1655 参数 Datasheet PDF下载

LTC1655/LTC1655L

ELECTRICAL CHARACTERISTICS

The

q

denotes specifications which apply over the full operating temperature range, otherwise specifications are at T

A

= 25°C.

V

CC

= 4.5V to 5.5V (LTC1655), V

CC

= 2.7V to 5.5V (LTC1655L); V

OUT

unloaded, REF unloaded, unless otherwise noted.

SYMBOL

PARAMETER

Short-Circuit Current Low

CONDITIONS

V

OUT

Shorted to GND

LTC1655

LTC1655L

V

OUT

Shorted to V

CC

LTC1655

LTC1655L

Input Code = 0

LTC1655

LTC1655L

Input Code = 65535, with Internal Reference

(Note 4)

(Note 4) to 0.0015% (16-Bit Settling Time), V

CC

= 5V

(Note 4) to 0.012% (13-Bit Settling Time), V

CC

= 5V

(Note 5)

DAC Switched Between 8000

H

and 7FFF

H

LTC1655, At 1kHz

LTC1655L, At 1kHz

LTC1655

LTC1655L

(Notes 6, 7) LTC1655

LTC1655L

LTC1655

LTC1655L

LTC1655, REF Overdriven to 2.2V

LTC1655L, REF Overdriven to 1.3V

q

q

q

q

q

q

MIN

TYP

MAX

UNITS

Op Amp DC Performance

q

q

q

q

q

q

70

70

80

70

40

70

120

140

140

150

120

160

±3

mA

mA

mA

mA

Ω

Ω

mV/V

V/µs

µs

µs

nV-s

nV-s

nV√Hz

nV√Hz

Short-Circuit Current High

Output Impedance to GND

Output Line Regulation

AC Performance

Voltage Output Slew Rate

Voltage Output Settling Time

Digital Feedthrough

Midscale Glitch Impulse

Output Voltage Noise

Spectral Density

Reference Output

Reference Output Voltage

Reference Input Range

Reference Output Tempco

Reference Input Resistance

Reference Short-Circuit Current

Reference Output Line Regulation

Reference Load Regulation

Reference Output Voltage Noise

Spectral Density

Digital I/O

V

IH

V

IL

V

OH

V

OL

Digital Input High Voltage

Digital Input Low Voltage

Digital Output High Voltage

Digital Output Low Voltage

±0.3

±0.7

20

10

0.3

12

280

220

2.036

1.240

2.2

1.3

2.048

1.250

2.060

1.260

V

CC

/2

V

CC

/2

V

V

V

V

ppm/°C

ppm/°C

kΩ

kΩ

5

10

8.5

7.0

13

13

40

100

±1.5

5

150

115

q

q

q

q

q

q

q

q

mA

mV/V

mV/A

nV√Hz

nV√Hz

V

V

I

OUT

= 100µA

LTC1655, At 1kHz

LTC1655L, At 1kHz

LTC1655

LTC1655L

LTC1655

LTC1655L

LTC1655, I

OUT

= – 1mA

LTC1655L, I

OUT

= – 1mA

LTC1655, I

OUT

= 1mA

LTC1655L, I

OUT

= 1mA

q

2.4

2.0

0.8

0.6

V

CC

– 1.0

V

CC

– 0.7

0.4

0.4

V

V

V

V

V

V

3