OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LT1021DIN8-5#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
1
LT1021
1021fc
APPLICATIO S
U
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
Precision Reference
Typical Distribution of Temperature Drift
OUTPUT DRIFT (ppm/°C)
–5
UNITS (%)
24
21
18
15
12
9
6
3
– 0
3
1021 TA01
–3 –1 1 52–4 –2 0 4
DISTRIBUTION
OF THREE RUNS
Basic Positive and Negative Connections
LT1021
OUT
IN
GND
LT1021
(7 AND 10 ONLY)
OUT
IN
GND
V
OUT
–V
OUT
V
IN
NC
R1 =
V
OUT
– (V
–
)
I
LOAD
+ 1.5mA
–15V
(V
–
)
R1
1021 TA01
■
Ultralow Drift: 5ppm/
°
C Max Slope
■
Very Low Noise: <1ppm
P-P
(0.1Hz to 10Hz)
■
100% Noise Tested
■
Pin Compatible with Most Bandgap Reference
Applications, Including Ref 01, Ref 02, LM368,
MC1400 and MC1404 with Greatly Improved
Stability, Noise and Drift
■
Trimmed Output Voltage
■
Operates in Series or Shunt Mode
■
Output Sinks and Sources in Series Mode
■
>100dB Ripple Rejection
■
Minimum Input/Output Differential of 1V
■
Available in 5-Lead Can, N8 and S8 Packages
■
A/D and D/A Converters
■
Precision Regulators
■
Digital Voltmeters
■
Inertial Navigation Systems
■
Precision Scales
■
Portable Reference Standard
The LT
®
1021 is a precision reference with ultralow drift
and noise, extremely good long term stability and almost
total immunity to input voltage variations. The reference
output will both source and sink up to 10mA. Three
voltages are available: 5V, 7V and 10V. The 7V and 10V
units can be used as shunt regulators (two-terminal zeners)
with the same precision characteristics as the three-
terminal connection. Special care has been taken to mini-
mize thermal regulation effects and temperature
induced hysteresis.
The LT1021 references are based on a buried zener diode
structure that eliminates noise and stability problems
associated with surface breakdown devices. Further, a
subsurface zener exhibits better temperature drift and
time stability than even the best bandgap references.
Unique circuit design makes the LT1021 the first IC
reference to offer ultralow drift without the use of high
power on-chip heaters.
The LT1021-7 uses no resistive divider to set output
voltage, and therefore exhibits the best long term stability
and temperature hysteresis. The LT1021-5 and LT1021-
10 are intended for systems requiring a precise 5V or 10V
reference with an initial tolerance as low as ±0.05%.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
2
LT1021
1021fc
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
Input Voltage .......................................................... 40V
Input/Output Voltage Differential ............................ 35V
Output-to-Ground Voltage (Shunt Mode Current Limit)
LT1021-5............................................................. 10V
LT1021-7............................................................. 10V
LT1021-10........................................................... 16V
Trim Pin-to-Ground Voltage
Positive ............................................... Equal to V
OUT
Negative ........................................................... – 20V
Output Short-Circuit Duration
V
IN
= 35V ......................................................... 10 sec
V
IN
≤ 20V ................................................... Indefinite
Operating Temperature Range
Commercial ............................................ 0°C to 70°C
Industrial ........................................... –40°C to 85°C
Military ............................................ – 55°C to 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................ 300°C
WU
U
PACKAGE
/
O
RDER I FOR ATIO
T
JMAX
= 150°C, θ
JA
= 150°C/W,θ
JC
= 45°C/W
TOP VIEW
NC*
NC*
NC*
V
IN
V
OUT
TRIM
**
NC*
GND
8
7
6
5
3
2
1
4
H PACKAGE
8-LEAD TO-5 METAL CAN
T
JMAX
= 130°C, θ
JA
= 130°C/W (N)
T
JMAX
= 130°C, θ
JA
= 150°C/W (S)
(Note 1)
1
2
3
4
8
7
6
5
TOP VIEW
DNC*
V
IN
DNC*
GND
DNC*
DNC*
V
0UT
TRIM**
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
*CONNECTED INTERNALLY. DO NOT CONNECT EXTERNAL CIRCUITRY TO THESE PINS.
**NO TRIM PIN ON LT1021-7. DO NOT CONNECT EXTERNAL CIRCUITRY TO PIN 5 ON LT1021-7
ORDER PART NUMBER
*CONNECTED INTERNALLY. DO NOT CONNECT EXTERNAL CIRCUITRY TO THESE PINS.
