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參數(shù)資料
| 型號： | DAC7731 |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????) |
| 中文描述： | 單電源RS232C接口線路驅(qū)動器/接收器（單電源RS232C接口線收發(fā)器（2發(fā)2收）） |
| 文件頁數(shù)： | 3/19頁 |
| 文件大?。?/td> | 360K |
| 代理商： | DAC7731 |
DAC7731
SBAS249
3
www.ti.com
DYNAMIC PERFORMANCE
Settling Time to
±
0.003%
20V Output Step
R
= 5k
, C
= 200pF,
with external REF
OUT
to REF
IN
filter
(5)
3
5
μ
s
Digital Feedthrough
Output Noise Voltage
DIGITAL INPUT
V
IH
V
IL
DIGITAL OUTPUT
V
OH
V
OL
POWER SUPPLY
V
DD
V
CC
V
SS
2
nV-s
nV/
√
Hz
at 10kHz
100
|I
H
| < 10
μ
A
|I
L
| < 10
μ
A
0.7
V
DD
V
V
0.3
V
DD
I
OH
=
–
0.8mA
OL
= 1.6mA
3.6
V
V
0.4
+4.75
+11.4
–
15.75
–
15.75
+5.0
+5.25
+15.75
–
11.4
–
4.75
V
V
V
V
μ
A
mA
mA
mW
mW
Bipolar Operation
Unipolar Opeation
I
DD
I
CC
I
Power
100
4
–
2.5
85
100
Unloaded
Unloaded
6
–
4
No Load, Ext. Reference
No Load, Int. Reference
150
TEMPERATURE RANGE
Specified Performance
Specifications same as grade to the left.
NOTES: (1)
With minimum V
/V
requirements, internal reference enabled. (2) Please refer to the "Theory of Operation" section for more information with respect to output voltage
configurations. (3) See Figure 11 for gain and offset adjustment connection diagrams when using the internal reference. (4) The minimum value for REF
IN
must be equal to the greater
of V
SS
+14V and +4.75V, where +4.75V is the minimum voltage allowed. (5) Reference low-pass filter values: 100k
, 1.0
μ
F (see Figure 14).
–
40
+85
°
C
ELECTRICAL CHARACTERISTICS
(Cont.)
All specifications at T
A
= T
MIN
to T
MAX
, V
CC
= +15V, V
SS
=
–
15V, V
DD
= +5V, Internal reference enabled, unless otherwise noted.
DAC7731E
DAC7731EB
DAC7731EC
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Top View
SSOP
PIN CONFIGURATION
PIN
NAME
DESCRIPTION
1
2
3
4
V
CC
Positive Analog Power Supply
Internal Reference Output
Reference Input
Internal Reference Trim. (Acts as a gain adjustment
input when the internal reference is used.)
Buffered Output from REF
, can be used to drive
external devices. Internally, this pin directly drives the
DAC's circuitry.
Offsetting Resistor
Analog ground
Feedback Resistor 2, used to configure DAC output
range.
Feedback Resistor 1, used to configure DAC output
range.
Summing Junction of the Output Amplifier
DAC Voltage Output
Digital Power Supply
Digital Ground
Reserved, Connect to DGND
No Connection
V
reset; active LOW, depending on the state of
RSTSEL, the DAC register is either reset to mid-
scale or min-scale.
DAC register load control, rising dege triggered. Data
is loaded from the input register to the DAC register.
Serial Data Input. Data is latched into the input
register on the rising edge of SCLK.
Serial Data Output, delayed 16 SCLK clock cycles.
Chip Select, Active LOW
Serial Clock Input
Reset Select; determines the action of RST. If HIGH,
RST will reset the DAC register to mid-scale. If LOW,
RST will reset the DAC register to min-scale.
Enables internal +10V reference (REF
OUT
), active
LOW.
Negative Analog Power Supply
REF
OUT
REF
REFADJ
5
V
REF
6
7
8
R
AGND
RFB2
9
RFB1
10
11
12
13
14
15
16
SJ
V
OUT
V
DGND
TEST
NC
RST
17
LDAC
18
SDI
19
20
21
22
SDO
CS
SCLK
RSTSEL
23
REFEN
24
V
SS
PIN DESCRIPTIONS
V
CC
REF
OUT
REF
IN
REFADJ
V
REF
R
OFFSET
AGND
RFB2
RFB1
SJ
V
OUT
V
DD
V
SS
REFEN
RSTSEL
SCLK
CS
SDO
SDI
LDAC
RST
NC
TEST
DGND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
DAC7731
NOTE: (1) RST, LDAC, SDI, CS and SCK are Schmitt-triggered inputs.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DAC7731E | 16-Bit, Voltage Output, Serial Input DIGITAL-TO-ANALOG CONVERTER |
| DAC7731E1K | 16-Bit, Voltage Output, Serial Input DIGITAL-TO-ANALOG CONVERTER |
| DAC7731EB | 16-Bit, Voltage Output, Serial Input DIGITAL-TO-ANALOG CONVERTER |
| DAC7731EB1K | 16-Bit, Voltage Output, Serial Input DIGITAL-TO-ANALOG CONVERTER |
| DAC7731EC | 16-Bit, Voltage Output, Serial Input DIGITAL-TO-ANALOG CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DAC7731E | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Sng Ch W/Int +10V Ref & Ser I/F RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC7731E/1K | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Sng Ch W/Int +10V Ref & Ser I/F RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC7731E/1KG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Sng Ch W/Int +10V Ref & Ser I/F RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC7731E1K | 制造商:BB 制造商全稱:BB 功能描述:16-Bit, Voltage Output, Serial Input DIGITAL-TO-ANALOG CONVERTER |
| DAC7731EB | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Sng Ch W/Int +10V Ref & Ser I/F RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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