AD5348 Analog Devices, AD5348 Datasheet
AD5348
Specifications of AD5348
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AD5348 Summary of contents
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... DACs, operating from a 2 5.5 V supply. These devices incorporate an on-chip output buffer that can drive the output to both supply rails, and also allow a choice of buffered or unbuffered reference input. The AD5346/AD5347/AD5348 have a parallel interface × V REF selects the device and data is loaded into the input registers on the rising edge of WR ...
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... Specifications..................................................................................... 3 AC Characteristics............................................................................ 4 Timing Characteristics..................................................................... 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 AD5346 Pin Configurations and Function Descriptions ........... 7 AD5347 Pin Configurations and Function Descriptions ........... 8 AD5348 Pin Configurations and Function Descriptions ........... 9 Terminology .................................................................................... 10 Typical Performance Characteristics ........................................... 12 Functional Description .................................................................. 16 Digital-to-Analog Section ......................................................... 16 Resistor String ............................................................................. 16 DAC Reference Input................................................................. 16 Output Amplifier ...
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... Coming out of power-down mode µs Coming out of power-down mode; V ±1 µ Rev Page AD5346/AD5347/AD5348 MIN MAX = 5 V; upper deadband exists only ±10 kΩ to GND, 2 kΩ 200 pF to GND DAC DAC = ...
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... Temperature range: B Version: –40°C to +105°C; typical specifications are at 25°C. 2 See Terminology section. 3 Linearity is tested using a reduced code range: AD5346 (Code 8 to 255); AD5347 (Code 28 to 1023); AD5348 (Code 115 to 4095 specifications tested with outputs unloaded. 5 This corresponds to x codes deadband voltage/LSB size. ...
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... Time from min Time from min ) and timed from a voltage level A0– DATA Rev Page AD5346/AD5347/AD5348 = )/2 ...
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... AD5346/AD5347/AD5348 ABSOLUTE MAXIMUM RATINGS Table 25°C, unless otherwise noted A Parameter V to GND DD Digital Input Voltage to GND Digital Output Voltage to GND Reference Input Voltage to GND V to GND OUT Operating Temperature Range Industrial (B Version) Storage Temperature Range Junction Temperature 38-Lead TSSOP Package Power Dissipation θ ...
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... Gain Control Pin. Controls whether the output range from the DAC Asynchronous Active Low Control Input. Clears all input registers and DAC registers to zeros. Power-Down Pin. This active low control pin puts all DACs into power-down mode. Rev Page AD5346/AD5347/AD5348 ...
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... AD5346/AD5347/AD5348 AD5347 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS REF REF V CD REF REF 10-BIT OUT AD5347 OUT TOP VIEW OUT (Not to Scale OUT 10 29 AGND ...
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... AD5348 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS REF REF V CD REF REF 12-BIT OUT AD5348 OUT TOP VIEW OUT (Not to Scale OUT 10 29 AGND 11 28 ...
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... AD5346/AD5347/AD5348 TERMINOLOGY Relative Accuracy For the DAC, relative accuracy or integral nonlinearity (INL measure of the maximum deviation, in LSBs, from a straight line passing through the actual endpoints of the DAC transfer function. Typical INL versus code plots can be seen in Figure 14, Figure 15, and Figure 16. ...
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... This is the difference between an ideal sine wave and its attenuated version using the DAC. The sine wave is used as the reference for the DAC, and the THD is a measure of the harmonics present on the DAC output measured in dB. Rev Page AD5346/AD5347/AD5348 ...
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... 100 150 200 CODE Figure 17. AD5346 Typical DNL Plot T = 25° 200 400 600 800 CODE Figure 18. AD5347 Typical DNL Plot T = 25° 1000 2000 3000 CODE Figure 19. AD5348 Typical DNL Plot 250 1000 4000 ...
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... REF 100 0 Figure 24. V 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 100 ZERO SCALE Rev Page AD5346/AD5347/AD5348 = 25° GAIN ERROR OFFSET ERROR (V) DD Figure 23. Offset Error and Gain Error vs SOURCE 3V SOURCE 3V SINK 5V SINK SINK/SOURCE CURRENT (mA) ...
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... AD5346/AD5347/AD5348 1 REF GAIN = 1 UNBUFFERED 1 –40° 1.0 0 +105°C A 0.6 0.4 0.2 0 2.5 3.0 3.5 4.0 SUPPLY VOLTAGE Figure 26. Supply Current vs. Supply Voltage 1.0 0 25°C A 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 2.0 2.5 3.0 3.5 4.0 V (V) DD Figure 27. Power-Down Current vs. Supply Voltage 2.5 ° 2.0 1 VLOGIC (V) Figure 28. Supply Current vs. Logic Input Voltage = +25° ...
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... I (mA) DD Figure 32. I Histogram with and 2.50 2.49 2.48 2.47 1µs/DIV Figure 33. AD5348 Major Code Transition Glitch Energy 10 0 –10 –20 –30 –40 –50 –60 10 100 1k 10k 100k FREQUENCY (Hz) Figure 34. Multiplying Bandwidth (Small Signal Frequency Response) 0.02 0.01 5V –0.01 –0.02 1 ...
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... The AD5346/ REF. DAC REFERENCE INPUT The DACs operate with an external reference. The AD5346/ AD5347/AD5348 have a reference input for each pair of DACs. The reference inputs may be configured as buffered or unbuffered. This option is controlled by the BUF pin. In buffered mode (BUF = 1), the current drawn from an external reference voltage is virtually zero because the imped- ance is at least 10 MΩ ...
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... LDAC is brought low, the DAC registers are filled with the contents of the input registers. In the case of the AD5346/ AD5347/AD5348, the part updates the DAC register only if the input register has been changed since the last time the DAC register was updated. This removes unnecessary crosstalk. ...
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... Don’t Care The AD5347 and AD5348 data bus must be at least 10 and 12 bits wide, respectively, and are best suited to a 16-bit data bus system. Examples of data formats for putting GAIN and BUF 16-bit data bus are shown in Figure 40. Note that any unused bits above the actual DAC data may be used for GAIN and BUF ...
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... APPLICATIONS INFORMATION TYPICAL APPLICATION CIRCUITS The AD5346/AD5347/AD5348 can be used with a wide range of reference voltages, especially if the reference inputs are configured as unbuffered, in which case the devices offer full, one-quadrant multiplying capability over a reference range of 0. More typically, these devices may be used with a DD fixed, precision reference voltage ...
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... AD5346/AD5347/AD5348 AS DIGITALLY PROGRAMMABLE WINDOW DETECTORS A digitally programmable upper/lower limit detector using two of the DACs in the AD5346/AD5347/AD5348 is shown in Figure 45. Any pair of DACs in the device may be used, but for simplicity the description refers to DACs A and B. The upper and lower limits for the test are loaded to DACs A and B which, in turn, set the limits on the CMP04 ...
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... The printed circuit board on which the AD5346/AD5347/ AD5348 is mounted should be designed so that the analog and digital sections are separated and are confined to certain areas of the board. This facilitates the use of ground planes that can be separated easily ...
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... AD5346/AD5347/AD5348 Table 9. Overview of AD53xx Parallel Devices Part No. Resolution DNL SINGLES AD5330 8 ±0.25 AD5331 10 ±0.5 AD5340 12 ±1.0 AD5341 12 ±1.0 DUALS AD5332 8 ±0.25 AD5333 10 ±0.5 AD5342 12 ±1.0 AD5343 12 ±1.0 QUADS AD5334 8 ±0.25 AD5335 10 ±0.5 AD5336 10 ±0.5 AD5344 12 ±1.0 OCTALS AD5346 8 ±0.25 AD5347 10 ±0.5 ...
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... BSC TOP 5.75 VIEW BSC SQ 0.50 0.40 0.30 0.80 MAX 0.65 TYP 0.05 MAX 0.02 NOM 0.30 0.20 REF COPLANARITY 0.23 0.08 0.18 COMPLIANT TO JEDEC STANDARDS MO-220-VJJD-2 Figure 49. 40-Lead Lead Frame Chip Scale Package [LFCSP] (CP-40) Dimensions shown in millimeters Rev Page AD5346/AD5347/AD5348 6.40 BSC 8° 0° 0.70 0.60 0.45 0.60 MAX PIN 1 INDICATOR 4.25 BOTTOM 4.10 SQ VIEW 3. ...
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... AD5347BRU-REEL7 –40°C to +105°C AD5347BCP –40°C to +105°C AD5347BCP-REEL –40°C to +105°C AD5347BCP-REEL7 –40°C to +105°C Table 13. AD5348 Ordering Guide Model Temperature Range AD5348BRU –40°C to +105°C AD5348BRU-REEL –40°C to +105°C AD5348BRU-REEL7 –40°C to +105°C AD5348BCP – ...