The MAX31725, MAX31726 temperature sensors provides temperature measurements with an accuracy of up to +-0.5°C. Extended format allows for high temperature readings up to 150°C. The MAX31725 can operate in a low powered mode by utilizing the shutdown and one-shot mode. Supports two-wire serial, I2C bus communications. 8-pin TQDFN 3x3 mm package. Accuracy is +-0.5°C from -40°C to +105°C (-40°F to +221°). The operating temperature range is -55°C to +150°C (-67°F to +302°). VDD is 2.5V to 3.7V.

Dependents:   MAX31725_High_Temperature_Accurate_IC

Files at this revision

API Documentation at this revision

Comitter:
phonemacro
Date:
Wed Apr 10 17:07:21 2019 +0000
Parent:
22:692515ac2bb7
Commit message:
Update comments

Changed in this revision

max31725.h Show annotated file Show diff for this revision Revisions of this file
diff -r 692515ac2bb7 -r 3fa31b45fa1a max31725.h
--- a/max31725.h	Tue Apr 09 22:58:02 2019 +0000
+++ b/max31725.h	Wed Apr 10 17:07:21 2019 +0000
@@ -69,65 +69,66 @@
 #define MAX31725_CFG_TIMEOUT_DISABLE  (0X01 << 6)
 #define MAX31725_CFG_ONE_SHOT_START   (0X01 << 7)
 
-
-#define MAX31725_I2C_SLAVE_ADR_00 (0x90 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_01 (0x92 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_02 (0x82 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_03 (0x80 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_04 (0x94 >> 1)
-
-#define MAX31725_I2C_SLAVE_ADR_05 (0x96 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_06 (0x86 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_07 (0x84 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_08 (0xB4 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_09 (0xB6 >> 1)
-
-#define MAX31725_I2C_SLAVE_ADR_10 (0xA6 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_11 (0xA4 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_12 (0xB0 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_13 (0xB2 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_14 (0xA2 >> 1)
-
-#define MAX31725_I2C_SLAVE_ADR_15 (0xA0 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_16 (0x98 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_17 (0x9A >> 1)
-#define MAX31725_I2C_SLAVE_ADR_18 (0x8A >> 1)
-#define MAX31725_I2C_SLAVE_ADR_19 (0x88 >> 1)
+                                               /* A1  A2  A3  */
+#define MAX31725_I2C_SLAVE_ADR_00 (0x90 >> 1)  /* GND GND GND */
+#define MAX31725_I2C_SLAVE_ADR_01 (0x92 >> 1)  /* GND GND VDD */
+#define MAX31725_I2C_SLAVE_ADR_02 (0x82 >> 1)  /* GND GND SCL */
+#define MAX31725_I2C_SLAVE_ADR_03 (0x80 >> 1)  /* GND GND SDA */
+#define MAX31725_I2C_SLAVE_ADR_04 (0x94 >> 1)  /* GND VDD GND */
+                                              
+#define MAX31725_I2C_SLAVE_ADR_05 (0x96 >> 1)  /* GND VDD VDD */
+#define MAX31725_I2C_SLAVE_ADR_06 (0x86 >> 1)  /* GND VDD SCL */
+#define MAX31725_I2C_SLAVE_ADR_07 (0x84 >> 1)  /* GND VDD SDA */
+#define MAX31725_I2C_SLAVE_ADR_08 (0xB4 >> 1)  /* GND SCL GND */
+#define MAX31725_I2C_SLAVE_ADR_09 (0xB6 >> 1)  /* GND SCL VDD */
+                                              
+#define MAX31725_I2C_SLAVE_ADR_10 (0xA6 >> 1)  /* GND SCL SCL */
+#define MAX31725_I2C_SLAVE_ADR_11 (0xA4 >> 1)  /* GND SCL SDA */
+#define MAX31725_I2C_SLAVE_ADR_12 (0xB0 >> 1)  /* GND SDA GND */
+#define MAX31725_I2C_SLAVE_ADR_13 (0xB2 >> 1)  /* GND SDA VDD */
+#define MAX31725_I2C_SLAVE_ADR_14 (0xA2 >> 1)  /* GND SDA SCL */
+                                              
+#define MAX31725_I2C_SLAVE_ADR_15 (0xA0 >> 1)  /* GND SDA SDA */
+#define MAX31725_I2C_SLAVE_ADR_16 (0x98 >> 1)  /* VDD GND GND */
+#define MAX31725_I2C_SLAVE_ADR_17 (0x9A >> 1)  /* VDD GND VDD */
+#define MAX31725_I2C_SLAVE_ADR_18 (0x8A >> 1)  /* VDD GND SCL */
+#define MAX31725_I2C_SLAVE_ADR_19 (0x88 >> 1)  /* VDD GND SDA */
+                                              
+#define MAX31725_I2C_SLAVE_ADR_20 (0x9C >> 1)  /* VDD VDD GND */
+#define MAX31725_I2C_SLAVE_ADR_21 (0x9E >> 1)  /* VDD VDD VDD */
+#define MAX31725_I2C_SLAVE_ADR_22 (0x8E >> 1)  /* VDD VDD SCL */
+#define MAX31725_I2C_SLAVE_ADR_23 (0x8C >> 1)  /* VDD VDD SDA */
+#define MAX31725_I2C_SLAVE_ADR_24 (0xBC >> 1)  /* VDD SCL GND */
+                                              
+#define MAX31725_I2C_SLAVE_ADR_25 (0xBE >> 1)  /* VDD SCL VDD */
+#define MAX31725_I2C_SLAVE_ADR_26 (0xAE >> 1)  /* VDD SCL SCL */
+#define MAX31725_I2C_SLAVE_ADR_27 (0xAC >> 1)  /* VDD SCL SDA */
+#define MAX31725_I2C_SLAVE_ADR_28 (0xB8 >> 1)  /* VDD SDA GND */
+#define MAX31725_I2C_SLAVE_ADR_29 (0xBA >> 1)  /* VDD SDA VDD */
+                                              
+#define MAX31725_I2C_SLAVE_ADR_30 (0xAA >> 1)  /* VDD SDA SCL */
+#define MAX31725_I2C_SLAVE_ADR_31 (0xA8 >> 1)  /* VDD SDA SDA */
 
