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MAX6012
Technical data
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MAXIM MAX6012, MAX6021, MAX6025, MAX6030, MAX6041 Technical data

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General Description
The MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/ MAX6045/MAX6050 precision, low-dropout, micropower voltage references are available in miniature SOT23-3 surface-mount packages. They feature a proprietary curvature-correction circuit and laser-trimmed thin-film resistors that result in a low temperature coefficient of <15ppm/°C and initial accuracy of better than 0.2%. These devices are specified over the extended temper­ature range.
These series-mode voltage references draw only 27µA of quiescent supply current and can sink or source up to 500µA of load current. Unlike conventional shunt­mode (two-terminal) references that waste supply cur­rent and require an external resistor, devices in the MAX6012 family offer a supply current that’s virtually independent of supply voltage (with only a 0.8µA/V vari­ation with supply voltage) and do not require an external resistor. Additionally, these internally compensated devices do not require an external compensation capacitor and are stable with up to 2.2nF of load capac­itance. Eliminating the external compensation capacitor saves valuable board area in space-critical applications. Their low dropout voltage and supply-independent, ultra-low supply current make these devices ideal for battery-operated, low-voltage systems.
Applications
Hand-Held Equipment
Data Acquisition Systems
Industrial and Process-Control Systems
Battery-Operated Equipment
Hard-Disk Drives
Features
♦ 0.2% (max) Initial Accuracy
♦ 15ppm/°C (max) Temperature Coefficient
♦ 35µA (max) Quiescent Supply Current
♦ 0.8µA/V Supply Current Variation with V
IN
♦ ±500µA Output Source and Sink Current
♦ 100mV Dropout at 500µA Load Current
♦ 0.12µV/µA Load Regulation
♦ 8µV/V Line Regulation
♦ Stable with C
LOAD
= 0 to 2.2nF
MAX6012/6021/6025/6030/6041/6045/6050
Precision, Low-Power, Low-Dropout,
SOT23-3 Voltage References
________________________________________________________________ Maxim Integrated Products 1
Typical Operating Circuit
19-4777; Rev 3; 4/01
PART
MAX6012AEUR-T
MAX6012BEUR-T
MAX6021AEUR-T
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-
PACKAGE
3 SOT23-3
3 SOT23-3
3 SOT23-3
Ordering Information
TOP
MARK
FZAP
FZDA
FZAU
MAX6021BEUR-T
MAX6025AEUR-T
MAX6025BEUR-T -40°C to +85°C
-40°C to +85°C
-40°C to +85°C 3 SOT23-3
3 SOT23-3
3 SOT23-3
FZDF
FZAQ
FZDB
MAX6041AEUR-T
MAX6041BEUR-T -40°C to +85°C
-40°C to +85°C 3 SOT23-3
3 SOT23-3
FZAR
FZDC
Pin Configuration appears at end of data sheet.
(V
OUT
+ 200mV) to 12.65.000MAX6050
(V
OUT
+ 200mV) to 12.64.500
(V
OUT
+ 200mV) to 12.64.096MAX6041
MAX6045
(V
OUT
+ 200mV) to 12.62.500MAX6025
2.5 to 12.62.048
2.5 to 12.61.247MAX6012
MAX6021
INPUT VOLTAGE (V)
OUTPUT
VOLTAGE (V)
PART
Selector Guide
MAX6045AEUR-T
-40°C to +85°C 3 SOT23-3 FZAS MAX6045BEUR-T -40°C to +85°C 3 SOT23-3 FZDD MAX6050AEUR-T
-40°C to +85°C 3 SOT23-3 FZAT MAX6050BEUR-T -40°C to +85°C 3 SOT23-3 FZDE
MAX6030AEUR-T
-40°C to +85°C 3 SOT23-3 FZDW MAX6030BEUR-T -40°C to +85°C 3 SOT23-3 FZDX
(V
OUT
+ 200mV) to 12.63.000MAX6030
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
+SUPPLY INPUT (SEE SELECTOR GUIDE)
IN
OUT REFERENCE
MAX6012
*
MAX6021 MAX6025 MAX6030 MAX6041 MAX6045 MAX6050
GND
2.2nF MAX*
*CAPACITORS ARE OPTIONAL
OUT
TA= 0°C to +70°C
MAX6012/6021/6025/6030/6041/6045/6050
Precision, Low-Power, Low-Dropout, SOT23-3 Voltage References
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX6012
(VIN= +5V, I
OUT
= 0, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
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.
(Voltages Referenced to GND)
IN .........................................................................-0.3V to +13.5V
OUT .............................................................-0.3V to (VIN+ 0.3V)
Output Short Circuit to GND or IN (VIN< 6V) ............Continuous
Output Short Circuit to GND or IN (V
IN
≥ 6V) .........................60s
Continuous Power Dissipation (T
A
= +70°C)
3-Pin SOT23-3 (derate 4.0mW/°C above +70°C) ........320mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
2.5V ≤ VIN≤ 12.6V
Guaranteed by line-regulation test
TA= +25°C
Note 4
To V
OUT
= 0.1% of final value, C
OUT
= 50pF
VIN= 5V ±100mV, f = 120Hz
Short to IN
f = 10Hz to 10kHz
f = 0.1Hz to 10Hz
Short to GND
Sinking: -500µA ≤ I
OUT
≤ 0
TA= 0°C to +70°C
TA= 0°C to +70°C
2.5V ≤ VIN≤ 12.6V
Sourcing: 0 ≤ I
OUT
≤ 500µA
1000hr at TA= +25°C
CONDITIONS
µA/V0.8 2.0IIN/V
IN
Change in Supply Current
µA27 35I
IN
Quiescent Supply Current
V2.5 12.6V
IN
Supply Voltage Range
nF0 2.2C
OUT
Capacitive-Load Stability Range
µs30t
R
Turn-On Settling Time
dB86
∆V
OUT
/
∆V
IN
Ripple Rejection
µV
RMS
65
µVp-p12
e
OUT
Noise Voltage
ppm/
1000hr
50
∆V
OUT
/
time
Long-Term Stability
1.241 1.247 1.253
V1.243 1.247 1.251
V
OUT
Output Voltage
ppm130
Temperature Hysteresis (Note 3)
4
mA
4
I
SC
OUT Short-Circuit Current
0.15 0.60
615
625
µV/V880
∆V
OUT
/
∆V
IN
Line Regulation
0.12 0.50
UNITSMIN TYP MAXSYMBOLPARAMETER
MAX6012A
MAX6012B
ppm/°C
V
OUT
Output Voltage Temperature Coefficient (Note 2)
∆V
OUT
/
∆I
OUT
Load Regulation µV/µA
-0.32 0.32
-0.48 0.48
TA= -40°C to +85°C
TA= -40°C to +85°C
MAX6012A
MAX6012B
620
630
%
V
%
OUTPUT
DYNAMIC
INPUT
MAX6012/6021/6025/6030/6041/6045/6050
Precision, Low-Power, Low-Dropout,
SOT23-3 Voltage References
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—MAX6021
(VIN= +5V, I
OUT
= 0, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
2.5V ≤ VIN≤ 12.6V
Guaranteed by line-regulation test
TA= +25°C
Note 4
To V
OUT
= 0.1% of final value, C
OUT
= 50pF
VIN= 5V ±100mV, f = 120Hz
Short to IN
f = 10Hz to 10kHz
f = 0.1Hz to 10Hz
Short to GND
Sinking: -500µA ≤ I
OUT
≤ 0
TA= 0°C to +70°C
TA= 0°C to +70°C
2.5V ≤ VIN≤ 12.6V
Sourcing: 0 ≤ I
OUT
≤ 500µA
1000hr at TA= +25°C
CONDITIONS
µA/V0.8 2.0IIN/V
IN
Change in Supply Current
µA27 35I
IN
Quiescent Supply Current
V2.5 12.6V
IN
Supply Voltage Range
nF02.2C
OUT
Capacitive-Load Stability Range
µs70t
R
Turn-On Settling Time
dB84
∆V
OUT
/
∆V
IN
Ripple Rejection
µV
RMS
105
µVp-p35
e
OUT
Noise Voltage
ppm/
1000hr
50
∆V
OUT
/
time
Long-Term Stability
2.040 2.048 2.056
V2.043 2.048 2.053
V
OUT
Output Voltage
ppm130
Temperature Hysteresis (Note 3)
4
mA
4
I
SC
OUT Short-Circuit Current
0.18 0.70
615
625
µV/V10 100
∆V
OUT
/
∆V
IN
Line Regulation
0.12 0.55
UNITSMIN TYP MAXSYMBOLPARAMETER
MAX6021A
MAX6021B
V
OUT
Output Voltage Temperature Coefficient (Note 2)
ppm/°C
∆V
OUT
/
∆I
OUT
Load Regulation µV/µA
MAX6021A
MAX6021B
-0.24 0.24
-0.39 0.39
TA= -40°C to +85°C
TA= -40°C to +85°C
620
630
V
%
%
OUTPUT
DYNAMIC
INPUT
MAX6012/6021/6025/6030/6041/6045/6050
