LM185-2.5/
LM285-2.5/LM385-2.5
ABSOLUTE
AXI U
RATI GS
Storage Temperature Range
LM185-2.5 .................................... – 65°C to 150°C
LM285-2.5 .................................... – 65°C to 150°C
LM385-2.5 .................................... – 65°C to 150°C
Lead Temperature (Soldering, 10 sec.)................ 300°C
Reverse Breakdown Current ................................ 30mA
Forward Current................................................... 10mA
Operating Temperature Range
LM185-2.5 ..................................... –55°C to 125°C
LM285-2.5 ...................................... – 40°C to 85°C
LM385-2.5 ........................................... 0°C to 70°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
NC
NC
NC
1
2
3
4
8
7
6
5
NC
(DO NOT
USE)
NC
S8 PACKAGE
8-LEAD PLASTIC SO
LM185-2.5 PO03
ORDER PART
NUMBER
LM285S8-2.5
LM385S8-2.5
LM385BS8-2.5
PART MARKING
2852
3852
3852B
BOTTOM VIEW
1
H PACKAGE
2-LEAD TO-46 METAL CAN
LM185-2.5 PO01
ELECTRICAL CHARACTERISTICS
SYMBOL
V
Z
PARAMETER
Reverse Breakdown Voltage
CONDITIONS
(See Note 1)
LM185-2.5/285-2.5
MIN
TYP
MAX
2.462
2.500
2.538
2.425
2.462
20
q
T
A
= 25°C, 20µA
≤
I
R
≤
20mA
LM185-2.5/285-2.5
LM385-2.5
LM385B-2.5 (Note 2)
20µA
≤
I
R
≤
20mA (Note 2)
T
MIN
≤
T
A
≤
T
MAX
20µA
≤
I
R
≤
1mA
T
A
= 25°C
T
MIN
≤
T
A
≤
T
MAX
1mA
≤
I
R
≤
20mA
T
A
= 25°C
T
MIN
≤
T
A
≤
T
MAX
∆V
Z
∆Temp
I
MIN
∆V
Z
∆I
R
Average Temperature Coefficient
Minimum Operating Current
Reverse Breakdown Voltage
Change With Current
r
Z
Reverse Dynamic Impedance
I
R
= 100µA (Note 3)
T
A
= 25°C
T
MIN
≤
T
A
≤
T
MAX
10Hz
≤
f
≤
10kHz, I
R
= 100µA
T
A
= 25°C
±
0.1°C, I
R
= 100µA
e
n
∆V
Z
∆Time
Wide Band Noise (RMS)
Long Term Stability
The
q
denotes specifications which apply over the operating temperature
range.
Note 1:
All specifications are for T
A
= 25°C unless otherwise noted. For
the LM185-2.5 T
MIN
= – 55°C and T
MAX
= 125°C. For LM285-2.5, T
MIN
=
– 40°C and T
MAX
= 85°C. For LM385-2.5, T
MIN
= 0°C and T
MAX
= 70°C.
2
U
U
W
W W
U
W
ORDER PART
NUMBER
LM185H-2.5
LM285H-2.5
LM385H-2.5
LM385BH-2.5
(NOTE 2)
BOTTOM VIEW
3
2
1
ORDER PART
NUMBER
LM285Z-2.5
LM385Z-2.5
LM385BZ-2.5
(NOTE 2)
2
Z PACKAGE
3-LEAD TO-92 PLASTIC
LM185-2.5 PO02
LM385-2.5/385B-2.5
MIN
TYP MAX
UNITS
V
V
V
ppm/°C
2.500 2.575
2.500 2.538
20
8
20
1.0
1.5
10
20
8
20
2.0
2.5
20
25
µA
mV
mV
mV
mV
Ω
Ω
µV
ppm/kHr
q
q
0.2
q
0.6
1.5
0.4
120
20
1.0
1.5
120
20
Note 2:
For very low initial tolerance, consult LT1004 data sheet. The
LT1004 is a low cost, pin for pin substitution device. For guaranteed
temperature coefficient consult the LT1034-2.5 data sheet.
Note 3:
Guaranteed but not tested.
LINER [ LINEAR TECHNOLOGY ]