-#define MAX31725_I2C_SLAVE_ADR_20 (0x9C >> 1)
-#define MAX31725_I2C_SLAVE_ADR_21 (0x9E >> 1)
-#define MAX31725_I2C_SLAVE_ADR_22 (0x8E >> 1)
-#define MAX31725_I2C_SLAVE_ADR_23 (0x8C >> 1)
-#define MAX31725_I2C_SLAVE_ADR_24 (0xBC >> 1)
 
-#define MAX31725_I2C_SLAVE_ADR_25 (0xBE >> 1)
-#define MAX31725_I2C_SLAVE_ADR_26 (0xAE >> 1)
-#define MAX31725_I2C_SLAVE_ADR_27 (0xAC >> 1)
-#define MAX31725_I2C_SLAVE_ADR_28 (0xB8 >> 1)
-#define MAX31725_I2C_SLAVE_ADR_29 (0xBA >> 1)
-
-#define MAX31725_I2C_SLAVE_ADR_30 (0xAA >> 1)
-#define MAX31725_I2C_SLAVE_ADR_31 (0xA8 >> 1)
+#define MAX31726_I2C_SLAVE_ADR_00 (0x98 >> 1)  /* GND GND */
+#define MAX31726_I2C_SLAVE_ADR_01 (0x9A >> 1)  /* GND VDD */
+#define MAX31726_I2C_SLAVE_ADR_02 (0x8A >> 1)  /* GND SCL */
+#define MAX31726_I2C_SLAVE_ADR_03 (0x88 >> 1)  /* GND SDA */
+#define MAX31726_I2C_SLAVE_ADR_04 (0x9C >> 1)  /* VDD GND */
 
-#define MAX31726_I2C_SLAVE_ADR_00 (0x98 >> 1)
-#define MAX31726_I2C_SLAVE_ADR_01 (0x9A >> 1)
-#define MAX31726_I2C_SLAVE_ADR_02 (0x8A >> 1)
-#define MAX31726_I2C_SLAVE_ADR_03 (0x88 >> 1)
-#define MAX31726_I2C_SLAVE_ADR_04 (0x9C >> 1)
+#define MAX31726_I2C_SLAVE_ADR_05 (0x9E >> 1)  /* VDD VDD */
+#define MAX31726_I2C_SLAVE_ADR_06 (0x8E >> 1)  /* VDD SCL */
+#define MAX31726_I2C_SLAVE_ADR_07 (0x8C >> 1)  /* VDD SDA */
+#define MAX31726_I2C_SLAVE_ADR_08 (0xBC >> 1)  /* SCL GND */
+#define MAX31726_I2C_SLAVE_ADR_09 (0xBE >> 1)  /* SCL VDD */
 
-#define MAX31726_I2C_SLAVE_ADR_05 (0x9E >> 1)
-#define MAX31726_I2C_SLAVE_ADR_06 (0x8E >> 1)
-#define MAX31726_I2C_SLAVE_ADR_07 (0x8C >> 1)
-#define MAX31726_I2C_SLAVE_ADR_08 (0xBC >> 1)
-#define MAX31726_I2C_SLAVE_ADR_09 (0xBE >> 1)
+#define MAX31726_I2C_SLAVE_ADR_10 (0xAE >> 1)  /* SCL SCL */
+#define MAX31726_I2C_SLAVE_ADR_11 (0xAC >> 1)  /* SCL SDA */
+#define MAX31726_I2C_SLAVE_ADR_12 (0xB8 >> 1)  /* SDA GND */
+#define MAX31726_I2C_SLAVE_ADR_13 (0xBA >> 1)  /* SDA VDD */
+#define MAX31726_I2C_SLAVE_ADR_14 (0xAA >> 1)  /* SDA SCL */
 
-#define MAX31726_I2C_SLAVE_ADR_10 (0xAE >> 1)
-#define MAX31726_I2C_SLAVE_ADR_11 (0xAC >> 1)
-#define MAX31726_I2C_SLAVE_ADR_12 (0xB8 >> 1)
-#define MAX31726_I2C_SLAVE_ADR_13 (0xBA >> 1)
-#define MAX31726_I2C_SLAVE_ADR_14 (0xAA >> 1)
-
-#define MAX31726_I2C_SLAVE_ADR_15 (0xA8 >> 1)
+#define MAX31726_I2C_SLAVE_ADR_15 (0xA8 >> 1)  /* SDA SDA */
 
 
 #define MAX31725_CF_LSB           (0.00390625F)