ADMOS AMS236_05

Advanced
Monolithic
Systems
AMS236/AMS336
VOLTAGE REFERENCE DIODE
RoHS compliant
FEATURES
APPLICATIONS
• Low Temperature Coefficient
• Wide Operating Current Range
• Guaranteed Temperature Stability
• Max. 0.6Ω Dynamic Impedance (A grade)
• ±1% Initial Tolerance Available
• Power Supplies
• Instrumentation
• 8 Bit A/D, D/A Reference
• Current Loop Measurement and Control Systems
• Reference for 5V Systems
GENERAL DESCRIPTION
The AMS236/AMS336 are precision band-gap voltage reference diodes. These voltage reference features a very low dynamic
impedance and good temperature coefficient, operating over a wide current range of 400µA to 10mA. On-chip trimming is
used to provide tight tolerance and minimize temperature drift. A third terminal allows the reference voltage to be trimmed
±5%.
The AMS236/AMS336 are used as a precision 2.5V low voltage reference for digital voltmeters, power supplies or op amp
circuitry, and the 2.5V make it easy to obtain a stable reference from 5V logic supplies.
The AMS236 is rated for operation over -25°C to +85°C while the AMS336 is rated over a 0°C to 70°C temperature range.
The AMS236/AMS336 are available in TO-92 and SO-8 packages.
ORDERING INFORMATION:
TOL.
±25mV
±50mV
±50mV
±100mV
PACKAGE TYPE
TO-92
AMS236AN
AMS236BN
AMS336AN
AMS336BN
OPERATING
8 LEAD SOIC
AMS236AS
AMS236BS
AMS336AS
AMS336BS
TEMPERATURE RANGE
-25°C to +85°C
-25°C to +85°C
0°C to 70°C
0°C to 70°C
PIN CONNECTIONS
TO-92
Plastic Package (N)
3
2
1
8L SOIC
SO Package (S)
+
8
1
N/C N/C ADJ
7
6
5
2
3
4
-
N/C N/C N/C
Bottom View
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Top View
Phone (925) 443-0722
Fax (925) 443-0723
AMS236/AMS336
ABSOLUTE MAXIMUM RATINGS (Note 1)
Reverse Current
Forward Current
Operating Temperature Range
AMS236
AMS336
15mA
10mA
Storage temperature
Soldering information (25 sec)
-55°C to +150°C
265°C
-25°C to +85°C
0°C to +70°C
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at IR = 1 mA, and TA = +25°C unless otherwise specified.
Parameter
Conditions
Reverse Breakdown Voltage
Reverse Dynamic Impedance
AMS236A
Typ
Max
Min
2.475
Min
2.500
2.525
0.2
0.4
f = 100Hz
Units
2.500
2.550
V
0.6
0.2
0.6
Ω
1
0.4
1
2.6
6
2.6
6
3
10
3
10
9
3.5
9
Reverse Breakdown Voltage
Change with current
400µA ≤IR ≤10mA
Temperature Stability
-25°C ≤ TA ≤ +85°C
3.5
Long Term Stability (Note 4)
TA=25°C±0.1°C
T = 1000 Hr
20
2.450
AMS236B
Typ
Max
20
mV
mV
ppm
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at IR = 1 mA, and TA = +25°C unless otherwise specified.
Parameter
Conditions
Reverse Breakdown Voltage
Reverse Dynamic Impedance
AMS336A
Typ
Max
Min
2.450
Min
2.500
2.550
f = 100Hz
2.400
AMS336B
Typ
Max
2.500
2.600
V
Ω
0.2
1.0
0.2
1.0
0.4
1.4
0.4
1.4
2.6
10
2.6
10
3
12
3
12
6
1.8
6
Reverse Breakdown Voltage
Change with current
400µA ≤IR ≤10mA
Temperature Stability
0°C ≤ TA ≤ 70°C
1.8
Long Term Stability (Note 4)
TA=25°C±0.1°C
T = 1000 Hr
20
Units
20
mV
mV
ppm
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, Tj max is:
AMS236 +125°C
AMS336 +100°C
Thermal Resistance
ϕ JA (junction to ambient)
TO-92
SO-8
170°C/W (0.125” leads)
165°C/W
Note 3: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25°C.
Note 4: Temperature stability for the AMS236/336 family is guaranteed by design. Design limits are guaranteed (but not 100% production tested) over the
specified temperature and supply voltage ranges. These limits are not used to calculate outgoing quality levels. The average temperature coefficient is defined
as the maximum deviation of reference voltage at all measured temperatures between the operating TMAX and TMIN, divided by TMAX - TMIN.
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS236/AMS336
TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Characteristics
Reverse Voltage Change
10
-3
TJ = +25° C
10 -4
10
TJ = +85° C
TJ = -25° C
-5
0.5
1.8
2.2
1.0
1.4
REVERSE VOLTAGE (V)
Response Time
3.5
2.5
3.0
VOLTAGE SWING (V)
10
-2
REVERSE VOLTAGE CHANGE (mV)
REVERSE CURRENT (µA)
10 -1
2.5
2.0
1.5
1.0
0.5
0
2.6
OUTPUT
2.0
2.5k
1.0
INPUT
0
OUTPUT
~
~
~
~
6
INPUT
0
0
2
6
8
4
REVERSE CURRENT (mA)
0
10
2
4
TIME (µs)
6
TYPICAL APPLICATIONS
2.5V Reference
Wide Input Range Reference
2.5V Reference with Minimum
Temperature Coefficient
5V
VIN 3.5 TO 40V
10V
2.5k
2.5k
68
1N914*
2.5V
VOUT = 2.5V
10k†
AMS336
AMS336
AMS336
1N914*
† Adjust to 2.50V
* Any silicon signal diode
Precision Power Regulator with Low Temperature
Coefficient
VIN
AMS1085
IN
OUT
ADJ
Trimmed 2.5V Reference with Temperature Coefficient
Independent of Breakdown Voltage
10V
VOUT
1.2k
5k
1N457
AMS336
R1
375
AMS336
10k*
1N457
10k*
TRIM
R2
2k
OUTPUT
ADJUST
*Does not affect Temperature Coefficient
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
8
AMS336
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
3 LEAD TO-92 PLASTIC PACKAGE (N)
0.180±0.005
(4.572±0.127)
0.060±0.005
(1.524±0.127)
DIA
0.060±0.010
(1.524±0.254)
0.90
(2.286)
NOM
0.180±0.005
(4.572±0.127)
0.140±0.010
(3.556±0.127)
5° NOM
0.500
(12.70)
MIN
0.050
(1.270)
MAX
UNCONTROLLED
LEAD DIMENSIONS
0.015±0.002
(0.381±0.051)
0.016±0.003
(0.406±0.076)
0.050±0.005
(1.270±0.127)
10°
NOM
N (TO-92 ) AMS DRW# 042391
8 LEAD SOIC PLASTIC PACKAGE (S)
0.189-0.197*
(4.801-5.004)
8
7
6
5
0.228-0.244
(5.791-6.197)
0.150-0.157**
(3.810-3.988)
1
2
3
4
0.010-0.020 x 45°
(0.254-0.508)
0.053-0.069
(1.346-1.752)
0.004-0.010
(0.101-0.254)
0.014-0.019
(0.355-0.483)
0.008-0.010
(0.203-0.254)
0.050
(1.270)
TYP
0°-8° TYP
0.016-0.050
(0.406-1.270)
S (SO-8 ) AMS DRW# 042293
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723