Electronic Components Datasheet Search |
|
MAX5184 Datasheet(PDF) 8 Page - Maxim Integrated Products |
|
MAX5184 Datasheet(HTML) 8 Page - Maxim Integrated Products |
8 / 16 page 10-Bit, 40MHz, Current/Voltage-Output DACs 8 _______________________________________________________________________________________ Detailed Description The MAX5181/MAX5184 are 10-bit digital-to-analog con- verters (DACs) capable of operating with clock speeds up to 40MHz. Each converter consists of separate input and DAC registers, followed by a current source array capable of generating up to 1.5mA full-scale output cur- rent (Figure 1). An integrated +1.2V voltage reference and control amplifier determine the data converters’ full- scale output currents/voltages. Careful reference design ensures close gain matching and excellent drift charac- teristics. The MAX5184’s voltage output operation fea- tures matched 400 Ω on-chip resistors that convert the current-array current into a voltage. Internal Reference and Control Amplifier The MAX5181/MAX5184 provide an integrated 50ppm/°C, +1.2V, low-noise bandgap reference that can be dis- abled and overridden by an external reference voltage. REFO serves either as an external reference input or an integrated reference output. If REN is connected to DGND, the internal reference is selected and REFO provides a +1.2V output. Due to its limited 10µA output drive capability, REFO must be buffered with an exter- nal amplifier if heavier loading is required. The MAX5181/MAX5184 also employ a control amplifier designed to regulate simultaneously the full-scale out- put current (IFS) for both outputs of the devices. The output current is calculated as follows: IFS = 8 · IREF where IREF is the reference output current (IREF = VREFO/RSET) and IFS is the full-scale output current. RSET is the reference resistor that determines the amplifier’s output current on the MAX5181 (Figure 2). This current is mirrored into the current source array, where it is equally distributed between matched current segments and summed to valid output current readings for the DACs. The MAX5184 converts this output current into a differ- ential output voltage (VOUT) with two internal, ground- referenced 400 Ω load resistors. Using the internal +1.2V reference voltage, the MAX5184’s integrated 9.6k* REFR REFO 1.2V REF REN CURRENT- SOURCE ARRAY DAC SWITCHES 400 Ω* OUTP OUTN 400 Ω* MSB DECODE CLK OUTPUT LATCHES OUTPUT LATCHES INPUT LATCHES *INTERNAL 400 Ω AND 9.6kΩ RESISTORS FOR MAX5184 ONLY. INPUT LATCHES AVDD AGND CS DACEN PD DVDD DGND CREF MAX5181 MAX5184 MSB DECODE D9–D0 Figure 1. Functional Diagram |
Similar Part No. - MAX5184 |
|
Similar Description - MAX5184 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |