LTC2633-LX10 Ver la hoja de datos (PDF) - Linear Technology

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LTC2633-LX10

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

Linear Technology 

LTC2633

Electrical Characteristics The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V, VOUT unloaded unless otherwise specified.

LTC2633-LI12/-LI10/-LI8/-LX12/-LX10/-LX8/-LZ12/-LZ10/-LZ8/-LO12/-LO10/-LO8/LTC2633A-LI12/-LX12/-LZ12/-LO12 (VFS = 2.5V)

SYMBOL PARAMETER

GETC Gain Temperature

Coefficient

Load Regulation

ROUT DC Output

Impedance

LTC2633-8

LTC2633-10 LTC2633-12 LTC2633A-12

CONDITIONS

MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS

VCC = 3V, Internal Ref. (Note 10)

C-Grade

10

H-Grade

10

10

10

10

ppm/°C

10

10

10

ppm/°C

Internal Ref., Mid-Scale,

VCC = 3V ± 10%,

l

0.009 0.016

0.035 0.064

0.14 0.256

0.14 0.256 LSB/mA

–5mA ≤ IOUT ≤ 5mA

VCC = 5V ± 10%,

l

0.009 0.016

0.035 0.064

0.14 0.256

0.14 0.256 LSB/mA

–10mA ≤ IOUT ≤ 10mA

Internal Ref., Mid-Scale,

VCC = 3V ± 10%,

l

–5mA ≤ IOUT ≤ 5mA

VCC = 5V ± 10%,

l

–10mA ≤ IOUT ≤ 10mA

0.09 0.156

0.09 0.156

0.09 0.156

0.09 0.156

0.09 0.156

0.09 0.156

0.09 0.156

Ω

0.09 0.156

Ω

SYMBOL PARAMETER

VOUT

DAC Output Span

PSR

Power Supply Rejection

ISC

Short Circuit Output Current (Note 6)

Sinking

Sourcing

DAC ISD DAC Output Current in High Impedance

Mode

Power Supply

VCC

Positive Supply Voltage

ICC

Supply Current (Note 7)

ISD

Supply Current in Power-Down Mode

(Note 7)

Reference Input

Input Voltage Range

Resistance

Capacitance

IREF

Reference Current, Power Down Mode

Reference Output

Output Voltage

Reference Temperature Coefficient

Output Impedance

Capacitive Load Driving

Short Circuit Current

CONDITIONS

External Reference

Internal Reference

VCC = 3V ± 10% or 5V ± 10%

VFS = VCC = 5.5V

Zero Scale; VOUT shorted to VCC

Full Scale; VOUT shorted to GND

LO Options Only

For Specified Performance

VCC = 3V, VREF = 2.5V, External Reference

VCC = 3V, Internal Reference

VCC = 5V VREF = 2.5V, External Reference

VCC = 5V, Internal Reference

VCC = 5V

DAC Powered Down

VCC = 5.5V, REF Shorted to GND

MIN

TYP

MAX

0 to VREF

0 to 2.5

–80

l

27

48

l

–28

–48

l

0.01

±0.5

UNITS

V

V

dB

mA

mA

µA

l 2.7

5.5

V

l

0.3

0.5

mA

l

0.4

0.6

mA

l

0.3

0.5

mA

l

0.4

0.6

mA

l

0.5

2

µA

l

1

VCC

V

l 120

160

200

kΩ

12

pF

l

0.005

5

µA

l 1.24

1.25

1.26

V

±10

ppm/°C

0.5

kΩ

10

µF

2.5

mA

2633fb

4

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