Maxim MAX6167BESA Precision, micropower, low-dropout, high- output-current, so-8 voltage reference Datasheet

19-1650; Rev 2; 2/02
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
The MAX6161–MAX6168 are precision, low-dropout,
micropower voltage references. These three-terminal
devices operate with an input voltage range from (VOUT
+ 200mV) to 12.6V and are available with output voltage options of 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V,
4.5V, and 5V. They feature a proprietary curvature-correction circuit and laser-trimmed thin-film resistors that
result in a very low temperature coefficient of 5ppm/°C
(max) and an initial accuracy of ±2mV (max).
Specifications apply to the extended temperature range
(-40°C to +85°C).
The MAX6161–MAX6168 typically draw only 90µA of
supply current and can source 5mA (4mA for
MAX6161) or sink 2mA of load current. Unlike conventional shunt-mode (two-terminal) references that waste
supply current and require an external resistor, these
devices offer a supply current that is virtually independent of the supply voltage (8µA/V variation) and do not
require an external resistor. Additionally, the internally
compensated devices do not require an external compensation capacitor. Eliminating the external compensation capacitor saves valuable board area in
space-critical applications. A low-dropout voltage and
a supply-independent, ultra-low supply current make
these devices ideal for battery-operated, high-performance, low-voltage systems.
The MAX6161–MAX6168 are available in 8-pin SO
packages.
________________________Applications
Analog-to-Digital Converters (ADCs)
Portable Battery-Powered Systems
Notebook Computers
PDAs, GPS, DMMs
Cellular Phones
____________________________Features
♦ ±2mV (max) Initial Accuracy
♦ 5ppm/°C (max) Temperature Coefficient
♦ 5mA Source Current at 0.9mV/mA
♦ 2mA Sink Current at 2.5mV/mA
♦ Stable with 1µF Capacitive Loads
♦ No External Capacitor Required
♦ 90µA (typ) Quiescent Supply Current
♦ 200mV (max) Dropout at 1mA Load Current
♦ 60µV/V Line Regulation
♦ Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V,
3V, 4.096V, 4.5V, 5V
Ordering Information
PART*
TEMP
RANGE
PINPACKAGE
OUTPUT
VOLTAGE
(V)
MAX6161_ESA
-40°C to +85°C
8 SO
1.250
MAX6162_ESA
-40°C to +85°C
8 SO
2.048
MAX6163_ESA
-40°C to +85°C
8 SO
3.000
MAX6164_ESA
-40°C to +85°C
8 SO
4.096
MAX6165_ESA
-40°C to +85°C
8 SO
5.000
MAX6166_ESA
-40°C to +85°C
8 SO
2.500
MAX6167_ESA
-40°C to +85°C
8 SO
4.500
MAX6168_ESA
-40°C to +85°C
8 SO
1.800
*Insert the code for the desired initial accuracy and temperature
coefficient (from the Selector Guide) in the blank to complete
the part number.
___________________Pin Configuration
TOP VIEW
Precision +3V/+5V Systems
N.C.
1
IN
2
N.C.
3
MAX6161–
MAX6168
GND 4
Typical Operating Circuit and Selector Guide appear at end
of data sheet.
8
N.C.
7
N.C.
6
OUT
5
N.C.
SO
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
MAX6161–MAX6168
General Description
MAX6161–MAX6168
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to GND
IN …………............................................................-0.3 to +13.5V
OUT……………… ........................................-0.3V to (VIN + 0.3V)
Output Short-Circuit Duration to GND or IN (VIN ≤ 6V) ...Continuous
Output Short-Circuit Duration to GND or IN (VIN > 6V)…...........60s
Continuous Power Dissipation (TA = +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range………….…………-65°C to +150°C
Lead Temperature (soldering, 10s)……………………….+300°C
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—MAX6161 (VOUT = 1.25V)
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
Output Voltage
SYMBOL
VOUT
Output Voltage Temperature
Coefficient (Note 1)
TCVOUT
Line Regulation
∆VOUT/
∆VIN
Load Regulation
∆VOUT/
∆IOUT
OUT Short-Circuit Current
ISC
Long-Term Stability
∆VOUT/
time
Output Voltage Hysteresis
(Note 2)
∆VOUT/
cycle
CONDITIONS
MIN
TYP
MAX
MAX6161A
1.248
1.250
1.252
MAX6161B
1.246
1.250
1.254
MAX6161A
4
10
MAX6161B
6
15
2.5V < VIN < 12.6V
6
60
Sourcing: 0 < IOUT < 4mA
0.5
0.9
Sinking: -2mA < IOUT < 0
1.3
2.5
Short to GND
110
Short to IN
25
1000hr at +25°C
80
ppm/
1000hr
80
ppm
f = 0.1Hz to 10Hz
20
µVp-p
f = 10Hz to 10kHz
15
µVRMS
VIN = +5V ±100mV, f = 120Hz
80
dB
VOUT to 0.1% of final value, COUT = 50pF
50
µs
TA = +25°C
UNITS
V
ppm/°C
µV/V
mV/mA
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
Ripple Rejection
Turn-On Settling Time
eOUT
VOUT/VIN
tR
INPUT CHARACTERISTICS
Supply Voltage Range
VIN
Quiescent Supply Current
IIN
Change in Supply Current
∆IIN/∆VIN
2
Guaranteed by line-regulation test
2.5V < VIN < 12.6V
2.5
12.6
V
90
120
µA
3.2
8.0
µA/V
_______________________________________________________________________________________
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
Output Voltage
SYMBOL
VOUT
Output Voltage Temperature
Coefficient (Note 1)
TCVOUT
Line Regulation
∆VOUT/
∆VIN
Load Regulation
∆VOUT/
∆IOUT
OUT Short-Circuit Current
ISC
Long-Term Stability
∆VOUT/
time
Output Voltage Hysteresis
(Note 2)
∆VOUT/
cycle
CONDITIONS
MIN
TYP
MAX
MAX6168A
1.798
1.800
1.802
MAX6168B
1.795
1.800
1.805
MAX6168A
2
5
MAX6168B
4
10
2.5V ≤ VIN ≥ 12.6V
42
200
Sourcing: 0 < IOUT < 5mA
0.5
0.9
Sinking: -2mA < IOUT < 0
1.5
4
Short to GND
110
Short to IN
25
1000hr at +25°C
80
ppm/
1000hr
80
ppm
TA = +25°C
UNITS
V
ppm/°C
µV/V
mV/mA
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
∆VOUT/
∆VIN
Ripple Rejection
Turn-On Settling Time
tR
f = 0.1Hz to 10Hz
22
µVp-p
f = 10Hz to 10kHz
25
µVRMS
VIN = +5V ±100mV, f = 120Hz
78
dB
VOUT to 0.1% of final value, COUT = 50pF
100
µs
INPUT CHARACTERISTICS
Supply Voltage Range
VIN
Quiescent Supply Current
IIN
Change in Supply Current
∆IIN/∆VIN
Guaranteed by line-regulation test
2.5V < VIN < 12.6V
2.5
12.6
V
90
120
µA
3.4
8.0
µA/V
_______________________________________________________________________________________
3
MAX6161–MAX6168
ELECTRICAL CHARACTERISTICS—MAX6168 (VOUT = 1.800V)
MAX6161–MAX6168
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
ELECTRICAL CHARACTERISTICS—MAX6162 (VOUT = 2.048V)
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
Output Voltage
SYMBOL
VOUT
CONDITIONS
MIN
TYP
MAX
MAX6162A
2.046
2.048
2.050
MAX6162B
2.043
2.048
2.053
MAX6162A
2
5
MAX6162B
4
10
TA = +25°C
UNITS
V
Output Voltage Temperature
Coefficient (Note 1)
TCVOUT
Line Regulation
∆VOUT/
2.5V < VIN < 12.6V
42
200
Load Regulation
∆VOUT/
∆IOUT
Sourcing: 0 < IOUT < 5mA
0.5
0.9
Sinking: -2mA < IOUT < 0
1.5
4
Short to GND
110
Short to IN
25
1000hr at +25°C
80
ppm/
1000hr
80
ppm
f = 0.1Hz to 10Hz
22
µVp-p
f = 10Hz to 10kHz
25
µVRMS
VIN = 5V ±100mV, f = 120Hz
78
dB
VOUT to 0.1% of final value, COUT = 50pF
100
µs
OUT Short-Circuit Current
ISC
Long-Term Stability
∆VOUT/
time
Output Voltage Hysteresis
(Note 2)
∆VOUT/
cycle
ppm/°C
µV/V
mV/mA
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
Ripple Rejection
Turn-On Settling Time
eOUT
VOUT/VIN
tR
INPUT CHARACTERISTICS
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current
4
VIN
IIN
∆IIN/∆VIN
Guaranteed by line-regulation test
2.5V < VIN < 12.6V
2.5
90
3.4
_______________________________________________________________________________________
12.6
V
120
8.0
µA
µA/V
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
Output Voltage
SYMBOL
VOUT
Output Voltage Temperature
Coefficient (Note 1)
Dropout Voltage (Note 3)
TCVOUT
MIN
TYP
MAX
MAX6166A
2.498
2.500
2.502
MAX6166B
2.495
2.500
2.505
MAX6166A
2
5
MAX6166B
4
10
50
200
mV
60
220
µV/V
Sourcing: 0 < IOUT < 5mA
0.5
0.9
Sinking: -2mA < IOUT < 0
1.6
5
Short to GND
110
Short to IN
25
1000hr at +25°C
80
ppm/
1000hr
80
ppm
TA = +25°C
VIN - VOUT IOUT = 1mA
Line Regulation
∆VOUT/
∆VIN
Load Regulation
∆VOUT/
∆IOUT
OUT Short-Circuit Current
CONDITIONS
ISC
Long-Term Stability
∆VOUT/
time
Output Voltage Hysteresis
(Note 2)
∆VOUT/
cycle
VOUT + 0.2V < VIN < 12.6V
UNITS
V
ppm/°C
mV/mA
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
VOUT/VIN
Ripple Rejection
Turn-On Settling Time
tR
f = 0.1Hz to 10Hz
27
µVp-p
f = 10Hz to 10kHz
30
µVRMS
VIN = 5V ±100mV, f = 120Hz
76
dB
VOUT to 0.1% of final value, COUT = 50pF
115
µs
INPUT CHARACTERISTICS
Supply Voltage Range
VIN
Quiescent Supply Current
IIN
Change in Supply Current
∆IIN/∆VIN
Guaranteed by line-regulation test
VOUT + 0.2V < VIN < 12.6V
VOUT + 0.2
12.6
V
90
120
µA
3.2
8.0
µA/V
_______________________________________________________________________________________
5
MAX6161–MAX6168
ELECTRICAL CHARACTERISTICS—MAX6166 (VOUT = 2.500V)
MAX6161–MAX6168
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
ELECTRICAL CHARACTERISTICS—MAX6163 (VOUT = 3.000V)
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
Output Voltage
Output Voltage Temperature
Coefficient (Note 1)
Dropout Voltage (Note 3)
SYMBOL
VOUT
TCVOUT
TA = +25°C
MIN
TYP
MAX
MAX6163A
2.998
3.000
3.002
MAX6163B
2.995
3.000
3.005
∆VOUT/
∆VIN
Load Regulation
∆VOUT/
∆IOUT
ISC
Long-Term Stability
∆VOUT/
time
Output Voltage Hysteresis
(Note 2)
∆VOUT/
cycle
UNITS
V
MAX6163A
2
5
MAX6163B
4
10
50
200
mV
VOUT + 0.2V < VIN < 12.6V
83
300
µV/V
Sourcing: 0 < IOUT < 5mA
0.5
0.9
Sinking: -2mA < IOUT < 0
1.8
5
Short to GND
110
Short to IN
25
1000hr at +25°C
80
ppm/
1000hr
80
ppm
f = 0.1Hz to 10Hz
35
µVp-p
f = 10Hz to 10kHz
40
µVRMS
VIN = 5V ±100mV, f = 120Hz
76
dB
VOUT to 0.1% of final value, COUT = 50pF
115
µs
VIN - VOUT IOUT = 1mA
Line Regulation
OUT Short-Circuit Current
CONDITIONS
ppm/°C
mV/mA
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
Ripple Rejection
Turn-On Settling Time
eOUT
VOUT/VIN
tR
INPUT CHARACTERISTICS
Supply Voltage Range
VIN
Quiescent Supply Current
IIN
Change in Supply Current
∆IIN/∆VIN
6
Guaranteed by line-regulation test
VOUT + 0.2V < VIN < 12.6V
VOUT + 0.2
12.6
V
90
120
µA
3.2
8.0
µA/V
_______________________________________________________________________________________
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
Output Voltage
SYMBOL
VOUT
Output Voltage Temperature
Coefficient (Note 1)
Dropout Voltage (Note 3)
TCVOUT
TA = +25°C
MIN
TYP
MAX
MAX6164A
4.094
4.096
4.098
MAX6164B
4.091
4.096
4.101
∆VOUT/
∆VIN
Load Regulation
∆VOUT/
∆IOUT
ISC
Long-Term Stability
∆VOUT/
time
Output Voltage Hysteresis
(Note 2)
∆VOUT/
cycle
UNITS
V
MAX6164A
2
5
MAX6164B
4
10
50
200
mV
VOUT + 0.2V < VIN < 12.6V
140
300
µV/V
Sourcing: 0 < IOUT < 5mA
0.6
0.9
Sinking: -2mA < IOUT < 0
2.0
7.0
Short to GND
110
Short to IN
25
1000hr at +25°C
80
ppm/
1000hr
80
ppm
f = 0.1Hz to 10Hz
50
µVp-p
f = 10Hz to 10kHz
50
µVRMS
VIN = 5V ±100mV, f = 120Hz
72
dB
VOUT to 0.1% of final value, COUT = 50pF
190
µs
VIN - VOUT IOUT = 1mA
Line Regulation
OUT Short-Circuit Current
CONDITIONS
ppm/°C
mV/mA
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Ripple Rejection
VOUT/VIN
Turn-On Settling Time
tR
INPUT CHARACTERISTICS
Supply Voltage Range
VIN
Quiescent Supply Current
IIN
Change in Supply Current
∆IIN/∆VIN
Guaranteed by line-regulation test
VOUT + 0.2V < VIN < 12.6V
VOUT + 0.2
12.6
V
90
120
µA
3.2
8.0
µA/V
_______________________________________________________________________________________
7
MAX6161–MAX6168
ELECTRICAL CHARACTERISTICS—MAX6164 (VOUT = 4.096V)
MAX6161–MAX6168
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
ELECTRICAL CHARACTERISTICS—MAX6167 (VOUT = 4.500V)
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
Output Voltage
Output Voltage Temperature
Coefficient (Note 1)
Dropout Voltage (Note 3)
SYMBOL
VOUT
TCVOUT
TA = +25°C
MIN
TYP
MAX
MAX6167A
4.498
4.500
4.502
MAX6167B
4.495
4.500
4.505
∆VOUT/
∆VIN
Load Regulation
∆VOUT/
∆IOUT
ISC
Long-Term Stability
∆VOUT/
time
Output Voltage Hysteresis
(Note 2)
∆VOUT/
cycle
UNITS
V
MAX6167A
2
5
MAX6167B
4
10
50
200
mV
160
450
µV/V
VIN - VOUT IOUT = 1mA
Line Regulation
OUT Short-Circuit Current
CONDITIONS
VOUT + 0.2V < VIN < 12.6V
ppm/°C
Sourcing: 0 < IOUT < 5mA
0.6
0.9
Sinking: -2mA < IOUT < 0
2.3
8.0
Short to GND
110
Short to IN
25
1000hr at +25°C
80
ppm/
1000hr
80
ppm
mV/mA
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
Ripple Rejection
Turn-On Settling Time
eOUT
VOUT/VIN
tR
f = 0.1Hz to 10Hz
55
µVp-p
f = 10Hz to 10kHz
55
µVRMS
VIN = 5V ±100mV, f = 120Hz
70
dB
VOUT to 0.1% of final value, COUT = 50pF
230
µs
INPUT CHARACTERISTICS
Supply Voltage Range
VIN
Quiescent Supply Current
IIN
Change in Supply Current
∆IIN/∆VIN
8
Guaranteed by line-regulation test
VOUT + 0.2V < VIN < 12.6V
VOUT + 0.2
12.6
V
90
120
µA
3.1
8.0
µA/V
_______________________________________________________________________________________
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
(VIN = +5.5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
Output Voltage
SYMBOL
VOUT
Output Voltage Temperature
Coefficient (Note 1)
Dropout Voltage (Note 3)
TCVOUT
TA = +25°C
MIN
TYP
MAX
MAX6165A
4.998
5.000
5.002
MAX6165B
4.995
5.000
5.005
MAX6165A
2
5
MAX6165B
4
10
UNITS
V
ppm/°C
IOUT = 1mA
50
200
mV
Line Regulation
∆VOUT/
VOUT + 0.2V < VIN < 12.6V
180
400
µV/V
Load Regulation
∆VOUT/
∆IOUT
Sourcing: 0 < IOUT < 5mA
0.6
0.9
Sinking: -2mA < IOUT < 0
2.4
8.0
Short to GND
110
Short to IN
25
1000hr at +25°C
80
ppm/
1000hr
80
ppm
f = 0.1Hz to 10Hz
60
µVp-p
f = 10Hz to 10kHz
60
µVRMS
VIN = 5.5V ±100mV, f = 120Hz
65
dB
VOUT to 0.1% of final value, COUT = 50pF
300
µs
OUT Short-Circuit Current
VIN - VOUT
CONDITIONS
ISC
Long-Term Stability
∆VOUT/
time
Output Voltage Hysteresis
(Note 2)
∆VOUT/
cycle
mV/mA
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Ripple Rejection
VOUT/VIN
Turn-On Settling Time
tR
INPUT CHARACTERISTICS
Supply Voltage Range
VIN
Quiescent Supply Current
IIN
Change in Supply Current
∆IIN/∆VIN
Guaranteed by line-regulation test
VOUT + 0.2V < VIN < 12.6V
VOUT + 0.2
12.6
V
90
120
µA
3.1
8.0
µA/V
Note 1: Temperature Coefficient is specified by the “box” method; i.e., the maximum ∆VOUT is divided by the maximum ∆T.
Note 2: Thermal Hysteresis is defined as the change in TA = +25°C output voltage before and after temperature cycling of the
device (from TA = TMIN to TMAX). Initial measurement at TA = +25°C is followed by temperature cycling the device to
TA = +85°C then to TA = -40°C, and another measurement at TA = +25°C is compared to the original measurement at
TA = +25°C.
Note 3: Dropout voltage is the minimum input voltage at which VOUT changes ≤ 0.2% from VOUT at VIN = 5.0V (VIN = 5.5V for
MAX6165).
_______________________________________________________________________________________
9
MAX6161–MAX6168
ELECTRICAL CHARACTERISTICS—MAX6165 (VOUT = 5.000V)
Typical Operating Characteristics
(VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 4)
MAX6162
OUTPUT VOLTAGE TEMPERATURE DRIFT
5.002
MAX6161/68 toc03
35
MAX6161/68 toc02
5.003
MAX6161/68 toc01
30
25
5.001
PPM
2.048
MAX6161
PPM vs. TIME
MAX6165
OUTPUT VOLTAGE TEMPERATURE DRIFT
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
2.049
20
15
5.000
10
4.999
THREE
TYPICAL PARTS
10
35
60
65
-40
-15
10
35
60
600
800
TIME (hr)
MAX6165
PPM vs. TIME
MAX6161
LINE REGULATION
MAX6165
LINE REGULATION
30
20
10
MAX6161/68 toc05
TA = +25°C
200
100
TA = +85°C
TA = -40°C
0
-100
-200
200
400
600
800
TA = -40°C
-200
TA = +85°C
-400
-600
TA = +25°C
-800
-1200
2
1000
0
-1000
-300
0
4
6
8
10
12
5
7
9
11
TIME (hr)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
MAX6161
LOAD REGULATION
MAX6165
LOAD REGULATION
MAX6166
DROPOUT VOLTAGE
vs. LOAD CURRENT
TA = -40°C
0
TA = +25°C
-1
6
4
2
0
-4
-3
-6
0
LOAD CURRENT (mA)
2
4
TA = +85°C
0.25
0.20
TA = +25°C
0.15
0.10
TA = -40°C
-2
-2
-2
TA = +25°C
MAX6161/68 toc09
8
DROPOUT VOLTAGE (V)
2
TA = +85°C
13
0.30
MAX6161/68 toc08
TA = +85°C
3
12
10
OUTPUT VOLTAGE CHANGE (mV)
MAX6161/68 toc07
5
4
1000
200
OUTPUT VOLTAGE CHANGE (µV)
40
300
OUTPUT VOLTAGE CHANGE (µV)
MAX6161/68 toc04
50
-4
400
TEMPERATURE (°C)
60
1
200
TEMPERATURE (°C)
70
0
0
85
MAX6161/68 toc06
-15
80
PPM
0
4.998
-40
10
5
THREE
TYPICAL PARTS
2.047
OUTPUT VOLTAGE CHANGE (mV)
MAX6161–MAX6168
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
0.05
TA = -40°C
0
-6
-4
-2
0
2
LOAD CURRENT (mA)
4
6
0
1
2
3
LOAD CURRENT (mA)
______________________________________________________________________________________
4
5
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
(VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 4)
MAX6165
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX6161
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
-10
-20
TA = +25°C
TA = -40°C
0.10
PSRR (dB)
-30
-40
-50
-70
-60
-80
-70
-90
1
2
3
4
5
-80
0.001
0.01
0.1
1
10
100
1000
0.001
10
0.1
LOAD CURRENT (mA)
FREQUENCY (kHz)
FREQUENCY (kHz)
MAX6161
SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX6165
SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX6161
SUPPLY CURRENT
vs. TEMPERATURE
90
110
80
105
100
95
90
1000
120
VIN = 12.5V
110
SUPPLY CURRENT (µA)
100
115
MAX6161/68 toc14
MAX6161/68 toc13
110
SUPPLY CURRENT (µA)
0
-40
-50
-60
0
-30
MAX6161/68 toc15
0.15
MAX6161/68 toc12
-20
PSRR (dB)
DROPOUT VOLTAGE (V)
-10
0.05
SUPPLY CURRENT (µA)
0
MAX6161/68 toc11
TA = +85°C
0.20
0
MAX6161/68 toc10
0.25
MAX6165
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
VIN = 7.5V
100
90
VIN = 5.5V
VIN = 2.5V
80
85
80
70
6
8
10
9
11
13
10
35
60
MAX6165
SUPPLY CURRENT
vs. TEMPERATURE
MAX6161
OUTPUT IMPEDANCE
vs. FREQUENCY
MAX6165
OUTPUT IMPEDANCE
vs. FREQUENCY
VIN = 7.5V
95
VIN = 5.5V
200
180
160
140
120
100
80
60
35
TEMPERATURE (°C)
60
85
140
120
100
80
60
20
0
0
10
160
40
20
85
180
85
MAX6161/68 toc18
MAX6161/68 toc17
220
40
-15
-15
TEMPERATURE (°C)
VIN = 12.5V
-40
-40
INPUT VOLTAGE (V)
MAX6161/68 toc16
SUPPLY CURRENT (µA)
7
INPUT VOLTAGE (V)
115
105
70
5
12
OUTPUT IMPEDANCE (Ω)
4
OUTPUT IMPEDANCE (Ω)
2
0.001
0.1
10
FREQUENCY (kHz)
1000
0.001
0.1
10
1000
FREQUENCY (kHz)
______________________________________________________________________________________
11
MAX6161–MAX6168
Typical Operating Characteristics (continued)
Typical Operating Characteristics (continued)
(VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 4)
MAX6161
0.1Hz TO 10Hz OUTPUT NOISE
VOUT
10µV/div
MAX6161/68 toc20
MAX6161/68 toc19
MAX6165
NOISE
VOUT
10µV/div
1s/div
MAX6161
TURN-ON TRANSIENT
(CL = 50pF)
MAX6165
TURN-ON TRANSIENT
(CL = 50pF)
VOUT
500mV/div
VIN
5V/div
VOUT
2V/div
VIN
5V/div
10µs/div
40µs/div
MAX6161
LOAD TRANSIENT
(IOUT = ±250µA, VIN = 5.0, CL = 0)
MAX6165
LOAD TRANSIENT
(IOUT = ±250µA, CL = 0, VIN = 5.5V)
MAX6161/68 toc23
MAX6161/68 toc24
+250µA
IOUT
500µA/div
-250µA
VOUT
AC-COUPLED
100mV/div
+250µA
IOUT
500µA/div
-250µA
VOUT
AC-COUPLED
50mV/div
400µs/div
12
MAX6161/67 toc22
1s/div
MAX6161/68 toc21
MAX6161–MAX6168
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
400µs/div
______________________________________________________________________________________
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
(VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 4)
MAX6165
LOAD TRANSIENT
(IOUT = ±250µA, CL = 1µF, VIN = 5.5V)
MAX6161
LOAD TRANSIENT
(IOUT = ±250µA, VIN = 5.0V, CL = 1µF)
MAX6161/68 toc26
MAX6161/68 toc25
+250µA
+250µA
IOUT
500µA/div
-250µA
IOUT
500µA/div
-250µA
VOUT
AC-COUPLED
20mV/div
VOUT
AC-COUPLED
10mV/div
400µs/div
400µs/div
MAX6161
LOAD TRANSIENT
(VIN = 5.0V, CL = 0, IOUT = ±2mA)
MAX6165
LOAD TRANSIENT
(CL = 0, IOUT = ±2mA, VIN = 5.5V)
MAX6161/68 toc27
MAX6161/68 toc28
+2mA
IOUT
5mA/div
-2mA
VOUT
AC-COUPLED
100mV/div
+2mA
IOUT
5mA/div
-2mA
VOUT
AC-COUPLED
50mV/div
400µs/div
400µs/div
MAX6165
LOAD TRANSIENT
(CL = 1µF, IOUT = ±2mA, VIN = 5.5V)
MAX6161
LOAD TRANSIENT
(VIN = 5.0V, CL = 1µF, IOUT = ±2mA)
MAX6161/68 toc30
MAX6161/68 toc29
+2mA
IOUT
5mA/div
-2mA
VOUT
AC-COUPLED
50mV/div
+2mA
IOUT
5mA/div
-2mA
VOUT
AC-COUPLED
20mV/div
400µs/div
400µs/div
______________________________________________________________________________________
13
MAX6161–MAX6168
Typical Operating Characteristics (continued)
MAX6161–MAX6168
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
Typical Operating Characteristics (continued)
(VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 4)
MAX6165
LOAD TRANSIENT
(IOUT = ±5mA, CL = 0, VIN = 5.5V)
MAX6161
LOAD TRANSIENT
(VIN = 5.0V, CL = 0, IOUT = ±4mA)
MAX6161/68 toc32
MAX6161/68 toc31
+5mA
+4mA
IOUT
5mA/div
-4mA
IOUT
5mA/div
-5mA
VOUT
AC-COUPLED
100mV/div
VOUT
AC-COUPLED
200mV/div
400µs/div
400µs/div
MAX6161
LOAD TRANSIENT
(VIN = 5.0V, CL = 1µF, IOUT = ±4mA)
MAX6165
LOAD TRANSIENT
(IOUT = ±5mA, CL = 1µF, VIN = 5.5V)
MAX6161/68 toc34
MAX6161/68 toc33
+5mA
+4mA
IOUT
5mA/div
IOUT
5mA/div
-4mA
-5mA
VOUT
AC-COUPLED
50mV/div
VOUT
AC-COUPLED
50mV/div
400µs/div
400µs/div
MAX6161
LINE TRANSIENT
(CL = 0)
MAX6165
LINE TRANSIENT
(CL = 0)
MAX6161/68 toc35
+0.25V
+0.25V
VIN
500mV/div
-0.25V
MAX6161/68 toc36
VIN
500mV/div
-0.25V
VOUT
AC-COUPLED
20mV/div
VOUT
AC-COUPLED
20mV/div
40µs/div
40µs/div
Note 4: Many of the Typical Operating Characteristics of the MAX6161 family are extremely similar. The extremes of these characteristics
are found in the MAX6161 (1.25V output) and the MAX6165 (5.0V output). The Typical Operating Characteristics of the remainder of the MAX6161 family typically lie between these two extremes and can be estimated based on their output voltages.
