LTC6908-1/LTC6908-2

3

Rev C

For more information www.analog.com

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. Test conditions are V+ = 2.7V to 5.5V, RL = 5k, CL = 5pF unless

otherwise noted. The modulation is turned off (MOD is connected to OUT2) unless otherwise specified. RSET is defined as the resistor

connected from the SET pin to the V+ pin.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

ΔfOUT

Frequency Accuracy (Note 4)

V+ = 2.7V

250kHz ≤ fOUT ≤ 5MHz

250kHz ≤ fOUT ≤ 5MHz

50kHz ≤ fOUT < 250kHz

l

l

±0.5

±2

±2.5

±1.5

±2.5

±3.5

%

%

%

V+ = 5V

250kHz ≤ fOUT ≤ 5MHz

250kHz ≤ fOUT ≤ 5MHz

50kHz ≤ fOUT < 250kHz

5MHz < fOUT ≤ 10MHz

l

l

l

±1

±2.5

±3

±3.5

±2

±3

±4

±4.5

%

%

%

%

RSET

Frequency Setting Resistor Range

V+ = 2.7V

| ΔfOUT | ≤ 1.5%

| ΔfOUT | ≤ 2.5%

| ΔfOUT | ≤ 3.5%

l

l

20

20

400

400

400

2000

k

k

k

V+ = 5V

| ΔfOUT | ≤ 2%

| ΔfOUT | ≤ 3%

| ΔfOUT | ≤ 4%

| ΔfOUT | ≤ 4.5%

l

l

l

20

20

400

10

400

400

2000

20

k

k

k

k

ΔfOUT/ΔT Frequency Drift Over Temperature

RSET = 100k

l

±0.004

%/°C

ΔfOUT/ΔV+ Frequency Drift Over Supply (Note 4) V+ = 2.7V to 3.6V, RSET = 100k

V+ = 4.5V to 5.5V, RSET = 100k

l

l

0.04

0.4

0.25

0.9

%/V

%/V

Period Variation

(Frequency Spreading)

RSET = 100k, MOD Pin = V+, GND or OPEN

l

±7.5

±10

±12.5

%

Long-Term Stability of Output

Frequency (Note 8)

300

ppm/√kHr

Duty Cycle (Note 5)

No Modulation, 250kHz ≤ fOUT ≤ 1MHz

l

45

50

55

%

V+

Operating Supply Range

l

2.7

5.5

V

IS

Power Supply Current

RSET = 2000k, RL = ∞, fOUT = 50kHz, MOD Pin = V+

V+ = 5V

V+ = 2.7V

l

l

0.4

0.4

0.65

0.6

mA

mA

RSET = 20k, RL = ∞, fOUT = 5MHz, MOD Pin = GND

V+ = 5V

V+ = 2.7V

l

l

1.25

0.9

1.7

1.3

mA

mA

VIH_MOD

High Level MOD Input Voltage

l

V+ – 0.4

V

ELECTRICAL CHARACTERISTICS

ORDER INFORMATION

Lead Free Finish

TAPE AND REEL (MINI)

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

AUTOMOTIVE PRODUCTS**

LTC6908IS6-1#WTRMPBF

LTC6908IS6-1#WTRPBF

LTBYC

6-Lead Plastic TSOT-23

–40°C to 85°C

LTC6908HS6-1#WTRMPBF

LTC6908HS6-1#WTRPBF

LTBYC

6-Lead Plastic TSOT-23

–40°C to 125°C

LTC6908IS6-2#WTRMPBF

LTC6908IS6-2#WTRPBF

LTBYD

6-Lead Plastic TSOT-23

–40°C to 85°C

LTC6908HS6-2#WTRMPBF

LTC6908HS6-2#WTRPBF

LTBYD

6-Lead Plastic TSOT-23

–40°C to 125°C

TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container.

Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.

**Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These

models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your

local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for

these models.