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參數(shù)資料
| 型號(hào)： | DAC7613 |
| 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(dòng)器/接收器（單電源RS232C接口線收發(fā)器（2發(fā)2收）） |
| 文件頁(yè)數(shù)： | 8/9頁(yè) |
| 文件大?。?/td> | 559K |
| 代理商： | DAC7613 |
8
DAC7613
ANALOG OUTPUTS
When V
SS
= –5V (dual supply operation), the output ampli-
fier can swing to within 2.25V of the supply rails, guaran-
teed over the –40
°
C to +85
°
C temperature range. With
V
SS
= 0V (single-supply operation), the output can swing to
ground. Note that the settling time of the output op amp will
be longer with voltages very near ground. Additionally, care
must be taken when measuring the zero-scale error when
V
SS
= 0V. Since the output voltage cannot swing below
ground, the output voltage may not change for the first few
digital input codes (000
H
, 001
H
, 002
H
, etc.) if the output
amplifier has a negative offset.
The behavior of the output amplifier can be critical in some
applications. Under short-circuit conditions (DAC output
shorted to ground), the output amplifier can sink a great deal
more current than it can source. See the Specifications table
for more details concerning short-circuit current.
REFERENCE INPUTS
The reference inputs, V
REFL
and V
REFH
, can be any voltage
between V
SS
+ 2.25V and V
DD
– 2.25V provided that V
REFH
is at least 1.25V greater than V
REFL
. The minimum output of
each DAC is equal to V
REFL
plus a small offset voltage
(essentially, the offset of the output op amp). The maximum
output is equal to V
REFH
plus a similar offset voltage. Note
that V
SS
(the negative power supply) must either be
connected to ground or must be in the range of –4.75V to
–5.25V. The voltage on V
SS
sets several bias points within
the converter. If V
SS
is not in one of these two configura-
tions, the bias values may be in error and proper operation
of the device is not guaranteed.
The current into the V
REFH
input depends on the DAC output
voltages and can vary from a few microamps to approxi-
mately 0.1 milliamp. The V
REFH
source will not be required
to sink current, only source it. Bypassing the reference
voltage or voltages with at least a 0.1
μ
F capacitor placed as
close to the DAC7613 package is strongly recommended.
DIGITAL INTERFACE
Table I shows the basic control logic for the DAC7613. Note
that the internal register is level triggered and not edge
triggered. When the appropriate signal is LOW, the register
becomes transparent. When this signal is returned HIGH, the
digital word currently in the register is latched. The first
register (the input register) is triggered via the R/W, and CS
inputs. The second register (the DAC register) is transparent
when LOADDAC input is pulled LOW.
The double-buffered architecture is mainly designed so that
the DAC input register can be written at any time and then
the DAC voltage updated by pulling LOADDAC LOW.
INPUT
REGISTER
DAC
R/W
CS
RST
LOADDAC
REGISTER
MODE
L
L
H
X
X
X
L
L
L
H
H
H
H
H
H
H
H
L
L
H
H
L
H
X
Write
Write
Read
Hold
Hold
Hold
Write
Hold
Hold
Update
Hold
Reset
Write
Write Input
Read Input
Update
Hold
Reset
X = Don’t Care.
TABLE I. DAC7613 Control Logic Truth Table.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DAC7613E | Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????) |
| DAC7613EB | Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????) |
| DAC7614PB | Quad, Serial Input, 12-Bit, Voltage Output DIGITAL-TO-ANALOG CONVERTER |
| DAC7614UB | DB9 F/F SERIAL CABLE 10FT. |
| DAC7614EB | Quad, Serial Input, 12-Bit, Voltage Output DIGITAL-TO-ANALOG CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DAC7613E | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit Vltg Output 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(shí)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 |
| DAC7613E | 制造商:BURR-BROWN 功能描述:IC 12BIT DAC SMD 7613 SSOP24 制造商:Texas Instruments 功能描述:Digital-Analog Converter IC Interface Ty |
| DAC7613E/1K | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit Vltg Output 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(shí)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 |
| DAC7613E/1KG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit Vltg Output 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(shí)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 |
| DAC7613E-1K | 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-Bit, Voltage Output DIGITAL-TO-ANALOG CONVERTER |
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