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LM285LPRE3-1-2 +BOM

1.235-V, –40°C to +85°C, micropower voltage reference

Manufacturer:

Texas Instruments
Mfr.Part #:

LM285LPRE3-1-2
Datasheet:

LM285LPRE3-1-2 Datasheet (PDF)
Mounting Style:

Through Hole
Reference Type:

Shunt References
Output Voltage:

1.235 V
Initial Accuracy:

1 %
EDA/CAD Models:

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LM285LPRE3-1-2 General Description

These micropower, two-terminal, band-gap voltage references operate over a 10-μA to 20-mA current range and feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming provides tight voltage tolerance. The band-gap reference for these devices has low noise and long-term stability.

The design makes these devices exceptionally tolerant of capacitive loading and, thus, easier to use in most reference applications. The wide dynamic operating temperature range accommodates varying current supplies, with excellent regulation.

The extremely low power drain of this series makes them useful for micropower circuitry. These voltage references can be used to make portable meters, regulators, or general-purpose analog circuitry, with battery life approaching shelf life. The wide operating current range allows them to replace older references with tighter-tolerance parts.

Key Features

Operating Current Range
- LM285-1.2: 10 μA to 20 mA
- LM385-1.2: 15 μA to 20 mA
- LM385B-1.2: 15 μA to 20 mA
1% and 2% Initial Voltage Tolerance
Reference Impedance
- LM385-1.2: 1 Ω MAX at 25°C
- All devices: 1.5 Ω MAX over Full
  Temperature Range
Very Low Power Consumption
Interchangeable with Industry Standard
LM285-1.2 and LM385-1.2

Specifications

Product Category	Voltage References	Mounting Style	Through Hole
Reference Type	Shunt References	Output Voltage	1.235 V
Initial Accuracy	1 %	Temperature Coefficient	20 PPM / C
Series VREF - Input Voltage - