MAX6043 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – Precision High-Voltage Reference in SOT23

19-3036; Rev 1; 5/04
Precision High-Voltage Reference in SOT23
General Description
The MAX6043 precision voltage reference provides
accurate preset +2.5V, +3.3V, +4.096V, +5.0V, and
+10V reference voltages from up to +40V input volt-
ages. The MAX6043 features a proprietary temperature
coefficient curvature-correction circuit and laser-
trimmed thin-film resistors that result in a very low tem-
perature coefficient of 15ppm/°C (max) and excellent
initial accuracy of 0.05% (max). Low temperature drift
and low noise make the MAX6043 ideal for use with
high-resolution A/D or D/A converters.
The MAX6043 draws 320µA of supply current and
sources 10mA or sinks 0.6mA of load current. The
MAX6043 uses bandgap technology for low-noise per-
formance and excellent accuracy. The MAX6043 does
not require an output bypass capacitor for stability, and
is stable with capacitive loads up to 100µF. Eliminating
the output bypass capacitor saves valuable board area
in space-critical applications. The supply-independent,
low supply current makes the MAX6043 ideal for bat-
tery-operated, high-performance systems.
The MAX6043 is available in a 6-pin SOT23 package
and operates over the automotive (-40°C to +125°C)
temperature range.
Applications
Analog-to-Digital Converters
Digital-to-Analog Converters
Digital Voltmeters
Voltage Regulators
Threshold Detectors
TOP VIEW
Pin Configuration
I.C.* 1
6 OUTS
GND 2 _MAX6043 5 OUTF
I.C.* 3
4 IN
SOT23-6
*INTERNALLY CONNECTED. DO NOT CONNECT.
Features
o +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output
Voltages
o Excellent Temperature Stability: 15ppm/°C (max)
o Tight Initial Accuracy: 0.05% (max)
o Tiny SOT23 Package
o Wide +4.5V to +40V Supply Voltage Range
o Low Noise: 4µV_P-P (typ at 2.5V Output)
o Short-Circuit Protected
o Wide Operating Temperature Range
-40°C to +125°C
o Stable with Capacitive Loads from 0 to 100µF
o No External Capacitors Required for Stability
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX6043AAUT25-T
MAX6043BAUT25-T
MAX6043CAUT25-T
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
6 SOT23-6
6 SOT23-6
6 SOT23-6
ABRZ
ABDQ
ABDR
Ordering Information continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
Selector Guide
PART
OUTPUT
VOLTAGE
(V)
MAX6043AAUT25
MAX6043BAUT25
MAX6043CAUT25
MAX6043AAUT33
MAX6043BAUT33
MAX6043CAUT33
MAX6043AAUT41
MAX6043BAUT41
MAX6043CAUT41
MAX6043AAUT50
MAX6043BAUT50
MAX6043CAUT50
MAX6043AAUT10
MAX6043BAUT10
MAX6043CAUT10
2.5
2.5
2.5
3.3
3.3
3.3
4.096
4.096
4.096
5.0
5.0
5.0
10.0
10.0
10.0
TEMPCO
(ppm/^oC)
-40^oC to
+125^oC
15
20
65
15
20
65
15
20
65
15
20
65
15
20
65
INITIAL
ACCURACY
(%)
0.06
0.1
0.5
0.06
0.1
0.5
0.06
0.1
0.5
0.06
0.1
0.5
0.05
0.1
0.5
________________________________________________________________ Maxim Integrated Products 1
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