Microsemi Corporation LX1004C-1.2DM, LX1004C-2.5LP, LX1004C-1.2LP Datasheet
DESCRIPTION KEY FEATURES
■ GUARANTEED ±4mV INITIAL ACCURACY
LX1004-1.2
■ GUARANTEED ±20mV INITIAL ACCURACY
LX1004-2.5
■ GUARANTEED 10µA OPERATING CURRENT
■ GUARANTEED TEMPERATURE
PERFORMANCE
■ OPERATES UP TO 20mA
■ VERY LOW DYNAMIC IMPEDANCE
The LX1004 Micropower Voltage
References are two terminal bandgap
reference diodes designed and
optimized for accurate low power
operation in portable and other
power sensitive systems. Operating
currents are guaranteed from as low
as 10µA up to 20mA giving designers
a great deal of flexibility in optimizing power consumption, noise and
ultimate application performance.
The LX1004 is available in fixed
1.2V and 2.5V reference values.
APPLICATIONS
■■
■■
■ PORTABLE METER REFERENCES
■ PORTABLE TEST INSTRUMENTS
■ BATTERY OPERATED SYSTEMS
■ CURRENT LOOP INSTRUMENTATION
Process and circuit design optimization provide for high accuracy with
initial tolerance values of ±4mV and
±20mV, respectively. Complementing
their initial accuracy, the bandgap
reference is temperature compensated
to deliver 20ppm performance over
the 0° to 70°C operating temperature
range.
The LX1004 from Linfinity is a pinfor-pin replacement for the LT1004
and LM385 families of voltage
references.
PACKAGE ORDER INFORMATION
T
A
(°C)
0 to 70
1.2V ±4mV LX1004CDM-1.2 LX1004CLP-1.2
2.5V ±20mV LX1004CDM-2.5 LX1004CLP-2.5
DM
Plastic TO-92
3-pin
LP
Plastic SOIC
8-pin
Reference
Voltage
Initial
Tolerance
PRODUCT HIGHLIGHT
1.2V & 2.5V M
ICROPOWER VOLTAGE REFERENCES
P RODUCTION DATA SHEET
THE INFINITE POWER OF INNOVATION
Copyright © 1996
Rev. 1.2 6/96
FOR FURTHER INFORMATION CALL (714) 898-8121
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841
LX1004
LIN DOC #:
1004
1
M
ICROPOWER REFERENCE FROM
9V BATTERY
MICROPOWER REFERENCE
FROM 2 CELL BATTERY
1.235V
LX1004-1.2
V
2V
39k
2.5V
LX1004-2.5
V
9V
200k
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX1004CDM-2.5T)
1.2V & 2.5V M
ICROPOWER VOLTAGE REFERENCES
LX1004
PRODUCT DATABOOK 1996/1997
Copyright © 1996
Rev. 1.2 6/96
2
P
RODUCTION DATA SHEET
ABSOLUTE MAXIMUM RATINGS (Note 1) PACKAGE PIN OUTS
Reverse Breakdown Current .................................................................................... 30mA
Forward Current ........................................................................................................ 10mA
Operating Temperature Range ....................................................................... 0°C to 70°C
Storage Temperature Range ...................................................................... -65°C to 150°C
Lead Temperature (soldering, 10 seconds) ............................................................. 300°C
Note 1. Values beyond which damage may occur. All voltages are specified with respect to
ground, and all currents are positive into the specified terminal
THERMAL DATA
DM PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθ
θθ
θ
JA
165ºC/W
LP PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθ
θθ
θ
JA
165ºC/W
The θ
JA
numbers are guidelines for the thermal performance of the device/pc-board system.
All of the above assume no ambient airflow.
1. ANODE
2. CATHODE
3. N/C
LP PACKAGE
(Top View)
8.
7.
6.
5.
1.
2.
3 .
4.
