- 您現在的位置：買賣IC網 > PDF目錄374026 > ADR318ARJ-REEL7 (ANALOG DEVICES INC) Precision Low Drift SOT-23 Voltage Reference with Shutdown PDF資料下載
參數資料
| 型號： | ADR318ARJ-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Precision Low Drift SOT-23 Voltage Reference with Shutdown |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.8 V, PDSO5 |
| 封裝： | MO-178AA, SOT-23, 5 PIN |
| 文件頁數： | 7/8頁 |
| 文件大?。?/td> | 492K |
| 代理商： | ADR318ARJ-REEL7 |
REV. 0
ADR318
–7–
APPLICATIONS
Basic Voltage Reference Connection
The circuit in Figure 2 illustrates the basic configuration for the
ADR318. Decoupling capacitors are not required for circuit stability.
The ADR318 is capable of driving capacitative loads from 0
μ
F to
10
μ
F. However, a 0.1
μ
F ceramic output capacitor is recommended
to absorb and deliver the charge as is required by a dynamic load.
SHUTDOWN
INPUT
SHDN
ADR318
GND
V
OUT(F)
V
OUT(S)
V
IN
C
I
0.1 F
C
O
OUTPUT
0.1 F
Figure 2. Voltage Reference Connection
Precision Negative Voltage Reference without Precision Resistors
A negative reference can be easily generated by combining the
ADR318 with an op amp. Figure 3 shows this simple negative
reference configuration. V
OUT(F)
and V
OUT(S)
are at virtual ground
and therefore the negative reference can be taken directly from
the output of the op amp. The op amp should be a dual-supply,
low offset, rail-to-rail amplifier, such as the OP1177.
V
OUT(S)
V
OUT(F)
ADR318
SHDN
+V
DD
GND
–VREF
V
IN
OP1177
–V
SS
Figure 3. Negative Reference
General-Purpose Current Source
Many times in low power applications, the need arises for a preci-
sion current source that can operate on low supply voltages. As
shown in Figure 4, the ADR318 can be configured as a precision
current source. The circuit configuration illustrated is a floating
current source with a grounded load. The reference’s output voltage
is bootstrapped across R1, which sets the output current into the
load. With this configuration, circuit precision is maintained for
load currents in the range from the reference’s supply current,
typically 90 mA to approximately 5 mA. The supply current is a
function of I
SET
and will increase slightly at a given I
SET
.
V
OUT(S)
I
SY
(I
SET
)
I
SET
V
OUT(F)
ADR318
+V
DD
GND
V
IN
U1
SHDN
0.1 F
R1
R
L
I
SY
ADJ
I
OUT
=
I
SET
+ I
SV
(I
SET
)
Figure 4. General-Purpose Current Source
相關PDF資料 |
PDF描述 |
|---|---|
| ADR363 | Low Power, Low Noise Voltage References with Sink/Source Capability |
| ADR363A | Low Power, Low Noise Voltage References with Sink/Source Capability |
| ADR363AUJZ-REEL7 | Low Power, Low Noise Voltage References with Sink/Source Capability |
| ADR363B | Low Power, Low Noise Voltage References with Sink/Source Capability |
| ADR363BUJZ-REEL7 | Low Power, Low Noise Voltage References with Sink/Source Capability |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADR318ARJZ-REEL7 | 功能描述:IC VREF SERIES PREC 1.8V SOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準 系列:- 標準包裝:1 系列:- 基準類型:串聯，精度 輸出電壓:4.5V 容差:±800µV 溫度系數:1ppm/°C 輸入電壓:13.5 V ~ 22 V 通道數:1 電流 - 陰極:- 電流 - 靜態:7mA 電流 - 輸出:10mA 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:20-LCC 供應商設備封裝:20-CLCC 包裝:管件 |
| ADR3410 | 制造商:ANADIGICS 制造商全稱:ANADIGICS, Inc 功能描述:50 з High Linearity 1 Watt Amplifier |
| ADR3412 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Micropower, High Accuracy Voltage References |
| ADR3412ARJZ | 制造商:Analog Devices 功能描述:IC VOLT REF 1.25V 6SOT23 制造商:Analog Devices 功能描述:IC, VOLT REF, 1.25V, 6SOT23 |
| ADR3412ARJZ-R2 | 功能描述:IC VREF SERIES PREC 1.2V SOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準 系列:- 產品培訓模塊:Voltage Reference Basics 標準包裝:100 系列:- 基準類型:旁路，精度 輸出電壓:4.096V 容差:±0.075% 溫度系數:50ppm/°C 輸入電壓:- 通道數:1 電流 - 陰極:1µA 電流 - 靜態:- 電流 - 輸出:10mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SOIC 包裝:管件 |
發布緊急采購，3分鐘左右您將得到回復。