Datasheet MAX6035 (Analog Devices)

19-2606; Rev 3; 11/06
High-Supply-Voltage, Precision Voltage Reference in SOT23 MAX6035 General Description Features
The MAX6035 is a high-voltage, precision micropower ♦
Wide Supply Voltage Range: Up to 33V
voltage reference. This three-terminal device is available ♦
25ppm/°C (max) Temperature Coefficient
with output voltage options of 2.5V, 3.0V, and 5.0V. It is an
(-40°C to +85°C)
excellent upgrade for industry-standard devices such as ♦
±0.2% (max) Initial Accuracy
the REF02 and REF43. The MAX6035 offers 14x lower ♦ power than the REF02 and 5x lower power than the
95µA (max) Quiescent Supply Current
REF43, as well as a reduced package size from an 8-pin ♦
10mA Source Current, 2mA Sink Current
SO to a 3-pin SOT23. The MAX6035 features a proprietary ♦
No Output Capacitor Required
temperature coefficient curvature-correction circuit and ♦
Stable with Capacitive Loads up to 5µF
laser-trimmed, thin-film resistors that result in a very low temperature coefficient of 25ppm/°C (max) and an initial
Ordering Information
accuracy of ±0.2% (max).
PIN - TOP
The MAX6035 typically draws only 73µA of supply cur-
PART TEMP RANGE PA C K A G E MARK
rent and can source 10mA or sink 2mA of load current. MAX6035AAUR25-T -40°C to +125°C 3 SOT23-3 FZMW Unlike conventional shunt-mode (two-terminal) refer- ences that waste supply current and require an external MAX6035BAUR25-T -40°C to +125°C 3 SOT23-3 FZMX resistor, this device offers a supply current that is virtu- MAX6035ESA25 -40°C to +85°C 8 SO — ally independent of the supply voltage and does not MAX6035AAUR30-T -40°C to +125°C 3 SOT23-3 FZMY require an external resistor. Additionally, this internally MAX6035BAUR30-T -40°C to +125°C 3 SOT23-3 FZMZ compensated device does not require an external com- pensation capacitor, but is also stable with capacitive MAX6035AAUR50-T -40°C to +125°C 3 SOT23-3 FZNA loads up to 5µF. Eliminating the external compensation MAX6035BAUR50-T -40°C to +125°C 3 SOT23-3 FZNB capacitor saves valuable board area in space-critical
Note:
The 3-pin SOT23 package code is U3-1. The 8-pin SO applications. The supply independent, ultra-low supply package code is S8-2. current makes this device ideal for battery-operated,
Selector Guide
high-performance systems. The MAX6035 is available in a 3-pin SOT23 package
MAXIMUM MAXIMUM
and is specified for operation from -40°C to +125°C.
OUTPUT TEMPCO INITIAL PART VOLTAGE Applications (ppm/°C) ACCURACY (V) (-40°C to +85°C) (%)
MAX6035AAUR25 25 0.20 2.5 4mA to 20mA Industrial Digital Multimeters MAX6035BAUR25 65 0.50 2.5 Control Loops Portable Data-Acquisition MAX6035ESA25 40 0.20 2.5 Li+ Battery Chargers Systems MAX6035AAUR30 25 0.20 3.0 12-Bit A/D and D/A Low-Power Test Converters Equipment MAX6035BAUR30 65 0.50 3.0 MAX6035AAUR50 25 0.20 5.0
Typical Operating Circuit
MAX6035BAUR50 65 0.50 5.0
Pin Configurations
+SUPPLY INPUT (SEE SELECTOR GUIDE) TOP VIEW IN OUT REFERENCE N.C. 1 8 N.C. IN 1 OUT IN 2 7 N.C. 0.1µF* 3 GND MAX6035 MAX6035 MAX6035 N.C. 3 6 OUT GND OUT 2 GND 4 5 N.C.
SOT23
*CAPACITOR IS OPTIONAL.
SO ________________________________________________________________ Maxim Integrated Products 1 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.