N/C
N/C
N/C
ANODE
CATHODE
N/C
CATHODE
N/C
DM PACKAGE
(Top View)
1.2V & 2.5V M
ICROPOWER VOLTAGE REFERENCES
LX1004
PRODUCT DATABOOK 1996/1997
3
Copyright © 1996
Rev. 1.2 6/96
P RODUCTION DATA SHEET
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply to TA = 25ºC for LX1004C. Typ. number represents TA = 25ºC value.
Parameter
Symbol
Test Conditions Units
LX1004 - 1.2
Min. Typ. Max.
1.231 1.235 1.239 V
1.225 1.235 1.245 V
20 ppm/°C
810µA
1mV
1.5 mV
10 mV
20 mV
0.2 0.6 Ω
1.5 Ω
60 µV
20 ppm/kHr
Reverse Breakdown Voltage VZIR = 100µA, TA = 25°C
0°≤ T
A
≤ 70°C
Average Temperature Coefficient ∆V
ZIMIN
≤ IR ≤ 20mA
∆Temp
Minimum Operating Current I
MIN
0°≤ TA ≤ 70°C
Reverse Breakdown Voltage Change I
MIN
≤ IR ≤ 1mA, T
A
= 25°C
with Current ∆V
ZIMIN
≤ IR ≤ 1mA, 0° ≤ TA ≤ 70°C
∆I
R
1mA ≤ IR ≤ 20mA, T
A
= 25°C
1mA ≤ IR ≤ 20mA, 0° ≤ TA ≤ 70°C
Reverse Dynamic Impedance r
zIR
= 100µA, TA = 25°C
I
R
= 100µA, 0° ≤ TA ≤ 70°C
Wide Band Noise (RMS) e
nIR
= 100µA; 10Hz ≤ f ≤ 10kHz
Long Term Stability ∆V
ZIR
= 100µA; TA = 25°C ± 0.1°C
∆Time
GRAPH / CURVE INDEX
Characteristic Curves — LX1004-1.2V
FIGURE #
1. TEMPERATURE DRIFT
2. REVERSE CHARACTERISTICS
3. REVERSE VOLTAGE CHANGE
4. FORWARD CHARACTERISTICS
5. REVERSE DYNAMIC IMPEDANCE
6. NOISE VOLTAGE
7. RESPONSE TIME
Parameter
Symbol
Test Conditions Units
LX1004 - 2.5
Min. Typ. Max.
2.480 2.500 2.520 V
2.470 2.530 V
20 ppm/°C
12 20 µA
1mV
1.5 mV
10 mV
20 mV
0.2 0.6 Ω
1.5 Ω
120 µV
20 ppm/kHr
Reverse Breakdown Voltage VZIR = 100µA, TA = 25°C
0°≤ T
A
≤ 70°C
Average Temperature Coefficient ∆V
ZIMIN
≤ IR ≤ 20mA
∆Temp
Minimum Operating Current I
MIN
0°≤ TA ≤ 70°C
Reverse Breakdown Voltage Change I
MIN
≤ IR ≤ 1mA, T
A
= 25°C
with Current ∆V
ZIMIN
≤ IR ≤ 1mA, 0° ≤ TA ≤ 70°C
∆I
R
1mA ≤ IR ≤ 20mA, T
A
= 25°C
1mA ≤ IR ≤ 20mA, 0° ≤ TA ≤ 70°C
Reverse Dynamic Impedance r
zIR
= 100µA, TA = 25°C
I
R
= 100µA, 0° ≤ TA ≤ 70°C
Wide Band Noise (RMS) e
nIR
= 100µA; 10Hz ≤ f ≤ 10kHz
Long Term Stability ∆V
ZIR
= 100µA; TA = 25°C ± 0.1°C
∆Time
LX1004 - 1.2
LX1004 - 2.5
Characteristic Curves — LX1004-2.5V
FIGURE #
1. RESPONSE TIME
2. REVERSE CHARACTERISTICS
3. FORWARD CHARACTERISTICS
4. TEMPERATURE DRIFT
5. NOISE VOLTAGE
6. REVERSE DYNAMIC IMPEDANCE
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