Datasheet AD7352 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | Differential Input, Dual, Simultaneous Sampling, 3 MSPS, 12-Bit, SAR ADC |
| 页数 / 页 | 21 / 5 — AD7352. Data Sheet. Parameter. Min. Typ. Max. Unit. Test … |
| 修订版 | B |
| 文件格式/大小 | PDF / 521 Kb |
| 文件语言 | 英语 |
AD7352. Data Sheet. Parameter. Min. Typ. Max. Unit. Test Conditions/Comments
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AD7352 Data Sheet Parameter Min Typ Max Unit Test Conditions/Comments
LOGIC INPUTS Input High Voltage (VINH) 0.6 × VDRIVE V Input Low Voltage (VINL) 0.3 × VDRIVE V Input Current (IIN) ±1 μA VIN = 0 V or VDRIVE Input Capacitance (CIN) 3 pF LOGIC OUTPUTS Output High Voltage (VOH) VDRIVE − 0.2 V Output Low Voltage (VOL) 0.2 V Floating-State Leakage Current ±1 μA Floating-State Output Capacitance 5.5 pF Output Coding Straight binary CONVERSION RATE Conversion Time t2 + 13 × tSCLK ns Track-and-Hold Acquisition Time2 30 ns Full-scale step input, settling to 0.5 LSBs Throughput Rate 3 MSPS POWER REQUIREMENTS3 VDD 2.25 2.75 V Nominal VDD = 2.5 V VDRIVE 2.25 3.6 V I 4 TOTAL Digital inputs = 0 V or VDRIVE Normal Mode (Operational) 10 15 mA Normal Mode (Static) 6 7.5 mA SCLK on or off Partial Power-Down Mode 3.5 4.5 mA SCLK on or off Full Power-Down Mode 5 40 μA SCLK on or off, −40°C to +85°C 90 μA SCLK on or off, 85°C to 125°C Power Dissipation Normal Mode (Operational) 26 45 mW Normal Mode (Static) 16 21 mW SCLK on or off Partial Power-Down Mode 9.5 11.5 mW SCLK on or off Full Power-Down Mode 16 110 μW SCLK on or off, −40°C to +85°C 250 μW SCLK on or off, 85°C to 125°C 1 Temperature ranges are as follows: Y grade: −40°C to +125°C; B grade: −40°C to +85°C. 2 See the Terminology section. 3 Current and power typical specifications are based on results with VDD = 2.5 V and VDRIVE = 3.0 V. 4 ITOTAL is the total current flowing in VDD and VDRIVE. Rev. B | Page 4 of 20 Document Outline Features Applications 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 Analog Input Structure Analog Inputs Driving Differential Inputs Differential Amplifier Op Amp Pair Voltage Reference ADC Transfer Function Modes of Operation Normal Mode Partial Power-Down Mode Full Power-Down Mode Power-Up Times Power vs. Throughput Rate Serial Interface Application Hints Grounding and Layout Evaluating the AD7352 Performance Outline Dimensions Ordering Guide
AD7352 Data Sheet Parameter Min Typ Max Unit Test Conditions/Comments
LOGIC INPUTS Input High Voltage (VINH) 0.6 × VDRIVE V Input Low Voltage (VINL) 0.3 × VDRIVE V Input Current (IIN) ±1 μA VIN = 0 V or VDRIVE Input Capacitance (CIN) 3 pF LOGIC OUTPUTS Output High Voltage (VOH) VDRIVE − 0.2 V Output Low Voltage (VOL) 0.2 V Floating-State Leakage Current ±1 μA Floating-State Output Capacitance 5.5 pF Output Coding Straight binary CONVERSION RATE Conversion Time t2 + 13 × tSCLK ns Track-and-Hold Acquisition Time2 30 ns Full-scale step input, settling to 0.5 LSBs Throughput Rate 3 MSPS POWER REQUIREMENTS3 VDD 2.25 2.75 V Nominal VDD = 2.5 V VDRIVE 2.25 3.6 V I 4 TOTAL Digital inputs = 0 V or VDRIVE Normal Mode (Operational) 10 15 mA Normal Mode (Static) 6 7.5 mA SCLK on or off Partial Power-Down Mode 3.5 4.5 mA SCLK on or off Full Power-Down Mode 5 40 μA SCLK on or off, −40°C to +85°C 90 μA SCLK on or off, 85°C to 125°C Power Dissipation Normal Mode (Operational) 26 45 mW Normal Mode (Static) 16 21 mW SCLK on or off Partial Power-Down Mode 9.5 11.5 mW SCLK on or off Full Power-Down Mode 16 110 μW SCLK on or off, −40°C to +85°C 250 μW SCLK on or off, 85°C to 125°C 1 Temperature ranges are as follows: Y grade: −40°C to +125°C; B grade: −40°C to +85°C. 2 See the Terminology section. 3 Current and power typical specifications are based on results with VDD = 2.5 V and VDRIVE = 3.0 V. 4 ITOTAL is the total current flowing in VDD and VDRIVE. Rev. B | Page 4 of 20 Document Outline Features Applications 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 Analog Input Structure Analog Inputs Driving Differential Inputs Differential Amplifier Op Amp Pair Voltage Reference ADC Transfer Function Modes of Operation Normal Mode Partial Power-Down Mode Full Power-Down Mode Power-Up Times Power vs. Throughput Rate Serial Interface Application Hints Grounding and Layout Evaluating the AD7352 Performance Outline Dimensions Ordering Guide