Datasheet AD7327 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | 500 kSPS, 8-Channel, Software Selectable True bipolar Input, 12-Bit Plus Sign A/D Converter |
| Pages / Page | 37 / 9 — AD7327. ABSOLUTE MAXIMUM RATINGS. Table 4. Parameter. Rating. ESD CAUTION |
| Revision | B |
| File Format / Size | PDF / 776 Kb |
| Document Language | English |
AD7327. ABSOLUTE MAXIMUM RATINGS. Table 4. Parameter. Rating. ESD CAUTION
Model Line for this Datasheet
Text Version of Document
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AD7327 ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted. Stresses above those listed under Absolute Maximum Ratings
Table 4.
may cause permanent damage to the device. This is a stress
Parameter Rating
rating only; functional operation of the device at these or any other conditions above those indicated in the operational VDD to AGND, DGND −0.3 V to +16.5 V section of this specification is not implied. Exposure to absolute VSS to AGND, DGND +0.3 V to −16.5 V maximum rating conditions for extended periods may affect VDD to VCC VCC − 0.3 V to 16.5 V device reliability. VCC to AGND, DGND −0.3 V to +7 V VDRIVE to AGND, DGND −0.3 V to +7 V AGND to DGND −0.3 V to +0.3 V
ESD CAUTION
Analog Input Voltage to AGND1 VSS − 0.3 V to VDD + 0.3 V Digital Input Voltage to DGND −0.3 V to +7 V Digital Output Voltage to GND −0.3 V to VDRIVE + 0.3 V REFIN to AGND −0.3 V to VCC + 0.3 V Input Current to Any Pin ±10 mA Except Supplies2 Operating Temperature Range −40°C to +85°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C TSSOP Package θJA Thermal Impedance 143°C/W θJC Thermal Impedance 45°C/W Pb-Free Temperature, Soldering Reflow 260(0)°C ESD 2.5 kV 1 If the analog inputs are driven from alternative VDD and VSS supply circuitry, Schottky diodes should be placed in series with the AD7327 VDD and VSS supplies. See Power Supply Configuration section. 2 Transient currents of up to 100 mA do not cause SCR latch-up. Rev. B | Page 8 of 36 Document Outline Features Functional Block Diagram General Description Product Highlights Table of Contents Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Terminology Theory of Operation Circuit Information Converter Operation Output Coding Transfer Functions Analog Input Structure Track-and-Hold Section Typical Connection Diagram Analog Input Single-Ended Inputs True Differential Mode Pseudo Differential Inputs Driver Amplifier Choice Registers Addressing Registers Control Register Sequence Register Range Registers Sequencer Operation Reference VDRIVE Temperature Indicator Modes of Operation Normal Mode Full Shutdown Mode Autoshutdown Mode Autostandby Mode Power vs. Throughput Rate Serial Interface Microprocessor Interfacing AD7327 to ADSP-21xx AD7327 to ADSP-BF53x Application Hints Layout and Grounding Power Supply Configuration Outline Dimensions Ordering Guide
AD7327 ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted. Stresses above those listed under Absolute Maximum Ratings
Table 4.
may cause permanent damage to the device. This is a stress
Parameter Rating
rating only; functional operation of the device at these or any other conditions above those indicated in the operational VDD to AGND, DGND −0.3 V to +16.5 V section of this specification is not implied. Exposure to absolute VSS to AGND, DGND +0.3 V to −16.5 V maximum rating conditions for extended periods may affect VDD to VCC VCC − 0.3 V to 16.5 V device reliability. VCC to AGND, DGND −0.3 V to +7 V VDRIVE to AGND, DGND −0.3 V to +7 V AGND to DGND −0.3 V to +0.3 V
ESD CAUTION
Analog Input Voltage to AGND1 VSS − 0.3 V to VDD + 0.3 V Digital Input Voltage to DGND −0.3 V to +7 V Digital Output Voltage to GND −0.3 V to VDRIVE + 0.3 V REFIN to AGND −0.3 V to VCC + 0.3 V Input Current to Any Pin ±10 mA Except Supplies2 Operating Temperature Range −40°C to +85°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C TSSOP Package θJA Thermal Impedance 143°C/W θJC Thermal Impedance 45°C/W Pb-Free Temperature, Soldering Reflow 260(0)°C ESD 2.5 kV 1 If the analog inputs are driven from alternative VDD and VSS supply circuitry, Schottky diodes should be placed in series with the AD7327 VDD and VSS supplies. See Power Supply Configuration section. 2 Transient currents of up to 100 mA do not cause SCR latch-up. Rev. B | Page 8 of 36 Document Outline Features Functional Block Diagram General Description Product Highlights Table of Contents Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Terminology Theory of Operation Circuit Information Converter Operation Output Coding Transfer Functions Analog Input Structure Track-and-Hold Section Typical Connection Diagram Analog Input Single-Ended Inputs True Differential Mode Pseudo Differential Inputs Driver Amplifier Choice Registers Addressing Registers Control Register Sequence Register Range Registers Sequencer Operation Reference VDRIVE Temperature Indicator Modes of Operation Normal Mode Full Shutdown Mode Autoshutdown Mode Autostandby Mode Power vs. Throughput Rate Serial Interface Microprocessor Interfacing AD7327 to ADSP-21xx AD7327 to ADSP-BF53x Application Hints Layout and Grounding Power Supply Configuration Outline Dimensions Ordering Guide
