max5121beee Maxim Integrated Products, Inc., max5121beee Datasheet
max5121beee
Related parts for max5121beee
max5121beee Summary of contents
Page 1
... Pin-Compatible 14-Bit Upgrades Available (MAX5170/MAX5172) PART MAX5120AEEE 15 REFADJ MAX5120BEEE 14 REF MAX5121AEEE 13 AGND MAX5121BEEE 12 PD UPO 11 10 DOUT 9 DGND SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. Features 100pF Ordering Information PIN- INL TEMP. RANGE ...
Page 2
Serial Voltage-Output DACs with Internal Reference ABSOLUTE MAXIMUM RATINGS V to AGND, DGND ...............................................-0.3V to +6V DD AGND to DGND.....................................................-0.3V to +0.3V Digital Inputs to DGND.............................................-0.3V to +6V Digital Outputs (DOUT, UPO) to DGND .....-0. OUT ...
Page 3
Serial Voltage-Output DACs ELECTRICAL CHARACTERISTICS—MAX5120 (+5V) (continued +5V ±10 AGND = DGND = 0V, 33nF capacitor at REFADJ, internal reference unless otherwise noted. Typical values are at T MAX PARAMETER ...
Page 4
Serial Voltage-Output DACs with Internal Reference ELECTRICAL CHARACTERISTICS—MAX5121 (+3V) (continued +3V ±10 AGND = DGND = 0V, 33nF capacitor at REFADJ, internal reference unless otherwise noted. Typical values are at ...
Page 5
Serial Voltage-Output DACs TIMING CHARACTERISTICS—MAX5121 (+3V +3V ±10 AGND = DGND = 0V, 33nF capacitor at REFADJ, internal reference unless otherwise noted. Typical values are at T MAX PARAMETER SCLK ...
Page 6
Serial Voltage-Output DACs with Internal Reference (V = +5V (MAX5120 +3V (MAX5121 MAX5120 SUPPLY CURRENT vs. TEMPERATURE 500 450 400 (CODE = AAA HEX) 350 (CODE = 000 HEX) 300 250 200 -60 ...
Page 7
Serial Voltage-Output DACs (V = +5V (MAX5120 +3V (MAX5121 MAX5121 INTEGRAL NONLINEARITY vs. DIGITAL INPUT CODE 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 0 1000 2000 3000 4000 5000 DIGITAL INPUT CODE MAX5121 ...
Page 8
Serial Voltage-Output DACs with Internal Reference (V = +5V (MAX5120 +3V (MAX5121 MAX5121 DYNAMIC RESPONSE FALL TIME MAX5120/21-22 CS 2V/div OUT 500mV/div 2 s/div PIN NAME 1 OS Offset Adjust (Analog Input) 2 ...
Page 9
Serial Voltage-Output DACs CS DIN SCLK PDL CONTROL PD RSTVAL CLR BANDGAP REFERENCE ( ) FOR MAX5121 ONLY Figure 1. Simplified Functional Diagram _______________Detailed Description The MAX5120/MAX5121 12-bit, voltage-output DACs are easily configured with a 3-wire serial interface. ...
Page 10
Serial Voltage-Output DACs with Internal Reference (MAX5120) and Figure 3b (MAX5121) to achieve these adjustments. Connect a 33nF capacitor from REFADJ to AGND to establish low-noise operation of the DAC. Larger capacitor values may be used, but will ...
Page 11
Serial Voltage-Output DACs Table 1. Serial-Interface Programming Commands 16-BIT SERIAL WORD D11 ............... XXXXXXXXXXXX 12-Bit DAC Data 12-Bit DAC Data XXXXXXXXXXXX 1 ...
Page 12
Serial Voltage-Output DACs with Internal Reference The 16-bit input word may be sent in two 1-byte pack- ets (SPI-, MICROWIRE- and PIC16/PIC17-compatible), with CS low during this period. The control bits C2, C1, and C0 (Table 1) determine: ...
Page 13
Serial Voltage-Output DACs Table 3. Detailed SSPCON Register Contents CONTROL BIT WCOL BIT7 SSPOV BIT6 SSPEN BIT5 CKP BIT4 SSPM3 BIT3 SSPM2 BIT2 SSPM1 BIT1 SSPM0 BIT0 X = Don’t care Table 4. Detailed SSPSTAT Register Contents CONTROL ...
Page 14
Serial Voltage-Output DACs with Internal Reference __________Applications Information Integral Nonlinearity (INL) Integral nonlinearity (Figure 8a) is the deviation of the values on an actual transfer function from a straight line. This straight line can be either a best-straight-line ...
Page 15
Serial Voltage-Output DACs The settling time is the amount of time required from the start of a transition until the DAC output settles to its new output value within the converter’s specified accuracy. Digital feedthrough is noise generated ...
Page 16
Serial Voltage-Output DACs with Internal Reference Table 5. Unipolar Code Table (Gain = 1.6384V/V) DAC CONTENTS SUB-BIT MSB LSB S0 1111 1111 1111 0 1000 0000 0001 0 1000 0000 0000 0 0111 1111 1111 0 0000 0000 ...
Page 17
Serial Voltage-Output DACs Using an External Reference with AC Components The MAX5120/MAX5121 have multiplying capabilities within the reference input voltage range specifications. Figure 14 shows a technique for applying a sinusoidal input to REF, where the AC signal ...
Page 18
Serial Voltage-Output DACs with Internal Reference ___________________Chip Information TRANSISTOR COUNT: 3308 SUBSTRATE CONNECTED TO AGND. 18 ______________________________________________________________________________________ Package Information ...
Page 19
Serial Voltage-Output DACs ______________________________________________________________________________________ with Internal Reference NOTES 19 ...
Page 20
Serial Voltage-Output DACs with Internal Reference Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry ...