參數(shù)資料
型號(hào)： DAC8830IBD
廠商： TEXAS INSTRUMENTS INC
元件分類： DAC
英文描述： SERIAL INPUT LOADING, 1 us SETTLING TIME, 16-BIT DAC, PDSO8
封裝： GREEN, PLASTIC, SOIC-8
文件頁數(shù)： 25/29頁
文件大小： 687K
代理商： DAC8830IBD
www.ti.com
PIN CONFIGURATIONS (NOT TO SCALE)
1
2
3
4
8
7
6
5
V
DD
DGND
SDI
SCLK
V
OUT
AGND
V
REF
CS
D
A
C
8
3
0
1
2
3
4
5
6
7
14
13
12
11
10
9
8
RFB
V
OUT
AGNDF
AGNDS
V
REFS
V
REFF
CS
V
DD
INV
DGND
LDAC
SDI
NC
SCLK
D
A
C
8
3
1
DAC8831
Thermal Pad(1)
IN
V
D
G
N
D
L
D
A
C
S
D
I
N
C
V
O
U
T
A
G
N
D
F
A
G
N
D
S
V
R
E
F
S
V
R
E
F
F
2
3
5
6
4
13
12
10
9
11
14
1
V
DD
RFB
SCLK
CS
8
7
NOTE: (1) Exposed thermal pad in the QFN package
must be connected to analog ground.
SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007
D PACKAGE
RGY PACKAGE
SO-8
SO-14
QFN-14
(TOP VIEW)
TERMINAL FUNCTIONS
TERMINAL
DESCRIPTION
NO.
NAME
DAC8830
1
VOUT
Analog output of DAC
2
AGND
Analog ground
3
VREF
Voltage reference input
4
CS
Chip select input (active low). Data are not clocked into SDI unless CS is low
5
SCLK
Serial clock input
6
SDI
Serial data input. Data are latched into input register on the rising edge of SCLK.
7
DGND
Digital ground
8
VDD
Analog power supply, +3 V to +5 V
DAC8831
1
RFB
Feedback resistor. Connect to the output of external operational amplifier in bipolar mode.
2
VOUT
Analog output of DAC
3
AGNDF
Analog ground (Force)
4
AGNDS
Analog ground (Sense)
5
VREF–S
Voltage reference input (Sense). Connect to external voltage reference
6
VREF–F
Voltage reference input (Force). Connect to external voltage reference
7
CS
Chip select input (active low). Data are not clocked into SDI unless CS is low.
8
SCLK
Serial clock input.
9
NC
No internal connection
10
SDI
Serial data input. Data are latched into input register on the rising edge of SCLK.
Load DAC control input. Active low. When LDAC is Low, the DAC latch is simultaneously updated with the content
11
LDAC
of the input register.
12
DGND
Digital ground
13
INV
Junction point of internal scaling resistors. Connect to external operational amplifier inverting input in bipolar mode.
14
VDD
Analog power supply, +3 V to +5 V.
Copyright 2005–2007, Texas Instruments Incorporated
5
Product Folder Link(s): DAC8830 DAC8831
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