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ALD500R-50SE 参数 Datasheet PDF下载

ALD500R-50SE图片预览
型号: ALD500R-50SE
PDF下载: 下载PDF文件 查看货源
内容描述: 具有精密电压基准精密积分模拟处理器 [PRECISION INTEGRATING ANALOG PROCESSOR WITH PRECISION VOLTAGE REFERENCE]
分类和应用:
文件页数/大小: 12 页 / 97 K
品牌: ALD [ ADVANCED LINEAR DEVICES ]
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A
DVANCED
L
INEAR
D
EVICES,
I
NC.
ALD500RAU/ALD500RA/ALD500R
PRECISION INTEGRATING ANALOG PROCESSOR
WITH PRECISION VOLTAGE REFERENCE
APPLICATIONS
4 1/2 digits to 5 1/2 digits plus sign measurements
Precision analog signal processor
Precision sensor interface
High accuracy DC measurement functions
Portable battery operated instruments
Computer peripheral
PCMCIA
BENEFITS
Low cost, simple functionality
Wide dynamic signal range
Very high noise immunity
Automatic compensation and cancellation
of error sources
• Easy to use to acquire bipolar signals
• Up to 19 bit (18 bit + sign bit) single conversion
or 21 bit (20 bit + sign bit) multiple conversion
and noise performance
• Inherently linear and stable with temperature
and component variations
FEATURES
Resolution up to 18 bits plus sign bit and over-range bit
Accuracy independent of input source impedances
Accurate on-chip voltage reference
Tempco as low as 10 ppm/°C guaranteed
Chip select - power down mode
High input impedance of 10
12
Inherently filters and integrates any external noise spikes
Differential analog input
Wide bipolar analog input voltage range
±3.5V
Automatic zero offset compensation
Low linearity error - as low as 0.001% typical
Fast zero-crossing comparator - 1µs
Low power dissipation - 6mW typical
Automatic internal polarity detection
Low input current - 2pA typical
Optional digital control from a microcontroller, an ASIC, or
a dedicated digital circuit
• Flexible conversion speed vs. resolution trade-off
PIN CONFIGURATION
ALD500R
I
B
C
INT
V-
C
AZ
B
UF
AGND
C-
REF
C+
REF
N/C
N/C
1
2
3
4
5
6
7
8
9
10
QE, PE, SE PACKAGE
20
19
18
17
16
15
14
13
12
11
C
S
V+
DGND
C
OUT
B
A
V+
IN
V-
IN
V+
REF
V-
REF
* N/C pin is connected internally. Connect to V-.
Ordering Information
Resolution Endpoint
Linearity
16 bit
17 bit
18 bit
17 bit
18 bit
17 bit
18 bit
18 bit
0.015%
0.01%
0.005%
0.01%
0.005%
0.01%
0.005%
0.005%
0.3% 20ppm/C
0.3% 20ppm/C
0.2% 10ppm/C
Voltage Reference
Accuracy/Tempco
20L PDIP
0.5% 50ppm/C
0.3% 20ppm/C
ALD500R-50PE
ALD500RA-20PE
ALD500RAU-20PE
ALD500RA-10PE
ALD500RAU-10PE
ALD500RA-20PEI
ALD500RAU-20PEI
20L SOIC
ALD500R-50SE
ALD500RA-20SE
ALD500RAU-20SE
ALD500RA-10SE
ALD500RAU-10SE
ALD500RA-20SEI
ALD500RAU-20SEI
Package Type
20L QSOP
ALD500R-50QE
ALD500RA-20QE
ALD500RAU-20QE
ALD500RA-10QE
ALD500RAU-10QE
ALD500RA-20QEI
ALD500RAU-20QEI
ALD500RAU-20DE
-55°C to +125°C
-40°C to +85°C
0°C to 70°C
20LCDIP
0°C to 70°C
0°C to 70°C
Operating
Temperature
*
Contact factory for customized voltage reference voltage levels, accuracy and tempco specifications.
Rev. 1.01 © 1999 Advanced Linear Devices, Inc., 415 Tasman Drive, Sunnyvale, California 94089-1706 Tel: (408) 747-1155, Fax: (408) 747-1286
http://www.aldinc.com