4

LTC1860/LTC1861

18601f

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: All voltage values are with respect to GND.

Note 3: Integral nonlinearity is defined as deviation of a code from a

straight line passing through the actual endpoints of the transfer curve.

The deviation is measured from the center of the quantization band.

Note 4: Channel leakage current is measured while the part is in sample

mode.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Conversion Time (See Figure 1)

q

2.75

3.2

µs

q

250

kHz

Delay Time, SCK

↓ to SDO Data Valid

15

20

ns

q

25

ns

Delay Time, CONV

↑ to SDO Hi-Z

q

30

60

ns

Delay Time, CONV

↓to SDO Enabled

q

30

60

ns

Time Output Data Remains

q

510

ns

Valid After SCK

↓

SDO Rise Time

8

ns

SDO Fall Time

4

ns

Conditions, unless otherwise noted.

TI I G CHARACTERISTICS

TYPICAL PERFOR A CE CHARACTERISTICS

Supply Current vs Sampling

Frequency

Supply Current vs Temperature

Sleep Current vs Temperature

SAMPLING FREQUENCY (kHz)

0.01

1000

100

10

1

0.1

0.01

100

1860/61 G01

0.1

1.0

10

1000

CONV LOW = 800ns

T

TEMPERATURE (

°C)

–50

1000

800

600

400

200

0

0

50

75

1860/61 G02

–25

25

100

125

CONV HIGH = 3.2

µS

TEMPERATURE (

°C)

–50

1000

900

800

700

600

500

400

300

200

100

0

0

50

75

1860/61 G03

–25

25

100

125