MAX6009BEUR+ [MAXIM]
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19-1730; Rev 0; 8/00
1µA SOT23 Precision Shunt
Voltage Reference
General Description
Features
o Ultra-Low Operating Current: Guaranteed <1µA
o Small 3-Pin SOT23 Package
The MAX6006–MAX6009 ultra-low-power shunt refer-
ences are ideal for space-critical and low-power appli-
cations. They are offered in 3-pin SOT23 packages,
and the minimum operating current is guaranteed to be
<1µA. The devices feature low temperature coefficients
of <30ppm/°C and initial accuracy of better than 0.2%.
o Initial Voltage Accuracy: 0.2%
o Temperature Coefficient: 30ppm/°C max
o Temperature Range: -40°C to +85°C
Available in +1.25V, +2.048V, +2.5V, and 3V output
voltages, the MAX6006–MAX6009 have references of
+1.25V, +2.048V, +2.5V, and +3.0V, respectively. The
devices can be used as lower-power, higher-precision
upgrades to the ICL8069, LM385, LT1004, and LM4040
references. The MAX6006–MAX6009 are available in
two grades: A and B. The A grade features a tempera-
ture coefficient of 30ppm/°C over the extended temper-
ature range of -40°C to +85°C, with an initial accuracy
of 0.2%. Grade B features a temperature coefficient of
75ppm/°C with an initial accuracy of 0.5%. MAX6006
in+1.25V and MAX6008 in +2.5V are offered in 8-pin
SOIC packages, as plug in upgrades for LT1004 and
LM285.
o Factory-Trimmed Output Voltages: +1.25V,
+2.048V, +2.5V, +3.0V
o Wide Operating Range: 1µA to 2mA
Selector Guide
OUTPUT
VOLTAGE ACCURACY
INITIAL
TEMPERATURE
COEFFICIENT
(ppm/°C)
PART
(V)
1.25
1.25
2.048
2.048
2.5
(%)
0.2
0.5
0.2
0.5
0.2
0.5
0.2
0.5
MAX6006A
MAX6006B
MAX6007A
MAX6007B
MAX6008A
MAX6008B
MAX6009A
MAX6009B
30
75
30
75
30
75
30
75
________________________Applications
Battery-Powered Equipment
Portable Meters
Precision Regulators
A/D and D/A Converters
2.5
3.0
3.0
Ordering Information appears at end of data sheet
Typical Operating Circuit
Pin Configuration
V
S
MAX6006
MAX6007
MAX6008
MAX6009
TOP VIEW
I
+ I
L
RMIN
R
BIAS
I
L
V
R
V
OUT
OUT
GND
1
2
N.C.
N.C.
N.C.
GND
1
2
3
4
8
7
6
5
OUT
N.C.
OUT
N.C.
I
RMIN
MAX6006
MAX6007
MAX6008
MAX6009
3
I.C.
0.01µF
V
S
- V
R
SOT23-3
R
BIAS
=
I + I
L
RMIN
SO
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1µA SOT23 Precision Shunt
Voltage Reference
ABSOLUTE MAXIMUM RATINGS
Operating Current (OUT to GND) ......................................20mA
Forward Current (GND to OUT) ..........................................20mA
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Continuous Power Dissipation (T = +70°C)
A
3-Pin SOT23 (derate 4mW/°C above +70°C)..............320mW
8-Pin SO (derate 5.48mW/°C above +70°C)...............471mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—MAX6006
(T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
MAX6006A (0.2%)
MAX6006B (0.5%)
1.2475 1.2500 1.2525
1.2438 1.2500 1.2563
T
= +25 C,
= 1.2µA
A
Reverse Breakdown Voltage
V
R
I
R
Minimum Operating Current
I
V
change <0.2% from V at I = 1.2µA
0.5
1.0
1.0
2.0
1.5
µA
RMIN
R
R
R
I
R
I
R
I
R
I
R
= 1.2µA to 200µA
Reverse Breakdown Change
with Current
mV
= 200µA to 2mA
Reverse Dynamic Impedance
Low-Frequency Noise
= 1.2µA to 2mA (Note 2)
= 1.2µA, f = 0.1Hz to 10Hz
30
V
p-p
MAX6006A
MAX6006B
30
75
Temperature Coefficient
(Note 3)
TC
I
= 1.2µA
ppm/ C
R
Long-Term Drift
1000h at T = +25 C
150
200
ppm
ppm
A
Thermal Hysteresis (Note 4)
2
_______________________________________________________________________________________
1µA SOT23 Precision Shunt
Voltage Reference
ELECTRICAL CHARACTERISTICS—MAX6007
(T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
MAX6007A (0.2%)
MAX6007B (0.5%)
2.0439 2.048 2.0521
2.0378 2.048 2.0582
T
I
= +25 C,
= 1.2µA
A
Reverse Breakdown Voltage
V
R
R
Minimum Operating Current
I
V
change <0.2% from V at I = 1.2µA
0.5
1.0
1.3
2.3
1.8
µA
RMIN
R
R
R
I
R
I
R
I
R
I
R
= 1.2µA to 200µA
Reverse Breakdown Change
with Current
mV
= 200µA to 2mA
Reverse Dynamic Impedance
Low-Frequency Noise
= 1.2µA to 2mA (Note 2)
= 1.2µA, f = 0.1Hz to 10Hz
50
V
p-p
MAX6007A
MAX6007B
30
75
Temperature Coefficient
(Note 3)
TC
I
= 1.2µA
ppm/ C
R
Long-Term Drift
1000h at T = +25 C
150
200
ppm
ppm
A
Thermal Hysteresis (Note 4)
ELECTRICAL CHARACTERISTICS—MAX6008
(T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
MAX6008A (0.2%)
MAX6008B (0.5%)
2.4950 2.5000 2.5050
2.4875 2.5000 2.5125
T
I
= +25 C,
= 1.2µA
A
Reverse Breakdown Voltage
V
R
R
Minimum Operating Current
I
V
I
change <0.2% from V at I = 1.2µA
0.5
1.0
1.5
2.5
2
µA
RMIN
R
R
R
= 1.2µA to 200µA
Reverse Breakdown Change with
Current
R
mV
I
I
I
= 200µA to 2mA
R
R
R
Reverse Dynamic Impedance
Low-Frequency Noise
= 1.2µA to 2mA (Note 2)
= 1.2µA, f = 0.1Hz to 10Hz
60
V
p-p
MAX6008A
MAX6008B
30
75
Temperature Coefficient
(Note 3)
TC
I
= 1.2µA
ppm/ C
R
Long-Term Drift
1000h at T = +25°C
150
200
ppm
ppm
A
Thermal Hysteresis (Note 4)
_______________________________________________________________________________________
3
1µA SOT23 Precision Shunt
Voltage Reference
ELECTRICAL CHARACTERISTICS—MAX6009
(T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
MAX6009A (0.2%)
MAX6009B (0.5%)
2.9940 3.000 3.0060
2.9850 3.000 3.0150
T
= +25°C,
= 1.2µA
A
Reverse Breakdown Voltage
V
R
I
R
Minimum Operating Current
I
V
change <0.2% from V at I = 1.2µA
0.5
1.0
1.7
2.7
2.2
µA
RMIN
R
R
R
I
R
I
R
I
R
I
R
= 1.2µA to 200µA
Reverse Breakdown Change
with Current
mV
= 200µA to 2mA
Reverse Dynamic Impedance
Low-Frequency Noise
= 1.2µA to 2mA (Note 2)
= 1.2µA, f = 0.1Hz to 10Hz
75
V
p-p
MAX6009A
MAX6009B
30
75
Temperature Coefficient
(Note 3)
TC
I
= 1.2µA
ppm/ C
R
Long-Term Drift
1000h at T = +25°C
150
200
ppm
ppm
A
Thermal Hysteresis (Note 4)
Note 1: All devices are 100% production tested at T = +25°C and are guaranteed by design for T = T
to T
, as specified.
MAX
A
A
MIN
Note 2: This parameter is guaranteed by the “reverse breakdown change with current” test.
Note 3: TC is measured by the “box” method; i.e., (V
- V
) / (T
- T
MIN
).
MAX
MIN
MAX
Note 4: Thermal hysteresis is defined as the change in the +25°C output voltage after cycling the device from T
to T
.
MAX
MIN
Typical Operating Characteristics
(C = 0.01µF, T = +25°C, unless otherwise noted.)
L
A
MAX6006
MAX6006
STARTUP
TEMPERATURE DRIFT
V
vs. CURRENT
OUT
0.5
0
2.5
2.0
1.5
1.0
0.5
0
I
= 1.2µA
OUT
R
V
= 2.5V
1.5V
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
0
T
A
= +85 C
0.01
1.2 A
T
A
= -40 C
T
= +25 C
A
-50
0
50
100
0.001
0.1
1
10
20ms/div
TEMPERATURE (°C)
REVERSE CURRENT (mA)
4
_______________________________________________________________________________________
1µA SOT23 Precision Shunt
Voltage Reference
Typical Operating Characteristics (continued)
(C = 0.01µF, T = +25°C, unless otherwise noted.)
