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AMS385AN

Voltage Reference, Trim/Adjustable,

器件类别:电源/电源管理    电源电路   

厂商名称:AMS

厂商官网:https://ams.com/zh

器件标准:

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器件参数
参数名称
属性值
是否Rohs认证
符合
厂商名称
AMS
包装说明
, SIP3,.1,50
Reach Compliance Code
unknown
端子数量
3
最高工作温度
70 °C
最低工作温度
最大输出电压
5.3 V
最小输出电压
1.24 V
封装主体材料
PLASTIC/EPOXY
封装等效代码
SIP3,.1,50
认证状态
Not Qualified
表面贴装
NO
温度等级
COMMERCIAL
端子节距
1.27 mm
端子位置
SINGLE
微调/可调输出
YES
最大电压容差
0.9%
文档预览
Advanced
Monolithic
Systems
FEATURES
AMS285/AMS385
ADJUSTABLE MICROPOWER VOLTAGE REFERENCE DIODE
APPLICATIONS
Battery Powered Systems
Instrumentation
A/D, D/A Converters
Temperature measurement
Current sources
Notebook/Personal Computer
Monitors/ VCR/ TV
Pagers
Adjustable from 1.24V to 5.30V
Operating Current 10µA to 20mA
µ
1% and 2% Initial Tolerance
1Ω Dynamic Impedance
Low Temperature Coefficient
1.2V Device and 2.5V Device also available
AMS285-1.2 and AMS285-2.5 series, respectively
AMS385-1.2 and AMS385-2.5 series.
GENERAL DESCRIPTION
The AMS285/AMS385 are three-terminal micropower band-gap voltage reference diodes. They feature a very low dynamic
impedance and good temperature coefficient, operating from 1.24V to 5.3V and over a 10µA to 20mA current range. On-chip
trimming is used to provide tight voltage tolerance. Since the AMS285/AMS385 is a band-gap reference, uses only transistors
and resistors, low noise and good long-term stability result. Careful design of the AMS285/AMS385 has made the device
exceptionally tolerant of capacitive loading, making it easy to use in almost any reference application. The wide dynamic
operating range allows its use with widely varying supplies with excellent regulation. The extremely low power drain of the
AMS285/AMS385 makes these reference diodes useful for micropower circuitry. These voltage references can be used to
make portable meters, regulators or general purpose analog circuitry with battery life approaching shelf life.
Further more, the wide operating current allows it to replace older references with a tight tolerance part.
The AMS285 is operational in the full industrial temperature range of -40°C to 85°C while AMS385 is operating over a 0°C
to 70°C temperature range. The AMS285/AMS385 are available in TO-92, SO-8 and SOT-89 packages.
ORDERING INFORMATION:
TOL.
±12mV
±25mV
±25mV
±12mV
±25mV
±25mV
TO-92
AMS285AN
AMS285BN
AMS285CN
AMS385AN
AMS385BN
AMS385CN
PACKAGE TYPE
8 LEAD SOIC
AMS285AS
AMS285BS
AMS285CS
AMS385AS
AMS385BS
AMS385CS
SOT-89
AMS285AL
AMS285BL
AMS285CL
AMS385AL
AMS385BL
AMS385CL
OPERATING
TEMPERATURE RANGE
-40 to 85° C
-40 to 85° C
-40 to 85° C
0 to 70° C
0 to 70° C
0 to 70° C
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS285/AMS385
ABSOLUTE MAXIMUM RATINGS
Reverse Current
Forward Current
Operating Temperature Range
AMS285
AMS385
30mA
10mA
-40°C to 85°C
0°C to 70°C
