Datasheet ADT7411 (Analog Devices) - 10

ADT7411 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 2.00 1.0 ADC OFF 0.8 1.95 0.6 0.4 1.90 LSB) 0.2 R ( (mA) 0 I CC RRO 1.85 E –0.2 INL –0.4 1.80 –0.6 –0.8 1.75 –1.0 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
006
0 200 400 600 800 1000
009
VCC (V) ADC CODE
02882- 02882- Figure 7. Supply Current vs. Supply Voltage at 25°C Figure 10. ADC INL with Ref = VDD (3.3 V)
0 1.5 ±100mV RIPPLE ON VCC V EXTERNAL TEMPERATURE @ 5V REF = 2.25V –10 VDD = 3.3V INTERNAL TEMPERATURE @ 3.3V TEMPERATURE = 25°C 1.0 °C) –20 R ( dB) 0.5 RRO E SRR ( –30 URE AC P 0 –40 PERAT TEM –0.5 –50 EXTERNAL TEMPERATURE @ 3.3V INTERNAL TEMPERATURE @ 5V –60 –1.0 1 10 100
007
–30 0 40 85 120
010
FREQUENCY (kHz) TEMPERATURE (°C)
02882- 02882- Figure 8. PSRR vs. Supply Ripple Frequency Figure 11. Temperature Error at 3.3 V and 5 V
7 3 VDD = 3.3V 6 2 OFFSET ERROR 5 1 4 LSB) 0 (µA) R ( I CC 3 ERRO –1 GAIN ERROR 2 –2 1 –3 0 –4 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
008
–40 –20 0 20 40 60 80 100 120
011
VCC (V) TEMPERATURE (°C)
02882- 02882- Figure 9. Power-Down Current vs. Supply Voltage at 25°C Figure 12. ADC Offset Error and Gain Error vs. Temperature Rev. C | Page 10 of 36 Document Outline Features Applications Pin Configuration General Description Revision History Specifications Functional Block Diagram Absolute Maximum Ratings ESD Caution Pin Configuration and Functional Descriptions Terminology Typical Performance Characteristics Theory of Operation Power-Up Calibration Conversion Speed Functional Description Analog Inputs Single-Ended Inputs Converter Operation ADC Transfer Function Analog Input ESD Protection AIN Interrupts Functional Description—Measurement Temperature Sensor VDD Monitoring On-Chip Reference Round Robin Measurement Single-Channel Measurement Temperature Measurement Method Internal Temperature Measurement External Temperature Measurement Layout Considerations Temperature Value Format Interrupts ADT7411 Registers Interrupt Status 1 Register (Read-Only) [Address = 00h] Interrupt Status 2 Register (Read-Only) [Address = 01h] Internal Temperature Value/VDD Value Register LSBs (Read-Only) [Address = 03h] External Temperature Value and AIN1 to AIN4 Register LSBs (Read-Only) [Address = 04h] AIN5 to AIN8 Registers LSBs (Read-Only) [Address = 05h] VDD Value Register MSBs (Read-Only) [Address = 06h] Internal Temperature Value Register MSBs (Read-Only) [Address = 07h] External Temperature Value or AIN1 Register MSBs (Read-Only) [Address = 08h] AIN2 Register MSBs (Read) [Address = 09h] AIN3 Register MSBs (Read) [Address = 0Ah] AIN4 Register MSBs (Read) [Address = 0Bh] AIN5 Register MSBs (Read) [Address = 0Ch] AIN6 Register MSBs (Read) [Address = 0Dh] AIN7 Register MSBs (Read) [Address = 0Eh] AIN8 Register MSBs (Read) [Address = 0Fh] Control Configuration 1 Register (Read/Write) [Address = 18h] Control Configuration 2 Register (Read/Write) [Address = 19h] Control Configuration 3 Register (Read/Write) [Address = 1Ah] Interrupt Mask 1 Register (Read/Write) [Address = 1Dh] Interrupt Mask 2 Register (Read/Write) [Address = 1Eh] Internal Temperature Offset Register (Read/Write) [Address = 1Fh] External Temperature Offset Register (Read/Write) [Address = 20h] VDD VHIGH Limit Register (Read/Write) [Address = 23h] VDD VLOW Limit Register (Read/Write) [Address = 24h] Internal THIGH Limit Register (Read/Write) [Address = 25h] Internal TLOW Limit Register (Read/Write) [Address = 26h] External THIGH/AIN1 VHIGH Limit Register (Read/Write) [Address = 27h] External TLOW/AIN1 VLOW Limit Register (Read/Write) [Address = 28h] AIN2 VHIGH Limit Register (Read/Write) [Address = 2Bh] AIN2 VLOW Limit Register (Read/Write) [Address = 2Ch] AIN3 VHIGH Limit Register (Read/Write) [Address = 2Dh] AIN3 VLOW Limit Register (Read/Write) [Address = 2Eh] AIN4 VHIGH Limit Register (Read/Write) [Address = 2Fh] AIN4 VLOW Limit Register (Read/Write) [Address = 30h] AIN5 VHIGH Limit Register (Read/Write) [Address = 31h] AIN5 VLOW Limit Register (Read/Write) [Address = 32h] AIN6 VHIGH Limit Register (Read/Write) [Address = 33h] AIN6 VLOW Limit Register (Read/Write) [Address = 34h] AIN7 VHIGH Limit Register (Read/Write) [Address = 35h] AIN7 VLOW Limit Register (Read/Write) [Address = 36h] AIN8 VHIGH Limit Register (Read/Write) [Address = 37h] AIN8 VLOW Limit Register (Read/Write) [Address = 38h] Device ID Register (Read-Only) [Address = 4Dh] Manufacturer’s ID Register (Read-Only) [Address = 4Eh] Silicon Revision Register (Read-Only) [Address = 4Fh] SPI Lock Status Register (Read-Only) [Address = 7Fh] Serial Interface Serial Interface Selection I2C Serial Interface Writing to the ADT7411 Writing to the Address Pointer Register for a Subsequent Read Writing Data to a Register Reading Data from the ADT7411 SPI Serial Interface Write Operation Read Operation SMBus/SPI INT/INTB SMBus Alert Response Outline Dimensions Ordering Guide