ISL43L420 datasheet(39/44 Pages) INTERSIL

Part #	ISL43L420

Description	Providing high-performance solutions for every link in the signal chain

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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Intersil Signal Path Products  2012  www.intersil.com

39

Key Features

IIN vs VIN, Over-Temperature

Temperature Drift (Coefficient)

Low Power Consumption

Long Term Drift

Ultra Precision: ISL21090

Low Cost: ISL21010

Ultra Low Noise,

Precision Voltage

Reference

Micropower Voltage

Reference

• 2.5V Reference Output Voltage Option

• Initial Accuracy: ±0.02%

• Output Voltage Noise: 1μVP-P Typ

(0.1Hz to 10Hz) (1.25V Option)

• Supply Current: 930μA (Typ)

• Tempco: 7ppm/°C Max

• Output Current Capability: 20mA

• Line Regulation: 8ppm/V

• Load Regulation: 2.5ppm/mA

• Operating Temperature Range: -40°C to

+125°C

• Reference Output Voltages: 1.024V, 1.25V, 1.5V,

2.048V, 2.5V, 3.0V, 3.3V, 4.096V

• Precision 0.2% Initial Accuracy

• Input Voltage Range:

- ISL21010-10, -12, -15: 2.2V to 5.5V

The ISL21090 is an ultra low noise, high DC accuracy

precision voltage reference with wide input voltage

range from 3.7V to 36V. The ISL21090 uses the new

Intersil Advanced Bipolar technology to achieve sub

1μVP-P (0.1Hz to 10Hz) noise with an initial voltage

accuracy of 0.02%. The ISL21090 offers a 1.25V and

2.5V output voltage option with 7ppm/°C temperature

coefficient and also provides excellent line and

load regulation. The device is offered in an 8 Ld

SOIC package. The ISL21090 is ideal for high-end

instrumentation, data acquisition and processing

applications requiring high DC precision where low

noise performance is critical.

The ISL21010 is a precision, low dropout micropower

bandgap voltage reference in a space-saving SOT-23

package. It operates from a single 2.2V to 5.5V supply

(minimum voltage is dependent on voltage option)

and provides a ±0.2% accurate reference.

20

25

30

35

40

45

50

55

60

65

70

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

VIN (V)

+25°C

-40°C

+125°C

TIME (Hrs)

40

30

20

10

0

200

400

600

800

1000

-10

-20

-30

ISL21090 Long Term Drift Data (1000 Hrs)

ISL21090 Typical Temperature Coefficient

2.4980

2.4985

2.4990

2.5000

2.5005

2.5010

-55

-35

-15

5

25

45

65

85

105 125 145

TEMPERATURE (°C)

TYPICAL TEMPERATURE

COEFFICIENT CURVE FOR 10 UNITS

2.4995

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ISL43L420 Datasheet(PDF) 39 Page - Intersil Corporation

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