- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄5862 > AD5748ACPZ (Analog Devices Inc)IC I/V OUTPUT DRIVER 32LFCSP PDF資料下載
參數(shù)資料
| 型號： | AD5748ACPZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 21/32頁 |
| 文件大小： | 0K |
| 描述： | IC I/V OUTPUT DRIVER 32LFCSP |
| 標準包裝： | 1 |
| 放大器類型： | 儀表 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 2 V/µs |
| 電流 - 輸出 / 通道： | 15mA |
| 電壓 - 電源，單路/雙路(±)： | ±12 V ~ 24 V |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 32-LFCSP-VQ（5x5） |
| 包裝： | 管件 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁當前第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
AD5748
Rev. A | Page 28 of 32
DETAILED DESCRIPTION OF FEATURES
OUTPUT FAULT ALERT—SOFTWARE MODE
In software mode, the AD5748 is equipped with one FAULT
pin; this is an open-drain output allowing several AD5748
devices to be connected together to one pull-up resistor for
global fault detection. In software mode, the FAULT pin is
forced active low by any one of the following fault scenarios:
The voltage at IOUT attempts to rise above the compliance
range, due to an open-loop circuit or insufficient power
supply voltage. The internal circuitry that develops the
fault output avoids using a comparator with window limits
because this requires an actual output error before the fault
output becomes active. Instead, the signal is generated when
the internal amplifier in the output stage has less than
approximately 1 V of remaining drive capability. Thus,
the fault output activates slightly before the compliance
limit is reached. Because the comparison is made within
the feedback loop of the output amplifier, the output
accuracy is maintained by its open-loop gain, and an output
error does not occur before the fault output becomes active.
A short is detected on the voltage output pin (VOUT). The
short-circuit current is limited to 15 mA.
An interface error is detected due to a packet error
checking (PEC) failure. See the Packet Error Checking
section.
If the core temperature of the AD5748 exceeds
approximately 150°C.
OUTPUT FAULT ALERT—HARDWARE MODE
In hardware mode, the AD5748 is equipped with three fault
pins: VFAULT, IFAULT, and TEMP. These are open-drain
outputs allowing several AD5748 devices to be connected
together to one pull-up resistor for global fault detection. In
hardware control mode, these fault pins are forced active by
any one of the following fault scenarios:
Open-circuit detect. The voltage at IOUT attempts to rise
above the compliance range, due to an open-loop circuit
or insufficient power supply voltage. The internal circuitry
that develops the fault output avoids using a comparator
with window limits because this requires an actual output
error before the fault output becomes active. Instead, the
signal is generated when the internal amplifier in the
output stage has less than approximately 1 V of remaining
drive capability. Thus, the fault output activates slightly
before the compliance limit is reached. Because the compari-
son is made within the feedback loop of the output amplifier,
the output accuracy is maintained by its open-loop gain,
and an output error does not occur before the fault output
becomes active. If this fault is detected, the IFAULT pin is
forced low.
A short is detected on the voltage output pin (VOUT).
The short-circuit current is limited to 15 mA. If this fault
is detected, the VFAULT pin is forced low.
If the core temperature of the AD5748 exceeds approx-
imately 150°C. If this fault is detected, the TEMP pin is
forced low.
VOLTAGE OUTPUT SHORT-CIRCUIT PROTECTION
Under normal operation, the voltage output sinks and sources
up to 12 mA and maintains the specified operation. The maxi-
mum current that the voltage output delivers is 15 mA; this is
the short-circuit current.
ASYNCHRONOUS CLEAR (CLEAR)
CLEAR is an active high clear that allows the voltage output
to be cleared to either zero-scale code or midscale code and is
user-selectable via the CLRSEL pin or the CLRSEL bit of the
input shift register, as described in Table 7. (The clear select
feature is a logical OR function of the CLRSEL pin and the
CLRSEL bit.) The current loop output clears to the bottom of
its programmed range. When the CLEAR signal is returned
low, the output returns to its programmed value or a new value
if programmed. A clear operation can also be performed via the
clear command in the control register.
Table 10. CLRSEL Options
CLRSEL
Output Clear Value
Unipolar Output
Voltage Range
Unipolar Current Output Range
0
0 V
Zero scale; for example:
4 mA on the 4 mA to 21 mA range
0 mA on the 0 mA to 21 mA range
1
Midscale
Midscale; for example:
12.5 mA on the 4 mA to 21 mA range
10.5 mA on the 0 mA to 21 mA range
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FTSH-135-01-L-DV | CONN HEADER 70POS DUAL .05" SMD |
| LT1013IS8#TRPBF | IC PRECISION OP-AMP DUAL 8-SOIC |
| FTS-135-03-L-DV | CONN HEADER 70POS DUAL .05" SMD |
| LT1013IS8#TR | IC OP AMP PRECISION DUAL 8SOIC |
| 929715-03-21-I | CONN HEADER .100 DUAL STR 42POS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD5748ACPZ-RL7 | 功能描述:IC I/V OUTPUT DRIVER 32LFCSP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 放大器類型:電流檢測 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:- 增益帶寬積:125kHz -3db帶寬:- 電流 - 輸入偏壓:- 電壓 - 輸入偏移:100µV 電流 - 電源:1.1µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:4-WFBGA，CSPBGA 供應(yīng)商設(shè)備封裝:4-UCSP（2x2） 包裝:剪切帶 (CT) 其它名稱:MAX9634WERS+TCT |
| AD5749 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Industrial Current Out Driver, Single-Supply, 55 V Maximum Supply, Programmable Ranges |
| AD5749ACPZ | 功能描述:IC CURRENT OUT DVR 32-LFCSP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:MicroAmplifier™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:5pA 電壓 - 輸入偏移:1500µV 電流 - 電源:220µA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 36 V，±2.25 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:剪切帶 (CT) 其它名稱:296-29363-1 |
| AD5749ACPZ-RL7 | 功能描述:IC CURRENT OUT DVR 32-LFCSP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| AD574A | 制造商:AD 制造商全稱:Analog Devices 功能描述:Complete 12-Bit A/D Converter |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。