**NO TRIM PIN ON LT1021-7. DO NOT CONNECT EXTERNAL CIRCUITRY TO PIN 5 ON LT1021-7
OBSOLETE
LT1021BCH-5
LT1021BMH-5
LT1021CCH-5
LT1021CMH-5
LT1021BMH-10
LT1021DCH-5
LT1021DMH-5
LT1021BCH-7
LT1021BMH-7
LT1021DCH-7
LT1021DMH-7
LT1021BCH-10
LT1021CMH-10
LT1021DCH-10
LT1021DMH-10
LT1021BCN8-5
LT1021CCN8-5
LT1021CIN8-5
LT1021DCN8-5
LT1021DIN8-5
LT1021BCN8-7
LT1021DCN8-7
LT1021BCN8-10
LT1021CCN8-10
LT1021CIN8-10
LT1021DCN8-10
LT1021DIN8-10
2105
2107
2110
N8 ORDER PART NUMBER
LT1021DCS8-5
LT1021DCS8-7
LT1021DCS8-10
S8 ORDER PART NUMBER
S8 PART MARKING
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
3
LT1021
1021fc
E
LECTR
IC
AL C CHARA TERIST
ICS
LT1021-5
PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Voltage (Note 2) LT1021C-5 4.9975 5.000 5.0025 V
LT1021B-5/LT1021D-5 4.9500 5.000 5.0500 V
Output Voltage Temperature Coefficient (Note 3) T
MIN
≤ T
J
≤ T
MAX
LT1021B-5 ● 2 5 ppm/°C
LT1021C-5/LT1021D-5
● 3 20 ppm/°C
Line Regulation (Note 4) 7.2V ≤ V
IN
≤ 10V 4 12 ppm/V
● 20 ppm/V
10V ≤ V
IN
≤ 40V 2 6 ppm/V
● 10 ppm/V
Load Regulation (Sourcing Current) 0 ≤ I
OUT
≤ 10mA 10 20 ppm/mA
(Note 4)
● 35 ppm/mA
Load Regulation (Sinking Current) 0 ≤ I
OUT
≤ 10mA 60 100 ppm/mA
(Note 4)
● 150 ppm/mA
Supply Current 0.8 1.2 mA
● 1.5 mA
Output Voltage Noise (Note 6) 0.1Hz ≤ f ≤ 10Hz 3.0 µV
P-P
10Hz ≤ f ≤ 1kHz 2.2 3.5 µV
RMS
Long Term Stability of Output Voltage (Note 7) ∆t = 1000Hrs Noncumulative 15 ppm
Temperature Hysteresis of Output ∆T = ±25°C 10 ppm
LT1021-7
PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Voltage (Note 2) 6.95 7.00 7.05 V
Output Voltage Temperature Coefficient (Note 3) T
MIN
≤ T
J
≤ T
MAX
LT1021B-7 ● 2 5 ppm/°C
LT1021D-7
● 3 20 ppm/°C
Line Regulation (Note 4) 8.5V ≤ V
IN
≤ 12V 1.0 4 ppm/V
● 2.0 8 ppm/V
12V ≤ V
IN
≤ 40V 0.5 2 ppm/V
● 1.0 4 ppm/V
Load Regulation (Sourcing Current) 0 ≤ I
OUT
≤ 10mA 12 25 ppm/mA
(Note 4)
● 40 ppm/mA
Load Regulation (Shunt Mode) 1.2mA ≤ I
SHUNT
≤ 10mA 50 100 ppm/mA
(Notes 4, 5)
● 150 ppm/mA
Supply Current (Series Mode) 0.75 1.2 mA
● 1.5 mA
Minimum Current (Shunt Mode) V
IN
is Open 0.7 1.0 mA
● 1.2 mA
Output Voltage Noise (Note 6) 0.1Hz ≤ f ≤ 10Hz 4.0 µV
P-P
10Hz ≤ f ≤ 1kHz 2.5 4.0 µV
RMS
Long Term Stability of Output Voltage (Note 7) ∆t = 1000Hrs Noncumulative 7 ppm
Temperature Hysteresis of Output ∆T = ±25°C 3 ppm
The ● denotes specifications that apply over the full operating temperature
range, otherwise specifications are T
A
= 25°C. V
IN
= 10V, I
OUT
= 0, unless otherwise noted.
The
● denotes specifications that apply over the full operating temperature range, otherwise specifications are T
A
= 25°C.
V
IN
= 12V, I
OUT
= 0, unless otherwise noted.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LT1021DIN8-5#PBF

Mfr. #:
Buy LT1021DIN8-5#PBF
Manufacturer:
Analog Devices Inc.
Description:
Voltage References Prec 5V Ref 20ppm/C
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet