2645L8 查看數據表（PDF） - Linear Technology

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2645L8

Quad 12-/10-/8-Bit PWM to VOUT DACs with 10ppm/°C Reference

Linear Technology 

LTC2645

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

(Internal Reference, VFS = 2.5V)

Large-Signal Response

INX to VOUTX Delay

Full-Scale Transition

Entering Idle Mode Zero-Scale

from Mid-Scale (IDLSEL=GND)

INA

2/DIV

INA

2V/DIV

VOUTX

0.5V/DIV

VFS = VREF = VCC = 5V

1/4 SCALE TO 3/4 SCALE

2µs/DIV

VOUTA

500mV/DIV

2645 G15

2µs/DIV

VOUTA

500mV/DIV

2645 G16

10ms/DIV

2645 G17

Entering Idle Mode Full-Scale

From Mid-Scale (IDLSEL=GND)

INA

2V/DIV

Exiting Idle Mode Zero-Scale

to Mid-Scale (IDLSEL=GND)

INA

2V/DIV

Exiting Idle Mode Full-Scale

to Mid-Scale (IDLSEL=GND)

INA

2V/DIV

VOUTA

500mV/DIV

10ms/DIV

VOUTA

500mV/DIV

2645 G18

Exiting Idle Mode Power-Down

(1 Channel) to Mid-Scale

(IDLSEL=VCC)

INA

2V/DIV

VREF

1V/DIV

VOUTA

500mV/DIV

500µs/DIV

2645 G21

VOUTA

500mV/DIV

1ms/DIV

2645 G19

1ms/DIV

2645 G20

Power-On-Reset to Idle Mode

Full-Scale (IDLSEL=GND)

VCC

2V/DIV

INA

2V/DIV

VREF

1V/DIV

VOUTA

2V/DIV

10ms/DIV

2645 G22

2645f

For more information www.linear.com/LTC2645

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