 |
Motore di ricerca datesheet componenti elettronici |
|
|
Motore di ricerca datesheet componenti elettronici |
|
DAC11001A Scheda tecnica(PDF) 16 Page - Texas Instruments |
|
||||||||||||||||||||||||||||||
DAC11001A Scheda tecnica(HTML) 16 Page - Texas Instruments |
|
|
16 / 42 page  DAC110 01 + ± VOUT ROFS RCM RFB DAC-OUT C1 C2 + ± + ± + ± Voltage Reference VREFP VREFN REFPF REFPS REFNF REFNS 16 DAC11001A, DAC91001, DAC81001 SLASEL0 – OCTOBER 2019 www.ti.com Product Folder Links: DAC11001A DAC91001 DAC81001 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Feature Description (continued) 8.3.2 External Reference The DACx1001 require external references (REFPF and REFNF) to operate. See the Recommended Operating Conditions for VREFPF and VREFNF voltage ranges. The DACx1001 also contain dedicated sense pins, REFPS for REFPF and REFNS for REFNF. The reference pins are unbuffered; therefore, use a reference driver circuit for these pins. Set the VREFVAL bits (address 02h) as per a reference span equal to (VREFPF – VREFNF). For example, the VREFVAL bits must be set to 0100 for VREFPF = 5 V and VREFNF = –5 V. Figure 3 shows an example reference drive circuit for DACx1001. Table 1 shows the op-amp options for the reference driver circuit. Figure 3. Reference Drive Circuit Table 1. Reference Op Amp Options SELECTION PARAMETERS OP AMPS Low voltage and current noise OPA211, OPA827, OPA828 Low offset and drift OPA189 8.3.3 Output Buffers The DACx1001 outputs are unbuffered. Use an external op amp to buffer the DAC output. The DAC output voltage ranges from VREFPF to VREFNF. Two gain-setting resistors are integrated in the DACx1001. These resistors are used to scale the DAC output, minimize the bias current mismatch of the external op amp, and generate a negative reference for the REFNF pin. See the Embedded Resistor Configurations section for more information. Table 2 shows the op amp options for the output drive circuit. Table 2. Output Op Amp Options SELECTION PARAMETERS OP AMPS Low bias current OPA827, OPA828 Low noise OPA211, OPA828 Low offset and drift OPA189 Fast settling and low THD OPA827, OPA828, OPA1612, THS4011 |
Codice articolo simile - DAC11001A_V01 |
|
Descrizione simile - DAC11001A_V01 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEETIT.COM |
| Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore 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 |
Italian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
