From 019938b55400c278752173d936e90bd2f9e1397b Mon Sep 17 00:00:00 2001
From: Oliver Walters <oliver@currawongeng.com>
Date: Tue, 16 Aug 2016 11:12:47 +1000
Subject: [PATCH] Added LT6657 series of precision voltage references

**Datasheet**
http://cds.linear.com/docs/en/datasheet/6657fb.pdf
---
 library/references.dcm | 36 ++++++++++++++++++++++++++++++++++++
 library/references.lib | 24 ++++++++++++++++++++++++
 2 files changed, 60 insertions(+)

diff --git a/library/references.dcm b/library/references.dcm
index 4a5110c9..610a307d 100644
--- a/library/references.dcm
+++ b/library/references.dcm
@@ -78,6 +78,42 @@ K Precision Micropower Low Dropout Voltage Reference 2.5V
 F http://www.ti.com/lit/ds/symlink/lm4125.pdf
 $ENDCMP
 #
+$CMP LT6657AHMS8-2.5
+D Precision voltage reference, 40V input, 10mA output, 1.5ppm/C drift, 2.5V output
+K voltage reference vref
+F http://cds.linear.com/docs/en/datasheet/6657fb.pdf
+$ENDCMP
+#
+$CMP LT6657AHMS8-3
+D Precision voltage reference, 40V input, 10mA output, 1.5ppm/C drift, 3.0V output
+K voltage reference vref
+F http://cds.linear.com/docs/en/datasheet/6657fb.pdf
+$ENDCMP
+#
+$CMP LT6657AHMS8-5
+D Precision voltage reference, 40V input, 10mA output, 1.5ppm/C drift, 5.0V output
+K voltage reference vref
+F http://cds.linear.com/docs/en/datasheet/6657fb.pdf
+$ENDCMP
+#
+$CMP LT6657BHMS8-2.5
+D Precision voltage reference, 40V input, 10mA output, 3.0ppm/C drift, 2.5V output
+K voltage reference vref
+F http://cds.linear.com/docs/en/datasheet/6657fb.pdf
+$ENDCMP
+#
+$CMP LT6657BHMS8-3
+D Precision voltage reference, 40V input, 10mA output, 3.0ppm/C drift, 3.0V output
+K voltage reference vref
+F http://cds.linear.com/docs/en/datasheet/6657fb.pdf
+$ENDCMP
+#
+$CMP LT6657BHMS8-5
+D Precision voltage reference, 40V input, 10mA output, 3.0ppm/C drift, 5.0V output
+K voltage reference vref
+F http://cds.linear.com/docs/en/datasheet/6657fb.pdf
+$ENDCMP
+#
 $CMP MAX6100
 D Low-dropout high current voltage reference, 1.800V, ±0.4% accuracy, SOT-23 package 
 K voltage reference ldo
diff --git a/library/references.lib b/library/references.lib
index e4d21fea..91060bee 100644
--- a/library/references.lib
+++ b/library/references.lib
@@ -167,6 +167,30 @@ X Vout 5 400 0 150 L 40 40 1 1 P
 ENDDRAW
 ENDDEF
 #
+# LT6657AHMS8-2.5
+#
+DEF LT6657AHMS8-2.5 U 0 40 Y Y 1 F N
+F0 "U" -300 250 50 H V L CNN
+F1 "LT6657AHMS8-2.5" 100 250 50 H V L CNN
+F2 "Housings_SSOP:MSOP-8_3x3mm_Pitch0.65mm" 100 350 50 H I L CNN
+F3 "" 50 -350 50 H V C CNN
+ALIAS LT6657BHMS8-2.5 LT6657AHMS8-3 LT6657BHMS8-3 LT6657AHMS8-5 LT6657BHMS8-5
+$FPLIST
+ MSOP*3x3mm*Pitch0.65mm*
+$ENDFPLIST
+DRAW
+S -300 200 300 -200 0 1 10 f
+X DNC 1 400 -100 100 L 50 50 1 1 N N
+X Vin 2 0 300 100 D 50 50 1 1 W
+X ~SHDN 3 -400 -100 100 R 50 50 1 1 I
+X GND 4 0 -300 100 U 50 50 1 1 W
+X DNC 5 -400 0 100 R 50 50 1 1 N N
+X OUT 6 400 0 100 L 50 50 1 1 w
+X DNC 7 -400 100 100 R 50 50 1 1 N N
+X DNC 8 400 100 100 L 50 50 1 1 N N
+ENDDRAW
+ENDDEF
+#
 # MAX6100
 #
 DEF MAX6100 U 0 40 Y Y 1 F N