Diodes ZXRE330 User Manual
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCES
Description
The ZXRE330 is a low knee current 3.3V voltage reference.
Offering tight tolerances and sharp knee characteristics –
consuming only 1µA when the 3.3V reference voltage can no
longer be maintained.
Excellent performance is maintained over the 1µA to 5mA
operating current range. The device has been designed to be
highly tolerant of capacitive loads so maintaining excellent stability.
It’s available in small outline SOT23 and TO92 packages This
device offers a pin for pin compatible alternative to industry
standard shunt voltage reference.
Pin Assignments
Cathode
Anode
* Pin 1 mu st be left floating or con nected to pin 2
* Pin 2 must be left floating or connected to pin 1
ZXRE330xSA (SOT23)
3
1
2
Top view
ZXRE330xV (TO92)
+
3 Cathode
+
2 *
+
1 Anode
(Top View )
ZXRE330
*
Features
Small packages: SOT23 & TO92
No output capacitor required
Output voltage tolerance
ZXRE330E ±2% at +25°C
ZXRE330A ±0.5% at +25°C
Low output noise
(10Hz to 10 kHz).............. 55µV
Wide operating current range 1µA to 5mA
Extended temperature range -40°C to +85°C
Low temperature coefficient 20ppm/°C (Typ)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
RMS
Applications
Battery powered equipment
Precision power supplies
Portable instrumentation
Portable communications devices
Notebook and palmtop computers
Data acquisition systems
Low current voltage clamps
ZXRE330
Document number: DS36772 Rev. 2 - 2
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www.diodes.com
January 2014
© Diodes Incorporated
ZXRE330
Typical Applications Circuit
Absolute Maximum Ratings (@T
Parameter Rating Unit
Continuous Reverse Current 10 mA
Continuous Forward Current 10 mA
Operating Junction Temperature -40 to +150 °C
Storage Temperature -65 to +150 °C
Note: 4. Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum rating, for extended periods, may reduce
device reliability. Unless otherwise stated voltages specified are relative to the ANODE pin.
= +25°C, unless otherwise specified.) (Voltages to GND Unless Otherwise Stated)
A
Package Thermal Data
P
Package
SOT23 415°C/W 300mW
TO92 180°C/W 700mW
θ
JA
T
AMB
Recommended Operating Conditions (@T
Parameter Min. Max. Units
Reverse Current 0.002 5 mA
Operating Ambient Temperature Range -40 +85 °C
ZXRE330
Document number: DS36772 Rev. 2 - 2
DIS
= +25°C, TJ = +150°C
= +25°C, unless otherwise specified.)
A
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© Diodes Incorporated
Electrical Characteristics (@T
Symbol Parameter
Reverse breakdown voltage
V
REF
I
ROFF
∆VR/∆T
∆VR
Reverse breakdown voltage tolerance
Off state reverse current
Average reverse breakdown voltage
temperature coefficient
Reverse breakdown
change with current
= +25°C, unless otherwise specified.)
A
Conditions
T
I
= 100μA
R
I
= 100μA
R
V = V
I
R
REF
= 5mA
*0.9
IR = 100µA
IR = 10µA
< 100uA
2uA <I
R
100uA < IR < 5mA
ZXRE330
AMB
+25°C 3.3 — V
+25°C
ZXRE330A
ZXRE330E ±66
-40 to +85°C ±99
+25°C 0.5 —
-40 to +85°C — 1
-40 to +85°C
25°C 0.2 —
-40 to +85°C — 0.6
25°C 10 —
-40 to +85°C — 20
Typ. E Limits Units
±16.5
—
±20 — —
±15 ±150 ppm/°C
±15 — —
mV
µA
mV
I
Minimal Operating Current — 1 2 µA
Dynamic output impedance
Noise voltage
Long term stability (non cumulative)
Thermal hysteresis ∆T = -40°C to +85°C 0.08 — %
IR = 2mA, f = 120Hz, IAC = 0.1IR
= 100µA
I
R
10Hz < f < 10kHz
t = 1000Hrs, IR = 100µA
2 — Ω
55 —
—
—
µV
ppm
RMS
V
RMIN
ZR
en
VR
HYST
ZXRE330
Document number: DS36772 Rev. 2 - 2
3 of 8
www.diodes.com
January 2014
© Diodes Incorporated
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