LTC1040CSW datasheet(3/12 Pages) LINER

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LTC1040

1040fa

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

of a device may be impaired.

Note 2: Applies over input voltage range limit and includes gain

uncertainty.

Note 3: Tracking error = (VIN1 – VIN2)/ VIN1.

Note 4: RIN is guaranteed by design and is not tested.

RIN = 1/(fS • 33pF).

Note 5: Average supply current = tD • lS(ON) • fS + (1 – tD x fS) • lS(OFF).

Note 6: Response time is set by an internal oscillator and is independent

of overdrive voltage.

Note 7: Inputs and outputs also capable of meeting EIA/JEDEC B series

CMOS specifications.

TYPICAL PERFOR A CE CHARACTERISTICS

Peak Supply Current

vs Supply Voltage

SUPPLY VOLTAGE, V+ (V)

LTC1040 • TPC01

°C

125

°C

–55

°C

LTC1040M/LTC1040C

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

STROBE Input (Note 7)

VIH

Logic “1” Input Voltage

V+ = 5.25V

2.0

1.6

VIL

Logic “0” Input Voltage

V+ = 4.75V

1.0

0.8

REXT

External Timing Resistor

Resistor Tied Between V+ and OSC Pin

100

10,000

Ω

Sampling Frequency

REXT = 1M, CEXT = 0.1µF

ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating

temperature range otherwise specifications are at TA = 25°C. Test conditions: V+ = 5V, V – = – 5V, unless otherwise specified

Normalized Sampling Frequency

vs Supply Voltage and Temperature

SUPPLY VOLTAGE, V+ (V)

1.4

1.8

LTC1040 • TPC02

1.0

0.6

2.2

1.2

1.6

0.8

2.0

TA = 125°C

TA = 25°C

TA = –55°C

R = 1M

C = 0.1

µF

Input Resistance

vs Sampling Frequency

SAMPLING FREQUENCY, fS (Hz)

107

109

1011

102

104

103

LTC1040 • TPC05

108

1010

Sampling Rate vs REXT, CEXT

REXT (Ω)

100k

0.1

102

103

10M

LT1040 • TPC03

CEXT = 1000pF

CEXT = 0.01µF

CEXT = 0.1µF

CEXT = 1µF

CEXT = 0.05µF

Response Time

vs Supply Voltage

SUPPLY VOLTAGE, V+ (V)

200

250

300

812

LTL1040 • TPC04

150

100

TA = 25°C

VP-P Output Voltage

vs Load Current

LOAD CURRENT, IL (mA)

0.8

0.4

LTC1040 • TPC06

1.2

1.6

2.0

0.6

0.2

1.0

1.4

1.8

V+ = 2.8V

V+ = 16V

V+ = 5V

V+ = 10V

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