Storage temperature
Soldering information
TO-92 package: 10 sec.
SOIC package: Vapor phase (60 sec)
Infrared (15 sec.)
SOT-89 package: 10 sec.
-55°C to +150°C
260°C
215°C
220°C
265°C
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at I
R
= 100
µA,
and T
A
= +25°C unless otherwise specified.
Parameter
Reference Voltage
Dynamic Output
Impedance
Conditions
I
R
=100
µA
I
AC
=0.1I
R
, f = 20Hz
V
OUT
= V
REF
V
OUT
= 5.3V
10µA
≤I
R
≤1mA
1mA
≤I
R
≤20mA
V
OUT
= V
REF
V
OUT
= 5.3V
10Hz
f
10kHz
V
OUT
= V
REF
V
OUT
= 5.3V
Min
1.228
AMS285A
Typ
Max
1.240
0.3
0.7
0.2
4
6
30
1.0
10
9
45
1.252
Min
1.215
AMS285B
Typ
1.240
0.3
0.7
0.2
4
6
30
Max
1.265
AMS285C
Min
Typ
Max
1.215
1.240
0.3
0.7
1.265
Units
V
Reference Voltage
Change with Current
Min. Operating
Current (Note 4)
Wide Band Noise
(Note 5)
1.0
10
9
45
0.2
4
6
30
1.0
10
9
45
mV
mV
µA
µA
µV
rms
µV
rms
50
170
25
50
170
50
50
170
100
150
Temperature Coeff.
(Note 6)
Long Term Stability
(Note 5)
T
A
=25°C±.1°C
T = 1000 Hr
20
ppm/°C
20
20
ppm
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at I
R
= 100
µA,
and T
A
= +25°C unless otherwise specified.
Parameter
Reference Voltage
Dynamic Output
Impedance
Conditions
I
R
=100
µA
I
AC
=0.1I
R
, f = 20Hz
V
OUT
= V
REF
V
OUT
= 5.3V
10µA
≤I
R
≤1mA
1mA
≤I
R
≤20mA
V
OUT
= V
REF
V
OUT
= 5.3V
10Hz
f
10kHz
V
OUT
= V
REF
V
OUT
= 5.3V
Min
1.228
AMS285A
Typ
Max
1.240
0.3
0.7
0.2
4
6
30
1.0
10
9
45
1.252
Min
1.215
AMS285B
Typ
1.240
0.3
0.7
0.2
4
6
30
Max
1.265
AMS285C
Min
Typ
Max
1.215
1.240
0.3
0.7
1.265
Units
V
Reference Voltage
Change with Current
Min. Operating
Current (Note 4)
Wide Band Noise
(Note 5)
1.0
10
9
45
0.2
4
6
30
1.0
10
9
45
mV
mV
µA
µA
50
170
25
50
170
50
50
170
100
150
µV
rms
µV
rms
ppm/°C
Temperature Coeff.
(Note 6)
Long Term Stability
(Note 5)
T
A
=25°C±.1°C
T = 1000 Hr
20
20
20
ppm
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS285/AMS385
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics
.
The
guaranteed specifications apply only for the test conditions listed.
Note 2:
For elevated temperature operation, T
j
max is:
AMS285
AMS385
+125°C
+100°C
Thermal Resistance
ϕ
JA
(junction to ambient)
TO-92
170°C/W (0.125” leads)
SO-8
165°C/W
SOT-89
160°C/W
Note 3:
Parameters identified with
boldface type
apply at temperature extremes. All other numbers apply at T
A
= T
J
= 25°C.
Note 4:
Guaranteed and 100% production tested.
Note 5:
Guaranteed but not 100% production tested. These limits are not used to calculate average outgoing quality levels.
Note 6:
The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures between the operating T
MAX
and T
MIN
, divided by T
MAX
- T
MIN
. The measured temperatures are 0°C, 25°C, 70°C and 85°C.
PIN CONNECTIONS
TO-92
Plastic Package (N)
8L SOIC
SO Package (S)
+
8
N/C N/C ADJ
7
6
5
SOT-89
(L)
FB
3
+
2
-
1
3
1
2
3
N/C N/C N/C
4
-
FB
2
+
1
-
Bottom View
Top View
Top View
TYPICAL APPLICATIONS
