ZRC330A03STOB Datasheet ZRC330N803TA, ZRC330A02STOB, ZRC330A03STOB | P1-P3

PRECISION 3.3 VOLT LOW KNEE

CURRENT VOLTAGE REFERENCE

ISSUE 2 - FEBRUARY 1997

ZRC330

DEVICE DESCRIPTION

The ZRC330 uses a bandgap circuit design to

achieve a precision micropower voltage

reference of 3.3 volts. The device is available

in small outline surface mount packages, ideal

for applications where space saving is

important.

The ZRC330 design provides a stable voltage

without an external capacitor and is stable with

capacitive loads. The ZRC330 is recommended

for operation between 20µA and 5mA and so is

ideally suited to low power and battery

powered applications.

Excellent performance is maintained to a

suggested absolute maximum of 25mA,

however the rugged design and 20 volt

processing allows the reference to withstand

transient effects and currents up to 200mA.

Superior switching capability allows the device

to reach stable operating conditions in only a

few microseconds.

FEATURES

• Small outline SOT23, SO8 and TO92

style packages

• No stabilising capacitor required

• Low knee current, 15µA typical

• Typical slope resistance 0.6Ω

• ± 3%, 2% and 1% tolerance

• Industrial temperature range

• Operating current 20µA to 5mA

APPLICATIONS

• Battery powered and portable equipment.

• Metering and measurement systems.

• Instrumentation.

• Test equipment.

• Data acquisition systems.

• Precision power supplies.

• Crystal oscillators

V

R

G

nd

1 - 42

SCHEMATIC DIAGRAM

Reverse Characteristics

Reverse Voltage (V)

Reve

rse

C

u

rre

n

t (

µ

A

)

0

10

20

30

40

4.02.0

T

=25°

C

T =-40°C

T =85°C

ZRC330

TYPICAL CHARACTERISTICS

Forwa

rd

V

oltage

(

V

)

Temperature (°C)

Reference Current (mA)

Frequency (KHz)

Temperature Drift

Slope Resistance v Current

Reference

v

oltage (V)

Sl

op

e

r

esi

stanc

e (

Ω

)

Transient Response

(Single Pulse)

Slope Resistance v Frequency

Forward Characteristics

Forward Current (mA)

µ

Time (

µ

s)

Time (µs)

Transient Response

(Repetitive Pulse)

S

lo

pe

res

istance

(

Ω

)

µ

V

- (V

)

V

- (V

)

V

-

(V

)

V

- (V)

ZRC330

ABSOLUTE MAXIMUM RATING

Reverse Current 25mA

Forward Current 25mA

Operating Temperature -40 to 85°C

Storage Temperature -55 to 125°C

Power Dissipation (T

amb

=25°C)

SOT23 330mW

E-Line, 3 pin (TO92) 500mW

E-Line, 2 pin (TO92) 500mW

SO8 625mW

ELECTRICAL CHARACTERISTICS

TEST CONDITIONS (Unless otherwise stated) T

amb

=25°C

SYMBOL PARAMETER

CONDITIONS LIMITS TOL.% UNITS

MIN TYP MAX

V

R

Reverse Breakdown Voltage

I

R

=150µA

3.27

3.234

3.2

3.3

3.33

3.366

3.4

1

2

3

V

I

MIN

Minimum Operating Current 15 20

µA

I

R

Recommended Operating Current 0.02 5 mA

T

C

 Average Reverse Breakdown

Voltage Temp. Co. I

R(min)

to

I

R(max)

15 50 ppm/°C

R

S

§ Slope Resistance 0.6 2

Ω

Z

R

Reverse Dynamic Impedance

I

R

=1mA

f = 100Hz

I

AC

= 0.1 I

R

0.5 1.2

Ω

E

N

Wideband Noise Voltage

I

R

=150µA

f = 10Hz to

10kHZ

43

µV(rms)



T

C

=

V

R

Change x 1000000

V

R

x Temperature Change

§

R

S

=

V

R

Change (I

R

(min) to I

R

(max))

I

R

(max) − I

R

(min)

1 - 441 - 43

Reverse Characteristics

Reverse Voltage (V)

Reve

rse

C

u

rre

n

t (

µ

A

)

0

10

20

30

40

4.02.0

T

=25°

C

T =-40°C

T =85°C

ZRC330

TYPICAL CHARACTERISTICS

Forwa

rd

V

oltage

(

V

)

Temperature (°C)

Reference Current (mA)

Frequency (KHz)

Temperature Drift

Slope Resistance v Current

Reference

v

oltage (V)

Sl

op

e

r

esi

stanc

e (

Ω

)

Transient Response

(Single Pulse)

Slope Resistance v Frequency

Forward Characteristics

Forward Current (mA)

µ

Time (

µ

s)

Time (µs)

Transient Response

(Repetitive Pulse)

S

lo

pe

res

istance

(

Ω

)

µ

V

- (V

)

V

- (V

)

V

-

(V

)

V

- (V)

ZRC330

ABSOLUTE MAXIMUM RATING

Reverse Current 25mA

Forward Current 25mA

Operating Temperature -40 to 85°C

Storage Temperature -55 to 125°C

Power Dissipation (T

amb

=25°C)

SOT23 330mW

E-Line, 3 pin (TO92) 500mW

E-Line, 2 pin (TO92) 500mW

SO8 625mW

ELECTRICAL CHARACTERISTICS

TEST CONDITIONS (Unless otherwise stated) T

amb

=25°C

SYMBOL PARAMETER

CONDITIONS LIMITS TOL.% UNITS

MIN TYP MAX

V

R

Reverse Breakdown Voltage

I

R

=150µA

3.27

3.234

3.2

3.3

3.33

3.366

3.4

1

2

3

V

I

MIN

Minimum Operating Current 15 20

µA

I

R

Recommended Operating Current 0.02 5 mA

T

C

 Average Reverse Breakdown

Voltage Temp. Co. I

R(min)

to

I

R(max)

15 50 ppm/°C

R

S

§ Slope Resistance 0.6 2

Ω

Z

R

Reverse Dynamic Impedance

I

R

=1mA

f = 100Hz

I

AC

= 0.1 I

R

0.5 1.2

Ω

E

N

Wideband Noise Voltage

I

R

=150µA

f = 10Hz to

10kHZ

43

µV(rms)



T

C

=

V

R

Change x 1000000

V

R

x Temperature Change

§

R

S

=

V

R

Change (I

R

(min) to I

R

(max))

I

R

(max) − I

R

(min)

1 - 441 - 43

ZRC330A03STOB

ZRC330A03STOB

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