Precision, Low-Power, Low-Dropout, SOT23-3 Voltage References
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—MAX6025
(VIN= +5V, I
OUT
= 0, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
(V
OUT
+ 0.2V) ≤ VIN≤ 12.6V
Guaranteed by line-regulation test
TA= +25°C
Note 4
To V
OUT
= 0.1% of final value, C
OUT
= 50pF
VIN= 5V ±100mV, f = 120Hz
f = 10Hz to 10kHz
Short to IN
Short to GND
f = 0.1Hz to 10Hz
I
OUT
= 500µA
Sinking: -500µA ≤ I
OUT
≤ 0
TA= 0°C to +70°C
TA= 0°C to +70°C
(V
OUT
+ 0.2V) ≤ VIN≤ 12.6V
1000hr at TA= +25°C
Sourcing: 0 ≤ I
OUT
≤ 500µA
CONDITIONS
µA/V0.8 2.0IIN/V
IN
Change in Supply Current
µA27 35I
IN
Quiescent Supply Current
VV
OUT
+ 0.2 12.6V
IN
Supply Voltage Range
nF02.2C
OUT
Capacitive-Load Stability Range
µs85t
R
Turn-On Settling Time
dB82
∆V
OUT
/
∆V
IN
Ripple Rejection
µV
RMS
125
µVp-p50
e
OUT
Noise Voltage
ppm/
1000hr
50
∆V
OUT
/
time
Long-Term Stability
ppm130
∆V
OUT
/
time
Temperature Hysteresis (Note 3)
2.490 2.500 2.510
V2.495 2.500 2.505
V
OUT
Output Voltage
4
mA
4
I
SC
OUT Short-Circuit Current
mV100 200
VIN-
V
OUT
Dropout Voltage (Note 5)
0.18 0.80
615
625
µV/V15 140
∆V
OUT
/
∆V
IN
Line Regulation
0.14 0.60
UNITSMIN TYP MAXSYMBOLPARAMETER
MAX6025A
MAX6025B
V
OUT
ppm/°C
Output Voltage Temperature Coefficient (Note 2)
∆V
OUT
/
∆I
OUT
Load Regulation µV/µA
MAX6025A
MAX6025B
TA= -40°C to +85°C
TA= -40°C to +85°C
-0.20 0.20
-0.40 0.40
620
630
V
%
%
OUTPUT
DYNAMIC
INPUT
MAX6012/6021/6025/6030/6041/6045/6050
Precision, Low-Power, Low-Dropout,
SOT23-3 Voltage References
_______________________________________________________________________________________ 5
V
OUT
Output Voltage Temperature Coefficient (Note 2)
(V
OUT
+ 0.2V) ≤ VIN≤ 12.6V
∆V
OUT
/
∆I
OUT
Guaranteed by line-regulation test
TA= +25°C
Note 4
To V
OUT
= 0.1% of final value, C
OUT
= 50pF
VIN= 5V ±100mV, f = 120Hz
Short to IN
f = 10Hz to 10kHz
f = 0.1Hz to 10Hz
Short to GND
Sinking: -500µA ≤ I
OUT
≤ 0
TA= 0°C to +70°C
TA= 0°C to +70°C
(V
OUT
) +0.2V) ≤ VIN≤ 12.6V
Sourcing: 0 ≤ I
OUT
≤ 500µA
1000hr at TA= +25°C
CONDITIONS
ppm/°C
Load Regulation µV/µA
µA/V0.8 2.0IIN/V
IN
Change in Supply Current
µA27 35I
IN
Quiescent Supply Current
VV
OUT
+ 0.2 12.6V
IN
Supply Voltage Range
nF02.2C
OUT
Capacitive-Load Stability Range
µs100t
R
Turn-On Settling Time
dB80
∆V
OUT
/
∆V
IN
Ripple Rejection
µV
RMS
150
µVp-p65
e
OUT
Noise Voltage
ppm/
1000hr
50
∆V
OUT
/
time
Long-Term Stability
2.988 3.000 3.012
V2.994 3.000 3.006
V
OUT
Output Voltage
ppm130
Temperature Hysteresis (Note 3)
4
mA
4
I
SC
OUT Short-Circuit Current
0.18 0.80
615
625
µV/V20 150
∆V
OUT
/
∆V
IN
Line Regulation
0.14 0.60
UNITSMIN TYP MAXSYMBOLPARAMETER
MAX6030A
MAX6030B
ELECTRICAL CHARACTERISTICS—MAX6030
(VIN= +5V, I
OUT
= 0, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
VIN-
V
OUT
I
OUT
= 500µA
Dropout Voltage (Note 5)
mV100 200
MAX6030A
MAX6030B
%
V
%-0.20 0.20
-0.40 0.40
TA= -40°C to +85°C
TA= -40°C to +85°C 620
630
OUTPUT
DYNAMIC
INPUT
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