LTC2637 datasheet(14/28 Pages) LINER

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LTC2637

2637fa

typical perFormance characteristics

Large-Signal Response

Mid-Scale Glitch Impulse

Power-On Reset Glitch

Headroom at Rails

vs Output Current

Exiting Power-Down to Mid-Scale

Power-On Reset to Mid-Scale

Supply Current vs Logic Voltage

DAC to DAC Crosstalk (Dynamic)

Multiplying Bandwidth

LTC2637

TA = 25°C, unless otherwise noted.

2µs/DIV

VOUT

0.5V/DIV

2637 G22

VFS = VCC = 5V

1/4 SCALE to 3/4 SCALE

SCL

5V/DIV

VOUT

5mV/DIV

2µs/DIV

2637 G23

9TH CLOCK OF

3RD DATA BYTE

LTC2637-H12

VCC = 5V, 3nV•s TYP

LTC2637-L12

VCC = 3V, 2.1nV•s TYP

200µs/DIV

VOUT

5mV/DIV

VCC

2V/DIV

2637 G24

LTC2637-L

ZERO-SCALE

IOUT (mA)

5.0

4.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0.5

2637 G25

5V SOURCING

3V (LTC2637-L) SOURCING

5V SINKING

3V (LTC2637-L) SINKING

SCL

5V/DIV

VOUT

0.5V/DIV

5µs/DIV

2637 G26

9TH CLOCK OF

3RD DATA BYTE

DACs A TO G IN

POWER-DOWN

MODE

LTC2637H

VCC = 5V

INTERNAL REF

LOGIC VOLTAGE (V)

1.8

1.6

1.2

1.4

1.0

0.8

0.6

2637 G28

SWEEP SDA, SCL,

BETWEEN 0V AND VCC

VCC = 5V

VCC = 3V

(LTC2637-L)

SCL

5V/DIV

VOUT

2mV/DIV

1 DAC

SWITCH 0 TO FS

2V/DIV

2µs/DIV

2637 G29

9TH CLOCK OF

3RD DATA BYTE

LTC2637-H12

VCC = 5V, 3nV•s TYP

CREF = 0.1µF

200µs/DIV

VCC

2V/DIV

VOUT

0.5V/DIV

2637 G27

LTC2637-H

LTC2637-L

FREQUENCY (Hz)

2637 G30

–16

–14

–12

–10

–8

–6

–4

–2

–18

100k

10k

VCC = 5V

VREF(DC) = 2V

VREF(AC) = 0.2VP-P

CODE = FULL-SCALE

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