Zetex ZR404005F25, ZR404005N825, ZR40401N825, ZR40401R25, ZR404005R25 Datasheet

PRECISION 2.5 VOLT MICROPOWER
VOLTAGE REFERENCE

ISSUE 3 - MARCH 1998

ZR4040-2.5

DEVICE DESCRIPTION

The ZR4040-2.5 uses a bandgap circuit
design to achieve a precision micropower
voltage reference of 2.5 volts. The device is
available in small outline surface mount
packages, ideal for applications where space
saving is important, as well as packages for
through hole requirements.

The ZR4040-2.5 design provides a stable
voltage without an external capacitor and is
stable with capacitive loads. The ZR4040-2.5
is recommended for operation between
60µA and 15mA and so is ideally suited to
low power and battery powered
applications.

Excellent performance is maintained to an
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.

SCHEMETIC DIAGRAM

FEATURES

Small outline SO8 and SOT23 packages

•

TO92 style package

•

No stabilising capacitor required

•

Typical TC 30ppm/°C

•

Typical slope resistance 0.4Ω

•

2% 1% and 0.5 % tolerance

•

Industrial temperature range

•

Operating current 60µA to 15mA

•

Transient response, stable in less than

•

10µs

APPLICATIONS

Battery powered and portable

•

equipment.
Metering and measurement systems.

•

Instrumentation.

•

Test equipment.

•

Data acquisition systems.

•

Precision power supplies.

•

V

R

G

nd

4-173

ZR4040-2.5

ABSOLUTE MAXIMUM RATING

Reverse Current 25mA
Forward Current 25mA
Operating Temperature -40 to 85°C
Storage Temperature -55 to 125°C

Power Dissipation (T

SOT23 330mW
SO8 625mW
E-Line, 3 pin (TO92) 500mW

ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T

SYMBOL PARAMETER

V

I
I

R

MIN

R

Reverse Breakdown Voltage

Minimum Operating Current 25 60
Recommended Operating

Current

T

† Average Reverse

C

Breakdown Voltage Temp.
Co.

R

§ Slope Resistance 0.4 2

S

Z

R

E

N

Reverse Dynamic Impedance IR =1mA

Wideband Noise Voltage IR= 1mA

CONDITIONS LIMITS TOL.

=150µA

I

R

I

to

R(min)

I

R(max)

f = 100Hz
I

=0.1 I

AC

R

f = 10Hz to

10kHz

=25°C

amb

MIN TYP MAX

2.4875

2.475

2.45

0.06 15 mA

=25°C)

amb

UNITS

%

2.5

2.5

2.5

2.5125

2.525

2.55

0.5
1
2

V

µA

30 100 ppm/°C

Ω

0.3 0.8

45

Ω

µV

(rms)

(

V

−

V

†

T

Note: V

=

C

R(max)

R(max

V

- V

)

x (

R

R(min)

) x 1000000

R(min

)

T

−

T

(

max

)

)

(

min

)

is the maximum
deviation in reference voltage measured
over the full operating temperature
range.

V

Change

(

I

(

§

min) to I

R

R

=

S

R

I

(

max

) −

R

(

max

R

I

(

min

)

R

60

)

50

A

µ

(
t

40

urren

30

e C

))

evers
R

20

10

0

0.2 0.6

1.0 1.8 2.61.4 2.2

°C

=85

A

T

°C

=25

A

T

-40°C

=

A

T

Reverse Voltage (V)

Reverse Characteristics

4-174