LTC2633HTS8-LI12 データシートの表示（PDF） - Linear Technology

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LTC2633HTS8-LI12

Dual 12-/10-/8-Bit I2C VOUT DACs with 10ppm/°C Reference

Linear Technology 

LTC2633

Typical Performance Characteristics TA = 25°C unless otherwise noted.

LTC2633

Large-Signal Response

VOUT

0.5V/DIV

VFS = VCC = 5V

1/4 SCALE to 3/4 SCALE

2µs/DIV

Mid-Scale-Glitch Impulse

SCL

5V/DIV LTC2633-H12, VCC = 5V

3nV•s TYPICAL

9TH CLOCK OF

3RD DATA BYTE

Power-On Reset Glitch

LTC2633-L

VCC

2V/DIV

VOUT

2mV/DIV

2633 G22

LTC2633-L12, VCC = 3V

2.8nV•s TYPICAL

2µs/DIV

2633 G23

VOUT

10mV/DIV

ZERO-SCALE

200µs/DIV

2633 G24

Headroom at Rails vs Output

Current

5.0

4.5

5V SOURCING

4.0

3.5

3.0

3V (LTC2633-L) SOURCING

2.5

2.0

1.5

5V SINKING

1.0

0.5

3V (LTC2633-L) SINKING

0

0 1 2 3 4 5 6 7 8 9 10

IOUT (mA)

2633 G25

Exiting Power-Down to Mid-Scale

SCL

5V/DIV

9TH CLOCK OF

3RD DATA BYTE

VOUTA

0.5V/DIV

DAC B IN

POWER-DOWN

MODE

LTC2633-H

VCC = 5V

INTERNAL REF.

5µs/DIV

2633 G26

Power-On Reset to Mid-Scale

VCC

2V/DIV

LTC2633-H

VOUT

0.5V/DIV

LTC2633-L

200µs/DIV

2633 G27

Supply Current vs Logic Voltage

1.2

SWEEP SDA, SCL

BETWEEN

1.0 ON AND VCC

VCC = 5V

0.8

0.6

Exiting Power-Down for Hi-Z

Option

SCL

5V/DIV

LTC2633-LO, VCC = 3V

DAC OUTPUT DRIVEN

BY 1V SOURCE

THROUGH 15k

RESISTOR

9TH CLOCK OF

3RD DATA BYTE

DAC OUTPUT SET

TO MID-SCALE

0.4

0.2

0

VCC = 3V

(LTC2633-L)

1

2

3

4

5

LOGIC VOLTAGE (V)

2633 G28

VOUT

500mV/DIV

HIGH-IMPEDANCE

(POWER-DOWN) MODE

5µs/DIV

2633 G29

2633fb

13

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