Datasheet ZRC400A01, ZRC400A02, ZRC400A03, ZRC400F01, ZRC400F02 Datasheet (Zetex)

PRECISION 4.096 VOLT LOW KNEE CURRENT
VOLTAGE REFERENCE

ISSUE 3 - MARCH 1998

ZRC400

DEVICE DESCRIPTION

The ZRC400 uses a bandgap circuit design to
achieve a precision micropower voltage
reference of 4.096 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 ZRC400 design provides a stable voltage
without an external capacitor and is stable
with capacitive loads. The ZRC400 is
recommended for operation between 23µA
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, 18µA typical

•

Typical TC 30ppm/°C

•

Typical slope resistance 0.4Ω

•

± 3%, 2% and 1% tolerance

•

Industrial temperature range

•

Operating current 23µA 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

4-257

ZRC400

ABSOLUTE MAXIMUM RATING

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

ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T

Power Dissipation (T

SOT23 330mW
E-Line, 3 pin (TO92) 500mW
E-Line, 2 pin (TO92) 500mW
SO8 625mW

amb

=25°C

amb

=25°C)

SYMBOL PARAMETER

CONDITIONS LIMITS TOL.%UNITS

MIN TYP MAX

V

I
I

R

MIN

R

Reverse Breakdown Voltage

=150µA

I

R

Minimum Operating Current 18 23
Recommended Operating

4.055

4.096

4.014

4.096

3.973

4.096

0.023 5 mA

Current

T

† Average Reverse Breakdown

C

R

S

Z

R

Voltage Temp. Co. I

§ Slope Resistance 0.4 2

R(min)

I

R(max)

to

Reverse Dynamic Impedance IR =1mA

30 90 ppm/°C

0.3 0.8
f = 100Hz
I

=0.1 I

AC

R

E

N

Wideband Noise Voltage

=150µA

I

R

90

f=10Hz to

10kHz

(

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

40

30

20

range.

§

V

Change

(

I

to

I

R

R

=

S

I

R (max

R

(

min

)

I

−

)

R (min

R (max

)

)

)

Reverse Current (uA)

10

0

Reverse Characteristics

4.137

1

4.178

2

4.219

3

25 °C

85 °C

Reverse Voltage (V)

V

µA

Ω

Ω

µV(rms)

-40 °C

501234

4-258

TYPICAL CHARACTERISTICS

ZRC400

1.6

1.4

1.2

1.0

0.8

Forward Voltage (V)

0.6

0.4

0.1 1 10 100 1000

Forward Current (mA)

Forward Characteristics

2

1.5

1

0.5

Slope Resistance (Ohms)

0

0.1

Ta=-40°C

Ta=25°C

Ta= 8 5 °C

110

Reference Current (mA)

Slope Resistance vs. Current

4.10

Iref=100µA

4.09

Reference Voltage (V)

4.08

-20 0 20 40

Temperature (°C)

Temperature Drift

1000

Iref=150µA

100

10

1

Slope Resistance (Ohms)

0.1
10

100 1K 10K 100K

Frequency (Hz)

Slope Resistance vs. Frequency

60 80 100-40

Iref=1mA

Iref=5mA

5mA

150µA

0

200 400 600

1K2
5mA

VIN

39K
150µA

Vout (V)

Vin (V)

4

2

0

10

0

Time (µs)

Transient Response (Single Pulse)

5mA

150µA

206

Vout (V)

Vin (V)

4

2

0

10

0

Tim e (µs )

Transient Response (Repetitive Pulse)

4-259

1K2
5mA

VIN

39K
150µA

4

ZRC400

CONNECTION DIAGRAMS

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

4-260

ORDERING INFORMATION

ZRC400

Part No Tol% Package Partmark
ZRC400A03 3 E-Line • ZRC40003
ZRC400A02 2 E-Line • ZRC40002
ZRC400A01 1 E-Line • ZRC40001

ZRC400F03 3 SOT23 40D

ZRC400F02 2 SOT23 40G

ZRC400F01 1 SOT23 40H

ZRC400N803 3 SO8 ZRC40003

ZRC400N802 2 SO8 ZRC40002

ZRC400N801 1 SO8 ZRC40001

Part No Tol% Package Partmark

ZRC400R03 3 E-Line * ZRC400R3

ZRC400R02 2 E-Line * ZRC400R2

ZRC400R01 1 E-Line * ZRC400R1

ZRC400Y03 3 E-Line † ZRC40003

ZRC400Y02 2 E-Line † ZRC40002

ZRC400Y01 1 E-Line † ZRC40001

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

• E-Line 3 pin

4-261