收藏本站

Low Noise Micropower 2.5 V and
4.096 V Precision Voltage References
ADR291 / ADR292
ADR292
FEATURES
Supply range
2.8 V to 15 V, ADR291
4.4 V to 15 V, ADR292
Supply current: 15 μA maximum
Low noise: 8 μV and 12 μV p-p (0.1 Hz to 10 Hz)
High output current: 5 mA
Temperature range: ?40°C to +125°C
CONNECTION DIAGRAMS
NC 1 8 NC
ADR291/
V IN 2 7 NC
NC 3 TOP VIEW 6 V OUT
GND 4 (Not to Scale) 5 NC
NC = NO CONNECT
Figure 1. 8-Lead SOIC (R-8)
Pin-compatible with REF02 / REF19x
APPLICATIONS
Portable instrumentation
NC
V IN
NC
GND
1
2
3
4
ADR291/
ADR292
TOP VIEW
(Not to Scale)
8
7
6
5
NC
NC
V OUT
NC
Precision reference for 3 V and 5 V systems
Analog-to-digital and digital-to-analog converter reference
Solar-powered applications
NC = NO CONNECT
Figure 2. 8-Lead TSSOP (RU-8)
GND
Loop-current-powered instruments
V OUT
3
2
1
V IN
ADR291
TOP VIEW
(Not to Scale)
Figure 3. 3-Lead TO-92 (T-3)
GENERAL DESCRIPTION
The ADR291 and ADR292 are low noise, micropower precision
voltage references that use an XFET? reference circuit. The new
XFET architecture offers significant performance improvements
over traditional band gap and buried Zener-based references.
Improvements include one quarter the voltage noise output of
band gap references operating at the same current, very low and
ultralinear temperature drift, low thermal hysteresis, and
excellent long-term stability.
The ADR291/ADR292 family is a series of voltage references
coefficients for the three grades are 8 ppm/°C, 15 ppm/°C, and
25 ppm/°C maximum, respectively. Line regulation and load
regulation are typically 30 ppm/V and 30 ppm/mA, maintaining
the reference’s overall high performance. For a device with 5.0 V
output, refer to the ADR293 data sheet.
The ADR291 and ADR292 references are specified over the
extended industrial temperature range of ?40°C to +125°C.
Devices are available in the 8-lead SOIC, 8-lead TSSOP, and
3-lead TO-92 packages.
providing stable and accurate output voltages from supplies as
low as 2.8 V for the ADR291. Output voltage options are 2.5 V
and 4.096 V for the ADR291 and ADR292, respectively.
Table 1. ADR291/ADR292 Product
Output Initial
Temperature
Coefficient
Quiescent current is only 12 μA, making these devices ideal for
battery-powered instrumentation. Three electrical grades are
available offering initial output accuracies of ±2 mV, ±3 mV,
Part No.
ADR291
ADR292
Voltage (V)
2.500
4.096
Accuracy (±%)
0.08, 0.12, 0.24
0.07, 0.10, 0.15
(ppm/°C) Max
8, 15, 25
8, 15, 25
and ±6 mV maximum for the ADR291, and ±3 mV, ±4 mV,
and ±6 mV maximum for the ADR292. Temperature
Rev. F
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2007–2011 Analog Devices, Inc. All rights reserved.
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
RB-2405S/H CONV DC/DC 1W 24VIN 05VOUT
LM4050CEM3-4.1+T IC VREF SHUNT PREC 4.096V SOT23
TH3D336M010E0800 CAP TANT 33UF 10V 20% 2917
MIC2545A-2BN IC SW CURR LIMIT HI SIDE 8-DIP
TH3D336K010E0800 CAP TANT 33UF 10V 10% 2917
REF198GRUZ IC VREF SRS PREC 4.096V 8-TSSOP
RB-153.3S/H CONV DC/DC 1W 15VIN 3.3VOUT
F971V475MCC CAP TANT 4.7UF 35V 20% 2312
相关代理商/技术参数
ADR291WFRZ-R7 功能描述:IC VREF SERIES PREC 2.5V 8-SOICN RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:XFET® 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR)
ADR291WFRZ-RL 功能描述:IC VREF SERIES PREC 2.5V 8-SOICN RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:XFET® 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR)
ADR292 制造商:AD 制造商全称:Analog Devices 功能描述:Low Noise Micropower Precision Voltage References
ADR292ER 制造商:Analog Devices 功能描述:V-Ref Precision 4.096V 5mA 8-Pin SOIC N Tube 制造商:Analog Devices 功能描述:IC VOLT REF
ADR292ER-REEL 制造商:Analog Devices 功能描述:V-Ref Precision 4.096V 5mA 8-Pin SOIC N T/R
ADR292ER-REEL7 制造商:AD 制造商全称:Analog Devices 功能描述:Low Noise Micropower Precision Voltage References
ADR292ER-RELL 制造商:AD 制造商全称:Analog Devices 功能描述:Low Noise Micropower Precision Voltage References
ADR292ERZ 功能描述:IC VREF SERIES PREC 4.096V 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:XFET® 标准包装:3,000 系列:- 基准类型:旁路，精度 输出电压:3V 容差:±0.5% 温度系数:100ppm/°C 输入电压:- 通道数:1 电流 - 阴极:82µA 电流 - 静态:- 电流 - 输出:15mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-TSSOP（5 引线），SC-88A，SOT-353 供应商设备封装:SC-70-5 包装:带卷 (TR) 其它名称:296-20888-2