参数资料
| 型号： | ADL5315-EVAL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADL5315 |
| 设计资源： | Interfacing ADL5315 to Translinear Logarithmic Amplifier (CN0056) |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电流镜像 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADL5315 |
| 主要属性： | 电流镜像，高端，3nA ~ 3mA |
| 次要属性： | 2.7 ~ 8 V 1% 线性可调式输入电流限制 |
| 已供物品： | 板 |
| 相关产品： | ADL5315ACPZ-R7DKR-ND - IC CURRENT MONITOR 8LFCSP ADL5315ACPZ-R7CT-ND - IC CURRENT MONITOR 8LFCSP ADL5315ACPZ-R7TR-ND - IC CURRENT MONITOR 8LFCSP |
Precision Wide Range (3 nA to 3 mA)
High-Side Current Mirror
ADL5315
FEATURES
Accurately mirrors input current (1:1 ratio) over 6 decades
Linearity 1% from 3 nA to 3 mA
FUNCTIONAL BLOCK DIAGRAM
ADL5315
Stable mirror input voltage
Voltage held 1 V below supply using internal reference
or can be set externally
Adjustable input current limit
2.7 V to 8 V single-supply operation
Miniature 8-lead LFCSP (2 mm × 3 mm)
4
3
VOLTAGE
REFERENCE
COMM
20k Ω
SREF
CURRENT
LIMITING
CURRENT
MIRROR
1:1
RLIM
VPOS
5
6
APPLICATIONS
2
VSET
NC
7
Optical power monitoring from a single photodiode
General voltage biasing with precision current monitoring
1
INPT
I PD
IOUT
I PD
8
Voltage-to-current conversion
Figure 1.
GENERAL DESCRIPTION
The ADL5315 is a wide input current range, precision high-side
current mirror featuring a stable and user-adjustable input
voltage. It is optimized for use with PIN photodiodes, but its
flexibility and wide operating range make it suitable for a broad
array of additional applications. Over the 3 nA to 3 mA range,
the current sourced from the INPT pin is accurately mirrored
with a 1:1 ratio and sourced from the IOUT output pin. In a
typical photodiode application, the output drives a current-
input logarithmic amplifier to produce a linear-in-dB output
representing the optical power incident upon the photodiode.
For linear voltage output, a single resistor to ground is all that is
required. The photodiode anode can be connected to a high
speed transimpedance amplifier for the extraction of the data
stream. The voltage at the INPT pin is temperature stable with
respect to the voltage at the VSET input pin, which it tracks. A
temperature stable reference voltage is provided at the SREF
pin, which, when tied to VSET, fixes the voltage at INPT 1.0 V
below VPOS. VSET can also be driven from an external source.
Rev. 0
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.
The VSET input has very low input current and can be driven
as low as the bottom rail, facilitating nonloading voltage-to-
current conversion as well as minimizing dark current in
photodiode applications.
The ADL5315 also features adjustable input current limiting
using an external resistor from RLIM to VPOS. The maximum
current sourced by INPT (and IOUT) can be set between 1 mA
and 16 mA, beyond which the voltage at INPT falls rapidly
from its setpoint. Connecting RLIM directly to VPOS provides
basic input short-circuit protection with the default current
limit of 16 mA typical.
The ADL5315 is available in a 2 mm × 3 mm, 8-lead LFCSP and
is specified for operation from ?40°C to +85°C.
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 ? 2005 Analog Devices, Inc. All rights reserved.
相关PDF资料 |
PDF描述 |
|---|---|
| ADM00333 | BOARD EVAL FOR PIC18F87J72 |
| ADM00344 | BOARD DEMO EVAL FOR RE46C190 |
| ADM00345 | BOARD DEMO 3PH BLDC CTLR MTD6505 |
| ADM1026EBZEVB | BOARD EVAL FOR ADM1026 |
| ADN8831-EVALZ | BOARD EVAL FOR ADN8831 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADL5317 | 制造商:AD 制造商全称:Analog Devices 功能描述:Avalanche Photodiode Bias Controller and Wide Range (5 nA to 5 mA) Current Monitor |
| ADL5317ACPZ-REEL7 | 功能描述:IC CURRENT MONITOR 16LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳流/电流管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 功能:电流开关 检测方法:- 精确度:±10% 输入电压:1.7 V ~ 5.5 V 电流 - 输出:600mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-UFQFN 供应商设备封装:10-UTQFN（1.4x1.8） 包装:管件 |
| ADL5317ACPZ-WP | 制造商:Analog Devices 功能描述:SP Amp LOG Amp Single 6V/80V 16-Pin LFCSP EP Tray 制造商:Analog Devices 功能描述:SP AMP LOG AMP SGL 6V/80V 16LFCSP EP - Bulk |
| ADL5317-EVAL | 制造商:Analog Devices 功能描述:EVAL BD FOR AVALANCHE PHOTODIODE BIAS CNTRLR AND WIDE RANGE - Bulk |
| ADL531A-53M0 | 制造商:Panasonic Industrial Company 功能描述:VALVE |
发布紧急采购，3分钟左右您将得到回复。