LTC2619I 查看數據表（PDF） - Linear Technology

零件编号

产品描述 (功能)

生产厂家

LTC2619I

Quad 16-/14-/12-Bit Rail-to-Rail DACs with I2C Interface

Linear Technology 

LTC2609/LTC2619/LTC2629

TIMING CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature

range, otherwise specifications are at TA = 25°C. (See Figure 1) (Notes 8, 9)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VCC = 2.7V to 5.5V

fSCL

SCL Clock Frequency

tHD(STA) Hold Time (Repeated) Start Condition

tLOW

Low Period of the SCL Clock Pin

tHIGH

High Period of the SCL Clock Pin

tSU(STA) Set-Up Time for a Repeated Start Condition

tHD(DAT) Data Hold Time

tSU(DAT) Data Set-Up Time

tr

Rise Time of Both SDA and SCL Signals

tf

Fall Time of Both SDA and SCL Signals

tSU(STO) Set-Up Time for Stop Condition

tBUF

Bus Free Time Between a Stop and Start Condition

t1

Falling Edge of 9th Clock of the 3rd Input Byte to

LDAC High or Low Transition

t2

LDAC Low Pulse Width

(Note 7)

(Note 7)

l

0

l 0.6

l 1.3

l 0.6

l 0.6

l

0

l 100

l 20 + 0.1CB

l 20 + 0.1CB

l 0.6

l 1.3

l 400

l

20

400

kHz

μs

μs

μs

μs

0.9

μs

ns

300

ns

300

ns

μs

μs

ns

ns

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: Linearity and monotonicity are defined from code kL to code

2N – 1, where N is the resolution and kL is given by kL = 0.016(2N/VREF),

rounded to the nearest whole code. For VREF = 4.096V and N = 16, kL =

256 and linearity is defined from code 256 to code 65,535.

Note 3: SDA, SCL at 0V or VCC, CA0, CA1 and CA2 floating.

Note 4: Inferred from measurement at code kL (see Note 2) and at full-Scale.

Note 5: VCC = 5V, VREF = 4.096V. DAC is stepped 1/4 scale to 3/4 scale and

3/4 scale to 1/4 scale. Load is 2k in parallel with 200pF to GND.

Note 6: VCC = 5V, VREF = 4.096V. DAC is stepped ±1LSB between half scale

and half scale – 1. Load is 2k in parallel with 200pF to GND.

Note 7: CB = capacitance of one bus line in pF.

Note 8: All values refer to VIH(MIN) and VIL(MAX) levels.

Note 9: These specifications apply to LTC2609/LTC2609-1,

LTC2619/LTC2619-1, LTC2629/LTC2629-1.

Note 10: DC crosstalk is measured with VCC = 5V, REFA = REFB = REFC

= REFD = 4.096V, with the measured DAC at mid-scale, unless otherwise

noted.

Note 11: RL = 2kΩ to GND or VCC.

Note 12: Guaranteed by design and not production tested.

26091929fa

5

Share Link: