MAX6005EUR-T [MAXIM]
Low-Cost, Low-Power, Low-Dropout, SOT23-3 Voltage References; 低成本，低功耗，低压差， SOT23-3封装的电压基准
| 型号： | MAX6005EUR-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-Cost, Low-Power, Low-Dropout, SOT23-3 Voltage References |
| 文件： | 总12页 (文件大小：197K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
13-1395; Rev 1; 4/99
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
1–MAX605
Ge n e ra l De s c rip t io n
Fe a t u re s
The MAX6001–MAX6005 fa mily of SOT23, low-c os t
series voltage references meets the cost advantage of
shunt references and offers the power-saving advantage
of series references, which traditionally cost more. Unlike
conventional shunt-mode (two-terminal) references that
must be biased at the load current and require an exter-
nal resistor, these devices eliminate the need for an
external resistor and offer a supply current that is virtually
independent of the supply voltage.
♦ 1% max Initial Accuracy
♦ 100ppm/°C max Temperature Coefficient
♦ 45µA max Quiescent Supply Current
♦ 0.8µA/V Supply Current Variation with V
IN
♦ ±400µA Output Source and Sink Current
♦ 100mV Dropout at 400µA Load Current
♦ 0.12µV/µA Load Regulation
These micropower, low-dropout, low-cost devices are
ideal for high-volume, cost-sensitive 3V and 5V battery-
operated systems with wide variations in supply voltage
that require very low power dissipation. Additionally,
these devices are internally compensated and do not
require an external compensation capacitor, saving
valuable board area in space-critical applications.
♦ 8µV/V Line Regulation
♦ Stable with C
= 0 to 2.2nF
LOAD
Ap p lic a t io n s
Portable/Battery-Powered Equipment
Notebook Computers
Ord e rin g In fo rm a t io n
PIN-
SOT
PART
TEMP. RANGE
PACKAGE TOP MARK
PDAs, GPSs, and DMMs
Cellular Phones
MAX6001EUR-T -40°C to +85°C 3 SOT23-3
MAX6002EUR-T -40°C to +85°C 3 SOT23-3
MAX6003EUR-T -40°C to +85°C 3 SOT23-3
MAX6004EUR-T -40°C to +85°C 3 SOT23-3
MAX6005EUR-T -40°C to +85°C 3 SOT23-3
FZCW
FZCX
FZDK
FZCY
FZCZ
Pagers
Hard-Disk Drives
S e le c t o r Gu id e
OUTPUT
VOLTAGE (V)
PART
INPUT VOLTAGE (V)
MAX6001
MAX6002
MAX6003
MAX6004
MAX6005
1.250
2.500
3.000
4.096
5.000
2.5 to 12.6
(V
+ 200mV) to 12.6
+ 200mV) to 12.6
+ 200mV) to 12.6
+ 200mV) to 12.6
OUT
Typ ic a l Op e ra t in g Circ u it
(V
OUT
(V
OUT
(V
OUT
+SUPPLY INPUT (SEE SELECTOR GUIDE)
P in Co n fig u ra t io n
IN
OUT
REFERENCE
OUT
TOP VIEW
MAX6001
MAX6002
MAX6003
MAX6004
MAX6005
*
IN
1
2
MAX6001
MAX6002
MAX6003
MAX6004
MAX6005
3
GND
2.2nF MAX*
GND
OUT
SOT23-3
*CAPACITORS ARE OPTIONAL
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to GND
Continuous Power Dissipation (T = +70°C)
A
IN.........................................................................-0.3V to +13.5V
SOT23-3 (derate 4.0mW/°C above +70°C)..................320mW
OUT .............................................................-0.3V to (V + 0.3V)
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
IN
Output Short Circuit to GND or IN (V < 6V) ............Continuous
IN
Output Short Circuit to GND or IN (V ≥ 6V) .....................60sec
IN
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—MAX6001
(V = +5V, I
= 0, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
IN
OUT
A
MIN
PARAMETER
OUTPUT
Output Voltage
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
OUT
T
A
= +25°C
1.237
1.250
20
1.263
100
V
Output Voltage Temperature
Coefficient (Note 2)
TCV
ppm/°C
OUT
1–MAX605
∆V
∆V
/
OUT
Line Regulation
2.5V ≤ V ≤ 12.6V
8
120
µV/V
µV/µA
mA
IN
IN
Sourcing: 0 ≤ I
≤ 400µA
0.12
0.15
4
0.8
1.0
∆V
/
OUT
OUT
Load Regulation
∆I
OUT
Sinking: -400µA ≤ I
Short to GND
Short to IN
≤ 0
OUT
OUT Short-Circuit Current
I
SC
4
Temperature Hysteresis
(Note 3)
130
50
ppm
∆V
time
/
ppm/
1,000hrs
OUT
Long-Term Stability
DYNAMIC
1,000 hours at T = +25°C
A
f = 0.1Hz to 10Hz
f = 10Hz to 10kHz
25
65
µVp-p
Noise Voltage
e
OUT
µV
RMS
∆V
∆V
/
OUT
Ripple Rejection
V
= 5V ±100mV, f = 120Hz
86
30
dB
IN
IN
Turn-On Settling Time
Capacitive-Load Stability Range
INPUT
t
To V
= 0.1% of final value, C = 50pF
OUT
µs
R
OUT
C
(Note 4)
0
2.2
nF
OUT
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current
V
Guaranteed by line-regulation test
2.5
12.6
45
V
IN
I
IN
27
µA
I
/V
IN IN
2.5V ≤ V ≤ 12.6V
0.8
2.6
µA/V
IN
2
_______________________________________________________________________________________
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
1–MAX605
ELECTRICAL CHARACTERISTICS—MAX6002
(V = +5V, I
= 0, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
IN
OUT
A
MIN
PARAMETER
OUTPUT
Output Voltage
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
OUT
T
A
= +25°C
2.475
2.500
20
2.525
100
V
Output Voltage Temperature
Coefficient (Note 2)
TCV
ppm/°C
OUT
∆V
∆V
/
OUT
Line Regulation
Load Regulation
(V
+ 0.2V) ≤ V ≤ 12.6V
15
200
µV/V
µV/µA
mV
OUT
IN
IN
Sourcing: 0 ≤ I
≤ 400µA
0.14
0.18
0.90
1.10
∆V
/
OUT
OUT
∆I
OUT
Sinking: -400µA ≤ I
≤ 0
OUT
Dropout Voltage
(Note 5)
V
-
IN
I
= 400µA
100
200
OUT
V
OUT
Short to GND
Short to IN
4
4
OUT Short-Circuit Current
I
SC
mA
∆V
time
/
Temperature Hysteresis
(Note 3)
OUT
130
50
ppm
∆V
/
ppm/
1,000hrs
OUT
Long-Term Stability
DYNAMIC
1,000 hours at T = +25°C
A
time
f = 0.1Hz to 10Hz
f = 10Hz to 10kHz
60
µVp-p
Noise Voltage
e
OUT
125
µV
RMS
∆V
∆V
/
OUT
Ripple Rejection
V
= 5V ±100mV, f = 120Hz
82
85
dB
IN
IN
Turn-On Settling Time
Capacitive-Load Stability Range
INPUT
t
To V
= 0.1% of final value, C = 50pF
OUT
µs
R
OUT
C
(Note 4)
0
2.2
nF
OUT
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current
V
Guaranteed by line-regulation test
V
OUT
+ 0.2
12.6
45
V
IN
I
IN
27
µA
I
/V
IN IN
(V
+ 0.2V) ≤ V ≤ 12.6V
0.8
2.6
µA/V
OUT
IN
_______________________________________________________________________________________
3
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
ELECTRICAL CHARACTERISTICS—MAX6003
(V = +5V, I
= 0, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
IN
OUT
A
MIN
PARAMETER
OUTPUT
Output Voltage
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
OUT
T
A
= +25°C
2.97
3.00
20
3.03
100
V
Output Voltage Temperature
Coefficient (Note 2)
TCV
ppm/°C
OUT
∆V
∆V
/
OUT
Line Regulation
Load Regulation
(V
+ 0.2V) ≤ V ≤ 12.6V
20
220
µV/V
µV/µA
mV
OUT
IN
IN
Sourcing: 0 ≤ I
≤ 400µA
0.14
0.18
0.90
1.10
∆V
/
OUT
OUT
∆I
OUT
Sinking: -400µA ≤ I
≤ 0
OUT
Dropout Voltage
(Note 5)
V
-
IN
I
= 400µA
100
200
OUT
V
OUT
Short to GND
Short to IN
4
4
OUT Short-Circuit Current
I
SC
mA
∆V
time
/
Temperature Hysteresis
(Note 3)
OUT
1–MAX605
130
50
ppm
∆V
/
ppm/
1,000hrs
OUT
Long-Term Stability
DYNAMIC
1,000 hours at T = +25°C
A
time
f = 0.1Hz to 10Hz
f = 10Hz to 10kHz
75
µVp-p
Noise Voltage
e
OUT
150
µV
RMS
∆V
∆V
/
OUT
Ripple Rejection
V
IN
= 5V ±100mV, f = 120Hz
80
dB
IN
Turn-On Settling Time
Capacitive-Load Stability Range
INPUT
t
To V
= 0.1% of final value, C = 50pF
OUT
100
µs
R
OUT
C
(Note 4)
0
2.2
nF
OUT
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current
V
Guaranteed by line-regulation test
V
OUT
+ 0.2
12.6
45
V
IN
I
IN
27
µA
I
/V
IN IN
(V
+ 0.2V) ≤ V ≤ 12.6V
0.8
2.6
µA/V
OUT
IN
4
_______________________________________________________________________________________
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
1–MAX605
ELECTRICAL CHARACTERISTICS—MAX6004
(V = +5V, I
= 0, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
IN
OUT
A
MIN
PARAMETER
OUTPUT
Output Voltage
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
OUT
T
A
= +25°C
4.055
4.096
20
4.137
100
V
Output Voltage Temperature
Coefficient (Note 2)
TCV
ppm/°C
OUT
∆V
∆V
/
OUT
Line Regulation
Load Regulation
(V
+ 0.2V) ≤ V ≤ 12.6V
25
240
µV/V
µV/µA
mV
OUT
IN
IN
Sourcing: 0 ≤ I
≤ 400µA
0.15
0.20
1.00
1.20
∆V
/
OUT
OUT
∆I
OUT
Sinking: -400µA ≤ I
≤ 0
OUT
Dropout Voltage
(Note 5)
V
-
IN
I
= 400µA
100
200
OUT
V
OUT
Short to GND
Short to IN
4
4
OUT Short-Circuit Current
I
SC
mA
∆V
time
/
Temperature Hysteresis
(Note 3)
OUT
1,000 hours at T = +25°C
130
50
ppm
A
∆V
/
ppm/
1,000hrs
OUT
Long-Term Stability
DYNAMIC
1,000 hours at T = +25°C
A
time
f = 0.1Hz to 10Hz
f = 10Hz to 10kHz
100
200
µVp-p
Noise Voltage
e
OUT
µV
RMS
∆V
∆V
/
OUT
Ripple Rejection
V
IN
= 5V ±100mV, f = 120Hz
77
dB
IN
Turn-On Settling Time
Capacitive-Load Stability Range
INPUT
t
To V
= 0.1% of final value, C = 50pF
OUT
160
µs
R
OUT
C
(Note 4)
0
2.2
nF
OUT
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current
V
Guaranteed by line-regulation test
V
OUT
+ 0.2
12.6
45
V
IN
I
IN
27
µA
I
/V
IN IN
(V
+ 0.2V) ≤ V ≤ 12.6V
0.8
2.6
µA/V
OUT
IN
_______________________________________________________________________________________
5
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
ELECTRICAL CHARACTERISTICS—MAX6005
(V = +5.5V, I
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
IN
OUT
A
MIN
MAX
A
PARAMETER
OUTPUT
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output Voltage
V
T
A
= +25°C
4.950
5.000
20
5.050
100
V
OUT
Output Voltage Temperature
Coefficient (Note 2)
TCV
ppm/°C
OUT
∆V
∆VIN
/
OUT
Line Regulation
Load Regulation
(V
+ 0.2V) ≤ V ≤ 12.6V
25
240
µV/V
µV/µA
mV
OUT
IN
Sourcing: 0 ≤ I
≤ 400µA
0.17
0.24
1.00
1.20
∆V
/
OUT
OUT
∆I
OUT
Sinking: -400µA ≤ I
≤ 0
OUT
Dropout Voltage
(Note 5)
V
-
IN
I
= 400µA
100
200
OUT
V
OUT
Short to GND
Short to IN
4
4
OUT Short-Circuit Current
I
SC
mA
1–MAX605
Temperature Hysteresis
(Note 3)
130
50
ppm
∆V
time
/
ppm/
1,000hrs
OUT
Long-Term Stability
DYNAMIC
1,000 hours at T = +25°C
A
f = 0.1Hz to 10Hz
f =10Hz to 10kHz
120
240
µVp-p
Noise Voltage
e
OUT
µV
RMS
∆V
∆V
/
OUT
Ripple Rejection
V
IN
= 5V ±100mV, f = 120Hz
72
dB
IN
Turn-On Settling Time
t
R
To V
= 0.1% of final value, C = 50pF
OUT
220
µs
OUT
Capacitive-Load Stability Range
INPUT
C
(Note 4)
0
2.2
nF
OUT
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current
V
Guaranteed by line-regulation test
V
OUT
+ 0.2
12.6
45
V
IN
I
IN
27
µA
I
/V
IN IN
(V
+ 0.2V) ≤ V ≤ 12.6V
0.8
2.6
µA/V
OUT
IN
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: Temperature coefficient is measured by the “box” method; i.e., the maximum ∆V
is divided by the maximum ∆t.
OUT
Note 3: Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from T
Note 4: Not production tested. Guaranteed by design.
to T
.
MIN
MAX
Note 5: Dropout voltage is the minimum input voltage at which V
changes ≤ 0.2% from V at V = 5.0V (V = 5.5V for MAX6005).
OUT IN IN
OUT
6
_______________________________________________________________________________________
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
1–MAX605
Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
= 0; T = +25°C; unless otherwise noted.) (Note 6)
A
(V = +5V for MAX6001–MAX6004, V = +5.5V for MAX6005; I
IN
IN
OUT
MAX6005
MAX6001
MAX6005
LONG-TERM DRIFT
OUTPUT VOLTAGE
TEMPERATURE DRIFT
OUTPUT VOLTAGE
TEMPERATURE DRIFT
1.2520
1.2500
1.2480
1.2460
1.2440
1.2420
1.2400
5.002
5.000
4.998
4.996
4.994
4.992
4.990
4.988
4.986
5.003
5.002
THREE
TYPICAL PARTS
5.001
5.000
4.999
4.998
4.997
4.996
4.995
4.994
4.993
THREE
TYPICAL PARTS
THREE
TYPICAL PARTS
-40 -20
0
20
40
60
80 100
0
100 200 300 400 500 600 700 800 9001,000
TIME (HOURS)
-40 -20
0
20
40
60
80 100
TEMPERATURE DRIFT (°C)
TEMPERATURE DRIFT (°C)
MAX6002/MAX6003
DROPOUT VOLTAGE vs.
SOURCE CURRENT
MAX6005
LINE REGULATION
MAX6001
LINE REGULATION
800
600
400
200
0
400
300
200
100
0
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
T = +85°C
A
T = -40°C
A
T = +85°C
A
T = -40°C
A
T = -40°C
A
T = +85°C
A
T = +25°C
A
T = +25°C
A
T = +25°C
A
-200
-100
5
7
9
11
13
2
4
6
8
10
12
14
0
200
400
600
800
1,000
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
SOURCE CURRENT (µA)
MAX6004/MAX6005
DROPOUT VOLTAGE vs.