14
___________________________________________________________________________________________________
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
PIN
NAME
FUNCTION
1, 3, 5, 7, 8
N.C.
2
IN
4
GND
Ground
6
OUT
Reference Output
No Connection. Not internally connected.
Input Voltage
Applications Information
Input Bypassing
For the best line-transient performance, decouple the
input with a 0.1µF ceramic capacitor as shown in the
Typical Operating Circuit. Locate the capacitor as
close to IN as possible. When transient performance is
less important, no capacitor is necessary.
Output/Load Capacitance
Devices in the MAX6161 family do not require an output
capacitor for frequency stability. In applications where
the load or the supply can experience step changes,
an output capacitor of at least 0.1µF will reduce the
amount of overshoot (undershoot) and improve the circuit’s transient response. Many applications do not
require an external capacitor, and the MAX6161 family
can offer a significant advantage in applications when
board space is critical.
Output Voltage Hysteresis
Output voltage hysteresis is the change in the input
voltage at TA = +25°C before and after the device is
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 80ppm.
Turn-On Time
These devices typically turn on and settle to within
0.1% of their final value in 50µs to 300µs, depending on
the output voltage (see electrical table of part used).
The turn-on time can increase up to 1.5ms with the
device operating at the minimum dropout voltage and
the maximum load.
Typical Operating Circuit
Supply Current
The quiescent supply current of the series-mode
MAX6161 family is typically 90µA and is virtually independent of the supply voltage, with only an 8µA/V
(max) variation with supply voltage. Unlike series references, shunt-mode references operate with a series
resistor connected to the power supply. The quiescent
current of a shunt-mode reference is thus a function of
the input voltage. Additionally, shunt-mode references
have to be biased at the maximum expected load current, even if the load current is not present at the time.
In the MAX6161 family, the load current is drawn from
the input voltage only when required, so supply current
is not wasted and efficiency is maximized at all input
voltages. This improved efficiency reduces power dissipation and extends battery life.
When the supply voltage is below the minimum specified input voltage (as during turn-on), the devices can
draw up to 400µA beyond the nominal supply current.
The input voltage source must be capable of providing
this current to ensure reliable turn-on.
+SUPPLY INPUT (SEE SELECTOR GUIDE)
IN
OUT
0.1µF*
REFERENCE
OUT
MAX6161–
MAX6168
GND
1µF*
*CAPACITORS ARE OPTIONAL.
__________________________Chip
Information
TRANSISTOR COUNT: 117
PROCESS: BiCMOS
______________________________________________________________________________________
15
MAX6161–MAX6168
Pin Description
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
MAX6161–MAX6168
Selector Guide
16
PART
OUTPUT VOLTAGE
INITIAL ACCURACY
(V)
(mV)
TEMPERATURE
COEFFICIENT
(ppm/°C)
MAX6161A
1.250
±2
10
MAX6161B
1.250
±4
15
MAX6168A
1.800
±2
5
MAX6168B
MAX6162A
1.800
2.048
±5
±2
10
5
MAX6162B
2.048
±5
10
MAX6166A
2.500
±2
5
MAX6166B
2.500
±5
10
MAX6163A
3.000
±2
5
MAX6163B
3.000
±5
10
MAX6164A
4.096
±2
5
MAX6164B
4.096
±5
10
MAX6167A
4.500
±2
5
MAX6167B
MAX6165A
4.500
5.000
±5
±2
10
5
MAX6165B
5.000
±5
10
______________________________________________________________________________________
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
SOICN.EPS
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________17
© 2002 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX6161–MAX6168
Package Information
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