L
A
MAX6006
0.01Hz TO 10Hz NOISE
MAX6006
OUTPUT IMPEDANCE vs. FREQUENCY
MAX6009
vs. CURRENT
V
OUT
1000
2.5
2.0
1.5
1.0
0.5
0
I
= 6 A,
R
I
R
= 1.2 A
100
10
1.2 A
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
1
TIME (2s/div)
1
10
0.01
0.1
100
1000
0.001
0.01
0.1
1
10
FREQUENCY (kHz)
REVERSE CURRENT (mA)
MAX6009
0.01Hz TO 10Hz NOISE
MAX6009
OUTPUT IMPEDANCE vs. FREQUENCY
MAX6009
STARTUP
1000
I
R
= 6µA,
R
3V
0
I = 1.2µA
100
10
1.2µA
1
20ms/div
1
TIME (2s/div)
0.01
0.1
10
100
1000
FREQUENCY (kHz)
_______________________________________________________________________________________
5
1µA SOT23 Precision Shunt
Voltage Reference
Pin Description
PIN
NAME
FUNCTION
SOT23
SO
Output Voltage. Bias OUT with a pullup resistor to a potential greater than OUT. Bypass OUT
to GND with a 0.01 F or larger capacitor.
1
6, 8
OUT
GND
IC
Ground
2
3
4
—
Internally connected test point. Leave this pin unconnected, or connect to GND.
No connection. Not internally connected.
—
1, 2, 3, 5,
7
N.C.
Detailed Description
Typical Applications
The MAX6006–MAX6009 are precision, two-terminal,
series bandgap voltage references. On-chip thin-film
resistors are laser trimmed to provide 0.2% output volt-
age accuracies. Voltages of +1.25V, +2.048V,+2.5V,
and +3.0V are available in the space-saving SOT23
In the typical shunt regulator application shown in
Figure 1, R
is used to set the current through the
BIAS
load (I ) and the current through the shunt regulator
L
(I
RMIN
). There are two worst-case situations that R
BIAS
needs to be sized for:
✕
package (2.1mm 2.7mm).
1) R must be small enough that when V (supply
BIAS
S
voltage) is at its minimum and I is at its maximum,
L
Applications Information
I
is equal to at least the minimum operating
RMIN
current of the shunt regulator.
Output/Load Capacitance
For devices in this family, OUT needs to be bypassed
to GND with a 0.01µF or larger capacitor. In applica-
tions where the load or the supply can experience step
changes, additional capacitance will reduce the
amount of overshoot (or undershoot) and assist the cir-
cuit’s transient response.
2) R must be large enough that when V is at its
BIAS
S
maximum and I is at its minimum, I
is <2mA.
L
RMIN
V
S
Output Voltage Hysteresis
I
+ I
L
RMIN
R
BIAS
Output voltage hysteresis is the change in the output
voltage at T = +25°C before and after the device is
A
I
L
cycled over its entire operating temperature range.
Hysteresis is caused by differential package stress
appearing across the bandgap core transistors. The
temperature hysteresis value is typically less than
200ppm.
V
V
OUT
R
I
RMIN
MAX6006
MAX6007
MAX6008
MAX6009
Turn-On Time
The output capacitance and bias current of the
MAX6006–MAX6009 greatly affects turn-on settling
time. In the Typical Operating Characteristics, turn-on
time is shown with a 10nF output capacitor and a 1.2µA
bias current. Under these conditions, the MAX6006–
MAX6009 settle in 40ms. Settling time will linearly
decrease in proportion to the circuit’s bias current.
V - V
S
R
R
BIAS
=
I + I
L
RMIN
Figure 1. Typical Application Circuit
6
_______________________________________________________________________________________
1µA SOT23 Precision Shunt
Voltage Reference
+10V
MAX6008
MAX6008
R1
200k
R1
200k
4
3
4
3
5
5
1
1
MAX4162EUK
2
MAX4162EUK
2
I
I
OUT
OUT
R2
R2
-1.0V TO -7V
+1.0V TO +7V
2.5V
R2
I
=
OUT
-10V
Figure 2. Precision 1µA to 1mA Current Sources
Ordering Information
Chip Information
TRANSISTOR COUNT: 60
PROCESS: BiCMOS
TEMP.
PIN-
TOP
PART
RANGE
PACKAGE
MARK
MAX6006AEUR-T
MAX6006AESA
MAX6006BEUR-T
MAX6006BESA
MAX6007AEUR-T
MAX6007BEUR-T
MAX6008AEUR-T
MAX6008AESA
MAX6008BEUR-T
MAX6008BESA
MAX6009AEUR-T
MAX6009BEUR-T
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
3 SOT23
8 SO
FZGH
—
3 SOT23
8 SO
FZGI
—
3 SOT23
3 SOT23
3 SOT23
8 SO
FZGK
FZGL
FZGN
—
3 SOT23
8 SO
FZGO
—
3 SOT23
3 SOT23
FZGQ
FZGR
_______________________________________________________________________________________
7
1µA SOT23 Precision Shunt
Voltage Reference
Package Information
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2000 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
相关型号：
MAX6009BEUR-T
Two Terminal Voltage Reference, 1 Output, 3V, Trim/Adjustable, BICMOS, PDSO3, 2.10 X 2.70 MM, SOT-23, 3 PIN
MAXIM
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