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REF80 Datasheet(PDF) 4 Page - Texas Instruments

Part # REF80
Description  REF80 Temperature-Controlled Buried Zener Reference with 0.05ppm/°C Drift and < 1ppm Stability
PDF  23 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

REF80 Datasheet(HTML) 4 Page - Texas Instruments

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5 Pin Configuration and Functions
1
3
4
8
9
13
14
18
19
REF80
REF_Z
REF_Z
NC
NC
NC
REF_GND
REF_GND
HEATM
HEATM
HEATP
Figure 5-1. NAJ Package
20-Pin LCCC
Top View
Table 5-1. Pin Functions
PIN
TYPE
DESCRIPTION
NAME
Number
NC
1, 2, 6-12
No Connect
No connect pin. Leave this pin floating or connected to GND.
T-SET
3
Input
Connect resistor to adjust the heater temperature. Leave the pin
floating to use factory programmed heater set point. Refer Section
7.3.1 for more details.
REF_Z
4,5
Output
Reference voltage output. Connect an output capacitor between
10μF to 100μF for the best performance.
GND
13
GND
This pin should be shorted to REF_GND pin.
REF_GND
14, 15
Ground
Reference ground pin. This pin carries the current through the
buried zener reference.
HEATM
16, 17
Power
Heater power supply negative connection.
HEATP
18
Power
Heater power supply positive connection.
VDD
19
Power
Power supply for buried zener core and buffer.
OP_STBL
20
Output
Active high output. Indicates the internal heater is stabilized at
factory programmed temperature.
REF80
SNAS856 – SEPTEMBER 2024
www.ti.com
4
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Copyright © 2024 Texas Instruments Incorporated
Product Folder Links: REF80



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