SOURCE CURRENT
MAX6005
LOAD REGULATION
MAX6001
LOAD REGULATION
0.400
0.200
0
0.4
0.2
0
0.30
0.25
0.20
0.15
0.10
0.05
0
T = -40°C
A
T = +85°C
A
T = -40°C
A
T = -40°C
A
T = +85°C
A
T = +25°C
A
T = +25°C
A
T = +25°C
A
-0.200
-0.400
-0.2
-0.4
T = +85°C
A
-500 -375 -250 -125
0
125 250 375 500
0
200
400
600
800
1,000
-500 -375 -250 -125
0
125 250 375 500
LOAD CURRENT (µA)
SOURCE CURRENT (µA)
LOAD CURRENT (µA)
_______________________________________________________________________________________
7
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V = +5V for MAX6001–MAX6004, V = +5.5V for MAX6005; I
= 0; T = +25°C; unless otherwise noted.) (Note 6)
A
IN
IN
OUT
MAX6001
POWER-SUPPLY REJECTION
vs. FREQUENCY
MAX6005
POWER-SUPPLY REJECTION
vs. FREQUENCY
SUPPLY CURRENT
vs. INPUT VOLTAGE
40
38
36
34
32
30
28
26
24
22
20
100
10
1
100
10
1
VALID OVER SPECIFIED
(MIN) TO V (MAX)
FOR EACH PART
V
CC
= 5.5V ±0.25V
V
IN
IN
0.1
0.1
0.01
0.01
2
4
6
8
10
12
14
100
1k
10k
100k
1M
10M
10
100
1k
10k 100k 1M 10M
1–MAX605
INPUT VOLTAGE (V)
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX6005
OUTPUT IMPEDANCE
vs. FREQUENCY
MAX6001
OUTPUT IMPEDANCE
vs. FREQUENCY
SUPPLY CURRENT
vs. TEMPERATURE
40
35
30
25
20
1k
1k
100
10
1
100
10
1
V
= 12.5V
= 7.5V
IN
V
IN
V
IN
= 5.5V
V
= 2.5V (MAX6001 ONLY)
IN
0.1
0.1
-40 -20
0
20
40
60
80 100
0.01 0.1
1
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
0.01 0.1
1
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
TEMPERATURE (°C)
MAX6001
MAX6005
MAX6001
0.1Hz TO 10Hz OUTPUT NOISE
0.1Hz TO 10Hz OUTPUT NOISE
TURN-ON TRANSIENT
V
IN
1V/div
V
OUT
V
OUT
10µV/div
20µV/div
V
OUT
1V/div
1sec/div
1sec/div
10µs/div
8
_______________________________________________________________________________________
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
1–MAX605
Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V = +5V for MAX6001–MAX6004, V = +5.5V for MAX6005; I
= 0; T = +25°C; unless otherwise noted.) (Note 6)
A
IN
IN
OUT
MAX6005
MAX6001
MAX6005
LOAD-TRANSIENT RESPONSE
LOAD-TRANSIENT RESPONSE
TURN-ON TRANSIENT
MAX6001-19
+25µA
-25µA
I
OUT
V
2V/div
50µA/div
I
IN
OUT
40µA/div
V
OUT
V
V
OUT
2V/div
OUT
50mV/div
20mV/div
20µs/div
10µs/div
10µs/div
V
IN
= 5.5V, I = ±25µA, AC-COUPLED
I
= ±25µA, AC-COUPLED
OUT
OUT
MAX6005
LOAD-TRANSIENT RESPONSE
MAX6001
LINE-TRANSIENT RESPONSE
MAX6001
LOAD-TRANSIENT RESPONSE
MAX6001-22
+500µA
-500µA
I
OUT
I
V
OUT
IN
500µA/div
1mA/div
200mV/div
V
OUT
200mV/div
V
OUT
V
OUT
0.2V/div
100mV/div
20µs/div
2.5µs/div
10µs/div
V
IN
= 5.5V, I = ±500µA, AC-COUPLED
V
IN
= 5V ±0.25V, AC-COUPLED
OUT
I
= ±500µA, AC-COUPLED
OUT
MAX6005
LINE-TRANSIENT RESPONSE
V
IN
200mV/div
V
OUT
100mV/div
Note 6: Many of the Typical Operating Characteristics of the MAX6001 family are
extremely similar. The extremes of these characteristics are found in the
MAX6001 (1.2V output) and MAX6005 (5.0V output) devices. The Typical
Operating Characteristics of the remainder of the MAX6001 family typically
lie between these two extremes and can be estimated based on their output
voltage.
