ZRC400A01STOB

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.

FEATURES

•

Small outline SOT23 , SO8 and TO92

style packages

•

No stabilising capacitor required

•

Low knee current, 18µA typical

•

Typical T

C

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

R

G

nd

PRECISION 4.096 VOLT LOW KNEE CURRENT

VOLTAGE REFERENCE

ISSUE 3 - MARCH 1998

ZRC400

SCHEMATIC DIAGRAM

4-257

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

4.055

4.014

3.973

4.096

4.096

4.096

4.137

4.178

4.219

1

2

3

V

I

MIN

Minimum Operating Current 18 23

µA

I

R

Recommended Operating

Current

0.023 5 mA

T

C

† Average Reverse Breakdown

Voltage Temp. Co. I

R(min)

to

I

R(max)

30 90 ppm/°C

R

S

§ Slope Resistance 0.4 2

Ω

Z

R

Reverse Dynamic Impedance I

R

=1mA

f = 100Hz

I

AC

=0.1 I

R

0.3 0.8

Ω

E

N

Wideband Noise Voltage

I

R

=150µA

f=10Hz to

10kHz

90

µV(rms)

ZRC400

Reverse Characteristics

Reverse Current (uA)

Reverse Voltage (V)

0

10

20

30

40

501234

85 °C

25 °C

-40 °C

†

T

C

=

(

V

R

(

max

)

−

V

R

(

min

)

)

x

1000000

V

R

x

(

T

(

max

)

−

T

(

min

)

)

Note: V

R(max)

- V

R(min)

is the maximum

deviation in reference voltage measured

over the full operating temperature

range.

§

R

S

=

V

R

Change

(

I

R

(

min

)

to

I

R

(

max

)

)

I

R

(

max

)

−

I

R

(

min

)

4-258

Forward Characteristics

Forward Voltage (V)

Forward Current (mA)

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0.1 1 10 100 1000

Slope Resistance (Ohms)

1

0

0.5

1.5

2

0.1

Reference Current (mA)

Slope Resistance vs. Current

110

Vin (V)

0

0

10

2

4

0

Time (µs)

Transient Response (Single Pulse)

200 400 600

Vout (V)

Ta=-40°C

Ta=25°C

Ta = 8 5 ° C

5mA

150µA

Reference Voltage (V)

4.10

4.08

4.09

60 80 100-40

Temperature (°C)

Temperature Drift

-20 0 20 40

Slope Resistance (Ohms)

10

0.1

1

100

1000

10

Frequency (Hz)

Slope Resistance vs. Frequency

100 1K 10K 100K

Vin (V)

0

10

Vout (V)

0

2

4

Transient Response (Repetitive Pulse)

4

Time (µs)

206

Iref=100µA

Iref=150µA

Iref=5mA

5mA

150µA

Iref=1mA

39K

150µA

1K2

5mA

VIN

39K

150µA

1K2

5mA

VIN

ZRC400

TYPICAL CHARACTERISTICS

4-259

ZRC400A01STOB

Mfr. #:

Buy ZRC400A01STOB

Manufacturer:

Diodes Incorporated

Description:

Voltage References 1% 4.096V

Lifecycle:

New from this manufacturer.

Delivery:

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