Datasheet ZRC500A01, ZRC500A02, ZRC500A03, ZRC500F01, ZRC500F02 Datasheet (Zetex)

PRECISION 5.0 VOLT LOW KNEE CURRENT
VOLTAGE REFERENCE

ISSUE 3 - MARCH 1998

ZRC500

DEVICE DESCRIPTION

The ZRC500 uses a bandgap circuit design to
achieve a precision micropower voltage
reference of 5.0 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 ZRC500 design provides a stable voltage
without an external capacitor and is stable
with capacitive loads. The ZRC500 is
recommended for operation between 25µA
and 5mA 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.

SCHEMATIC DIAGRAM

FEATURES

Small outline SOT23, SO8 and TO92

•

style packages
No stabilising capacitor required

•

Low knee current, 19µA typical

•

Typical TC 30ppm/°C

•

Typical slope resistance 0.4Ω

•

± 3%, 2% and 1% tolerance

•

Industrial temperature range

•

Operating current 25µA to 5mA

•

Transient response, stable in less than

•

10µs
Optional extended current range

•

APPLICATIONS

Battery powered and portable

•

equipment.
Instrumentation.

•

Test equipment.

•

Metering and measurement systems.

•

V

G

R

nd

4-262

ZRC500

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
E-Line, 3 pin (TO92) 500mW
E-Line, 2 pin (TO92) 500mW
SO8 625mW

ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T

SYMBOL PARAMETER

V

I
I

R

MIN

R

Reverse Breakdown Voltage

Minimum Operating Current 19 25
Recommended Operating

Current

T

† Average Reverse Breakdown

C

Voltage Temp. Co. I

R

§ Slope Resistance 0.4 2

S

Z

R

E

N

Reverse Dynamic Impedance IR =1mA

Wideband Noise Voltage

CONDITIONS LIMITS TOL.

=150µA

I

R

to

R(min)

I

R(max)

f = 100Hz
I

=0.1 I

AC

R

=150µA

I

R

f = 10Hz to

10kHz

=25°C

amb

MIN TYP MAX

4.95

4.9

4.85

0.025 5 mA

=25°C)

amb

UNITS

%

5.0

5.05

5.0

5.0

5.1

5.15

1
2
3

V

µA

30 90 ppm/°C

Ω

0.3 0.8

105

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

to

I

§

R

R

=

S

I

R (max

R

(

min

)

−

I

)

R (min

R (max

)

)

)

4-263

60

40

20

Reverse Current (uA)

0

0

25 °C

85 °C

-40 °C

26

Reverse Voltage (V)

4

Reverse Characteristics

ZRC500

TYPICAL CHARACTERISTICS

1.6

1.4

1.2

1.0

0.8

Forward Voltage (V)

0.6

0.4

0.1 1

Forward Current (mA)

Forward Characteristics

3

2

1

Slope Resistance (Ohms)

0

0.1

Reference Current (mA)

Slope Resistance vs. Current

10 100

T =-40°C

A

T =25°C

A

T =85°C

A

110

1000

5.08

5.06

5.04

5.02

5.00

4.98

Reference Voltage (V)

4.96

4.94

-40 -20 0 20

40 60

Temperature (°C)

Temperature Drift

1000

I

ref=150µA

100

10

1

Slope Resistance (Ohms)

0.1
10

100 1K 10K

Frequency (Hz)

Slope Resistance vs. Frequency

80 100

Iref=1mA

ref

I

=5mA

100K

VR (V)

Vin (V)

6

4

2

0

10

0

5mA

150µA

0

123

1K
5mA

Time (ms)

Transient Response (Single Pulse)

6

VIN

33K
150µA

VR (V)

Vin (V)

4

2

0

10

0

0

5mA

150µA

VIN

VIN

33K

33K

1K

1K

150µA

150µA

5mA

5mA

246

Time (µs)

Transient Response (Repetitive Pulse)

4-264

CONNECTION DIAGRAMS

ZRC500

E-Line, 2 pin Package Suffix – Y

Bottom View

E-Line, 3 pin Package Suffix – A

Bottom View –
Pin 1 floating or connected to pin 3

SOT23 Package Suffix – F

E-Line, 3 pin,Rev Package Suffix – R

Bottom View –
Pin 3 floating or connected to pin 1

SO8 Package Suffix – N8

Top View

Top View –
Pin 1 floating or connected to pin 2

4-265

ZRC500

ORDERING INFORMATION

Part No Tol% Package Partmark
ZRC500A03 3 E-Line • ZRC50003
ZRC500A02 2 E-Line • ZRC50002
ZRC500A01 1 E-Line • ZRC50001

ZRC500F03 3 SOT23 50P

ZRC500F02 2 SOT23 50T

ZRC500F01 1 SOT23 50X

ZRC500N803 3 SO8 ZRC50003

ZRC500N802 2 SO8 ZRC50002

ZRC500N801 1 SO8 ZRC50001

Part No Tol% Package Partmark

ZRC500R03 3 E-Line * ZRC500R3

ZRC500R02 2 E-Line * ZRC500R2

ZRC500R01 1 E-Line * ZRC500R1

ZRC500Y03 3 E-Line † ZRC50003

ZRC500Y02 2 E-Line † ZRC50002

ZRC500Y01 1 E-Line † ZRC50001

* E-Line 3 pin Reversed
† E-Line 2 pin

• E-Line 3 pin

4-266