LTC2609IGNPBF datasheet(5/22 Pages) LINER

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LTC2609/LTC2619/LTC2629

26091929fa

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

400

kHz

tHD(STA)

Hold Time (Repeated) Start Condition

0.6

μs

tLOW

Low Period of the SCL Clock Pin

1.3

μs

tHIGH

High Period of the SCL Clock Pin

0.6

μs

tSU(STA)

Set-Up Time for a Repeated Start Condition

0.6

μs

tHD(DAT)

Data Hold Time

0.9

μs

tSU(DAT)

Data Set-Up Time

100

Rise Time of Both SDA and SCL Signals

(Note 7)

l 20 + 0.1CB

300

Fall Time of Both SDA and SCL Signals

(Note 7)

l 20 + 0.1CB

300

tSU(STO)

Set-Up Time for Stop Condition

0.6

μs

tBUF

Bus Free Time Between a Stop and Start Condition

1.3

μs

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

LDAC High or Low Transition

400

LDAC Low Pulse Width

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.

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