1.2V Reference
9V
R1
500k
1.2V
+
AMS385
-
FB
AMS385
-
FB
AMS385
R3
364k
-
+
5.0V Reference
9V
R1
50k
Precision 10V Reference
15V
R1
5k
V
OUT
10V
+
FB
R3
68.1k
1%
R2
301k
1%
R3
V
OUT
=
1.24
R2
+
1
5V
R2
120k
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS285/AMS385
TYPICAL APPLICATIONS
(Continued)
Low AC Noise Reference
15V
R1
100k
V
OUT
10V
+
AMS385
-
C1
0.47µF
FB
+ C2
10µF
R2
120k
Current Source
+15V
+
AMS385
-
FB
R1
2N2905
2N3964
R2
120k
R4
33
R3
360kΩ
1
µA<
I < 100 mA
1.24V
I
OUT
=
R1
25V Low Current Shunt Regulator
V+
R3
200mA Shunt Regulator
V+
R4
50
µA<
I < 200 mA
V
OUT
2.5V
100
µA<
I < 5 mA
V
OUT
25V
R1
+
120k
FB
R2
2.4M
+
AMS385
-
2N2219
R3
1k
FB
R1
120k
AMS385
-
2N5115
R2
120k
Voltage Level Detector
Voltage Level Detector
+
AMS385
-
D1
FB
R1
120k
D1
R2
1M
+
AMS385
-
FB
R1
120k
λ
λ
R3
200
-5V
R2
1M
R3
330
< -12V
LED ON
-5V
LED ON
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS285/AMS385
TYPICAL APPLICATIONS
(Continued)
Bidirectional Clamp
±
2.4V
V
IN
I
R1
V
OUT
D2
1N457
I
Bidirectional Adjustable Clamp
±
1.8V to
±
2.4V
V
IN
R1
V
OUT
D2
1N457
Bidirectional Adjustable Clamp
±
2.4V to
±
6V
V
IN
I
R1
V
OUT
+
AMS385
-
R2
330k
FB
R3
1M
FB
R4
330k
D2
1N457
-
AMS385
+
+
AMS385
-
D1
1N457
FB
R2
510k
FB
R3
510k
-
R2
510k
FB
+
AMS385
-
D1
1N457
R3
510k
FB
R4
390k
-
AMS385
+
AMS385
+
D1
1N457
TYPICAL PERFORMANCE CHARACTERISTICS
REFERENCE VOLTAGE CHANGE (mV)
0
∆Y
∆T
-5
REFERENCE VOLTAGE CHANGE (mV)
AMS285 Typical Temperature Coefficient
AMS385 Typical Temperature Coefficient
0
∆Y
∆T
-5
TEMPCO
=
Y
T
-10
-50 -40 -25 0
25 50 75 80 100 125
TEMPERATURE (° C)
-10
0
25
70
TEMPERATURE (° C)
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
查看更多>
参数对比
与AMS385AN相近的元器件有:AMS285AN、AMS285BL、AMS285BS、AMS385CL、AMS385AS。描述及对比如下:
型号 AMS385AN AMS285AN AMS285BL AMS285BS AMS385CL AMS385AS
描述 Voltage Reference, Trim/Adjustable, Voltage Reference, Trim/Adjustable, Voltage Reference, Trim/Adjustable, Voltage Reference, Trim/Adjustable, PDSO8, Voltage Reference, Trim/Adjustable, Voltage Reference, Trim/Adjustable, PDSO8,
是否Rohs认证 符合 符合 符合 符合 符合 符合
厂商名称 AMS AMS AMS AMS AMS AMS
包装说明 , SIP3,.1,50 , SIP3,.1,50 , TO-243 SOP, SOP8,.25 , TO-243 SOP, SOP8,.25
Reach Compliance Code unknown unknown unknown unknown unknown unknown
端子数量 3 3 3 8 3 8
最高工作温度 70 °C 85 °C 85 °C 85 °C 70 °C 70 °C
最大输出电压 5.3 V 5.3 V 5.3 V 5.3 V 5.3 V 5.3 V
最小输出电压 1.24 V 1.24 V 1.24 V 1.24 V 1.24 V 1.24 V
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装等效代码 SIP3,.1,50 SIP3,.1,50 TO-243 SOP8,.25 TO-243 SOP8,.25
认证状态 Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
表面贴装 NO NO YES YES YES YES
温度等级 COMMERCIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL COMMERCIAL COMMERCIAL
微调/可调输出 YES YES YES YES YES YES
最大电压容差 0.9% 0.9% 2.01% 2.01% 2.01% 0.9%
端子节距 1.27 mm 1.27 mm - 1.27 mm - 1.27 mm
端子位置 SINGLE SINGLE - DUAL - DUAL
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