link to page 14 Data SheetAD8318ParameterConditionsMinTypMaxUnit VSET INTERFACE VSET (Pin 7) Nominal Input Range P = 0 dBm; measurement mode2 0.5 IN P = −65 dBm; measurement mode2 2.1 V IN Logarithmic Scale Factor −0.04 dB/mV Bias Current Source P = −10 dBm; V = 2.1 V 2.5 μA IN SET TEMPERATURE REFERENCE TEMP (Pin 13) Output Voltage T = 25°C, R = 10 kΩ 0.57 0.6 0.63 V A LOAD Temperature Slope −40°C ≤ T ≤ +85°C, R = 10 kΩ 2 mV/°C A LOAD Current Source/Sink T = 25°C 10/0.1 mA A POWER-DOWN INTERFACE ENBL (Pin 16) Logic Level to Enable Device 1.7 V ENBL Current When Enabled ENBL = 5 V <1 μA ENBL Current When Disabled ENBL = 0 V; sourcing 15 μA POWER INTERFACE VPSI (Pin 3 and Pin 4), VPSO (Pin 9) Supply Voltage 4.5 5 5.5 V Quiescent Current ENBL = 5 V 50 68 82 mA vs. Temperature −40°C ≤ T ≤ +85°C 150 μA/°C A Supply Current when Disabled ENBL = 0 V, total currents for VPSI and VPSO 260 μA vs. Temperature −40°C ≤ T ≤ +85°C 350 μA A 1 Control er mode. 2 Gain = 1. For other gains, see the Measurement Mode section. Rev. D | Page 5 of 24 Document Outline Features Applications Functional Block Diagram General Description Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Using the AD8318 Basic Connections Enable Interface Input Signal Coupling Output Interface Setpoint Interface Temperature Compensation of Output Voltage Temperature Sensor Measurement Mode Device Calibration and Error Calculation Selecting Calibration Points to Improve Accuracy over a Reduced Range Variation in Temperature Drift from Device to Device Temperature Drift at Different Temperatures Setting the Output Slope in Measurement Mode Response Time Capability Output Filtering Controller Mode Characterization Setup and Methods Evaluation Board Outline Dimensions Ordering Guide
