max5820 Maxim Integrated Products, Inc., max5820 Datasheet
max5820
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max5820 Summary of contents
Page 1
... The device operates from a single 2.7V to 5.5V supply (115µ 3.6V). A power-down mode decreases DD current consumption to less than 1µA. The MAX5820 fea- tures three software-selectable power-down output impedances: 100kΩ, 1kΩ, and high impedance. Other features include internal precision rail-to-rail output buffers and a power-on reset (POR) circuit that powers up the DAC in the 100kΩ ...
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Dual, 8-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC ABSOLUTE MAXIMUM RATINGS V , SCL, SDA to GND ............................................-0.3V to +6V DD OUT_, REF, ADD to GND..............................-0. Maximum Current into Any Pin............................................50mA Continuous Power Dissipation (T = +70°C) A 8-Pin ...
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Dual, 8-Bit, Low-Power, 2-Wire, Serial ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V, GND = REF +5V +25°C.) (Note PARAMETER SYMBOL Input Hysteresis Input Leakage Current Input Capacitance DIGITAL ...
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Dual, 8-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V, GND = REF +5V +25°C.) (Note PARAMETER SYMBOL STOP Condition Setup Time ...
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Dual, 8-Bit, Low-Power, 2-Wire, Serial (V = +5V 5kΩ +25°C ZERO-CODE ERROR vs. SUPPLY VOLTAGE LOAD 0 2.7 3.4 4.1 4.8 SUPPLY VOLTAGE (V) GAIN ERROR vs. ...
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... CODE = 80 hex TO 7F hex 2µs/div DIGITAL FEEDTHROUGH MAX5820 toc23 SCL 500mV/div OUT_ C = 200pF LOAD f = 12kHz SCL CODE = 00 hex 40µs/div EXITING SHUTDOWN MAX5820 toc18 5V 0 OUT_ 10mV/div C = 200pF LOAD CODE = 80 hex 2µs/div SETTLING TIME (POSITIVE) MAX5820 toc21 5mV/div OUT_ C ...
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... The MAX5820 is SMBus com- patible within the range of V SCL facilitate bidirectional communication between the MAX5820 and the master at rates up to 400kHz. Figure Output Buffer 1 shows the 2-wire interface timing diagram. The MAX5820 is a transmit/receive slave-only device, rely- ing upon a master to generate a clock signal ...
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... Such a change occurs when a command word is required to initiate a read operation. S master is writing to several I want to relinquish control of the bus. The MAX5820 seri- al interface supports continuous write operations with or without an S read operations require S change in direction of data flow. ...
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... The LSB of the address word is the Read/Write (R/W) bit. R/W indicates whether the master is writing to or read- ing from the MAX5820 (R selects the write condi- tion, R selects the read condition). After receiving the proper address, the MAX5820 issues an ACK by pulling SDA low for one clock cycle ...
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... PD0 and PD1 (Table 1). Any combination of the DACs can be controlled with a single write sequence. In read mode (R/W = 1), the MAX5820 writes the con- tents of the DAC register to the bus. The direction of data flow reverses following the address acknowledge by the MAX5820 ...
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Dual, 8-Bit, Low-Power, 2-Wire, Serial Table 3. Command Byte Definitions SERIAL DATA INPUT DAC DATA DAC DATA DAC DATA DAC ...
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... LSB MSB R ACK = 0 DATA BYTES GENERATED BY MASTER DEVICE LSB MSB R ACK X X PD1 = 1 DATA BYTES GENERATED BY MAX5820 LSB ACK P REF 8-BIT MUX AND DAC DAC REGISTER A 8-BIT MUX AND DAC DAC REGISTER B POWER-DOWN CIRCUITRY V GND DD TRANSISTOR COUNT: 11,186 ...
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... Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2005 Maxim Integrated Products Voltage-Output DAC BOTTOM VIEW SIDE VIEW Printed USA is a registered trademark of Maxim Integrated Products, Inc. Package Information MILLIMETERS INCHES MAX MIN DIM MIN MAX - 0.043 - 1. ...