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REF54 数据表(PDF) 4 Page - Texas Instruments

部件名 REF54
功能描述  REF54 0.8ppm/°C Maximum Drift, 0.11ppmp-p 1/f Noise, 380μA Current, Precision Voltage Reference
PDF  44 Pages
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制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

REF54 数据表(HTML) 4 Page - Texas Instruments

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5 Pin Configuration and Functions
Not to scale
VREF
DNC
VIN
NIC
GND
EN
1
2
3
6
5
4
NR
DNC
7
8
Figure 5-1. D Package
8-Pin SOIC, VSSOP
Top View
VIN
NR
GND_S
NC
VREF_F
VREF_S
NC
1
2
3
4
8
7
6
5
GND_F
Figure 5-2. FKH Package
8-Pin LCCC
Top View
Table 5-1. Pin Functions
PIN
TYPE
DESCRIPTION
NAME
D
FKH
EN
1
Input
Device enable control. Low level input disables the reference output and
device enters shutdown mode. Device can be enabled by driving voltage >
1.6V or leaving the EN pin floating. See section Section 8.3.1 for additional
details.
VIN
2
2
Power
Input supply voltage connection. Connect a minimum 0.1μF decoupling
capacitor to ground for the best performance. See section Section 9.3 for
additional details.
NIC
3
No Connect
Not internally connected. Pin can be left floating or to a known potential.
GND_F
3
Ground
Ground connection
GND
4
Ground
Ground connection.
GND_S
4
Ground
Ground sense connection.
NR
5
1
Output
Noise reduction pin. Connect a decoupling capacitor to ground for improved
noise performance. The pin can be left floating. See section Section 8.3.2
for additional details.
NC
5,8
NC
Connect this pin to Ground or leave floating.
VREF
6
Output
Reference voltage output. Connect a capacitor between 1μF to 100μF to
ground for best performance.
VREF_S
6
Output
Reference voltage output sense connection.
VREF_F
7
Output
Reference voltage output force connection. Connect a output capacitor
between 1μF to 100μF for the best performance.
DNC
7, 8
Do not Connect
Leave the pin floating or connect to ground
REF54
SNVSCN7D – NOVEMBER 2023 – REVISED JUNE 2026
www.ti.com
4
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Copyright © 2026 Texas Instruments Incorporated
Product Folder Links: REF54



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