2µs/div
V
IN
= 5.5V ±0.25V, AC-COUPLED
_______________________________________________________________________________________
9
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
S u p p ly Cu rre n t
P in De s c rip t io n
The quiescent supply current of these series-mode ref-
erences is a maximum of 45µA and is virtually indepen-
dent of the supply voltage, with only a 0.8µA/V variation
with supply voltage. Unlike shunt-mode references, the
load current of these series-mode references is drawn
from the supply voltage only when required, so supply
current is not wasted and efficiency is maximized over
the entire supply voltage range. This improved efficien-
cy can help reduce power dissipation and extend bat-
tery life.
PIN
1
NAME
IN
FUNCTION
Supply Voltage Input
Reference Voltage Output
Ground
2
OUT
GND
3
De t a ile d De s c rip t io n
The MAX6001–MAX6005 bandgap references offer a
temperature coefficient of <100ppm/°C and initial accura-
cy of better than 1%. These devices can sink and source
up to 400µA with <200mV of dropout voltage, making
them attractive for use in low-voltage applications.
When the supply voltage is below the minimum speci-
fied input voltage (as during turn-on), the devices can
draw up to 200µA beyond the nominal supply current.
The input voltage source must be capable of providing
this current to ensure reliable turn-on.
Ap p lic a t io n s In fo rm a t io n
Ou t p u t Vo lt a g e Hys t e re s is
Output voltage hysteresis is the change in the output
Ou t p u t /Lo a d Ca p a c it a n c e
Devices in this family do not require an output capaci-
tance for frequency stability. They are stable for capac-
itive loads from 0 to 2.2nF. However, in applications
whe re the loa d or the s up p ly c a n e xp e rie nc e s te p
changes, an output capacitor will reduce the amount of
overshoot (or undershoot) and assist the circuit’s tran-
s ie nt re s p ons e . Ma ny a p p lic a tions d o not ne e d a n
external capacitor, and this family can offer a signifi-
c a nt a d va nta g e in the s e a p p lic a tions whe n b oa rd
space is critical.
1–MAX605
voltage at T = +25°C before and after the device is
A
cycled over its entire operating temperature range.
Hysteresis is caused by differential package stress
appearing across the bandgap core transistors. The
typical temperature hysteresis value is 130ppm.
V
S
+2V
S
V+
V-
V
CC
IN
+REF OUTPUT
OUT
MAX681
GND
MAX6001
MAX6002
MAX6003
MAX6004
MAX6005
1M, 0.1%
V+
OUTPUT
GND
ICL7652
V-
1M, 0.1%
10nF
-2V
S
-REF OUTPUT
Figure 1. Positive and Negative References from Single +3V or +5V Supply
10 ______________________________________________________________________________________
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
1–MAX605
Tu rn -On Tim e
These devices typically turn on and settle to within
0.1% of their final value in 30µs to 220µs depending on
the device. The turn-on time can increase up to 1.5ms
with the device operating at the minimum dropout volt-
age and the maximum load.
Ch ip In fo rm a t io n
TRANSISTOR COUNT: 70
P o s it ive a n d Ne g a t ive
Lo w -P o w e r Vo lt a g e Re fe re n c e
Figure 1 shows a typical method for developing a bipo-
lar reference. The circuit uses a MAX681 voltage dou-
b le r/inve rte r c ha rg e -p ump c onve rte r to p owe r a n
ICL7652, thus creating a positive as well as a negative
reference voltage.
______________________________________________________________________________________ 11
Lo w -Co s t , Lo w -P o w e r, Lo w -Dro p o u t ,
S OT2 3 -3 Vo lt a g e Re fe re n c e s
P a c k a g e In fo rm a t io n
1–MAX605
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.
12 ____________________Ma x im In t e g ra t e d P ro d u c t s , 1 2 0 S a n Ga b rie l Drive , S u n n yva le , CA 9 4 0 8 6 4 0 8 -7 3 7 -7 6 0 0
© 1999 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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