austriamicrosystems.com

Revision 1.02

8 - 29

AS1530/AS1531

Data Sheet - El ectrical Characte ristics

TCVREF

REF Output

Temperature Coefficient

±25

ppm/

°C

Load Regulation

0 to 0.75mA output load

0.6

2.0

mV/

CBYPREF

Capacitive Bypass at REF

4.7

µF

CBYPREF

ADJ

Capacitive Bypass

at REFADJ

0.01

µF

REFADJ Output Voltage

1.22

REFADJ Input Range

For small adjustments, from 1.22V

±100

REFADJ Buffer

Disable Threshold

To power down the internal reference

1.4

VDD1

- 1

Buffer Voltage Gain

2.045

V/V

External Reference: Reference buffer disabled, reference applied to REF

REF Input Voltage Range

1.0

VDD1 +

50mV

REF Input Current

VREF = 2.50V, fSCLK= 4.8MHz

200

350

µA

VREF = 2.50V, fSCLK = 0

320

In power-down, fSCLK = 0

Digital Inputs: DIN, SCLK, CSN

VINH

Input High Voltage

0.7 x

VDD

VINL

Input Low Voltage

0.3 x

VDD

VHYST

Input Hysteresis

0.8

IIN

Input Leakage

VIN = 0 or VDD2

-1

µA

CIN

Input Capacitance

Digital Outputs: DOUT, SSTRB

VOL

Output Voltage Low

ISINK = 5mA

0.45

VOH

Output Voltage High

ISOURCE = 0.5mA

VDD2 -

0.5V

Tri-State Leakage Current

CSN = VDD2

-10

+10

µA

COUT

Tri-State Output

Capacitance

CSN = VDD2

5pF

Power Supply

VDD1,

VDD2,

VDD3

Positive Supply Voltage

2.7

3.6

IVDD1,

IVDD2,

IVDD3

Supply Current

VDD1 = VDD2 =

VDD3 = 5.5V

Normal Operation

with External

Reference

2.2

2.7

Normal Operation

with Internal

Reference

2.7

3.2

Reduced-Power

Mode

0.4

0.8

Full Power-Down

Mode

0.5

µA

PSR

Power-Supply Rejection

VDD1 = VDD2 = VDD3

= 2.7 to 3.6V,

Mid-Scale Input

-2

±0.1

1. Tested at VDD1 = VDD2 = VDD3 = +3V; COM = GND; bit RANGE (page 15) = 1, single-ended input mode.

Table 4. AS1531 Electrical Characteristics (Continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

AS1530 数据表(PDF) 8 Page - ams AG

AS1530 数据表(HTML) 8 Page - ams AG

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

数据表下载