Electronic Components Datasheet Search |
|
DAC8234 Datasheet(PDF) 8 Page - Texas Instruments |
|
|
DAC8234 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 41 page DAC8234 SBAS464A – AUGUST 2009 – REVISED SEPTEMBER 2009 ........................................................................................................................................... www.ti.com PIN DESCRIPTIONS (continued) PIN NO. PIN NAME QFN-40 TQFP-48 I/O DESCRIPTION RFB2-0 (1) 14 16 O DAC-0 RFB2 feedback RFB1-0 (1) 15 17 O DAC-0 RFB1 feedback SGND-0 16 18 I DAC-0 signal ground. Connected to REFGND-A. SGND-1 17 20 I DAC-1 signal ground. Connected to REFGND-A. RFB1-1 (1) 18 21 O DAC-1 RFB1 feedback RFB2-1 (1) 19 22 O DAC-1 RFB2 feedback VOUT-1 20 23 O DAC-1 output AVDD 21, 30 26, 35 I Positive analog power supply AGND 22 27 I Analog ground AVSS 23, 28 28, 33 I Negative analog power supply REFGND-A 24 29 I Reference REF-A ground. Connect to AGND. REF-A 25 30 I Group A (DAC-0, DAC-1) reference input REF-B 26 31 I Group B (DAC-2, DAC-3) reference input REFGND-B 27 32 I Reference REF-B ground. Connect to AGND. Analog monitor output. This pin is either in Hi-Z status, or connected to one of the four DAC outputs VMON 29 34 O or AIN, depending on the content of the Monitor Register. VOUT-3 31 38 O DAC-3 output RFB2-3 (1) 32 39 O DAC-3 RFB2 feedback RFB1-3 (1) 33 40 O DAC-3 RFB1 feedback SGND-3 34 41 I DAC-3 signal ground. Connected to REFGND-B. SGND-2 35 43 I DAC-2 signal ground. Connected to REFGND-B. RFB1-2 (1) 36 44 O DAC-2 RFB1 feedback RFB2-2 (1) 37 45 O DAC-2 RFB2 feedback VOUT-2 38 46 O DAC-2 output AIN 39 47 I Auxiliary analog input. Connected to the analog monitor mux. Output mode selection of group B (DAC-2 and DAC-3). When UNI/BIP-A is tied to IOVDD, group B is in unipolar output mode; when tied to DGND, group B is in bipolar output mode. UNI/BIP-B 40 48 I The input data written to the DAC are straight binary for unipolar output mode, and twos complement for bipolar output mode. 1, 12, 19, NC — 24, 25, 36, Not connected 37, 42 (1) To set the DAC-x gain = 2, connect RFB1-x and RFB2-x to VOUT-x, and set the corresponding GAIN bit in the Command Register to '0'. To set the DAC-x gain = 4, connect RFB1-x to VOUT-x, keep RFB2-x open, and set the corresponding GAIN bit in the Command Register to '1'. After power-on reset or user reset, the GAIN bits are set to '1' by default; for gain = 2, the gain bits must be cleared to '0'. 8 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): DAC8234 |
Similar Part No. - DAC8234 |
|
Similar Description - DAC8234 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |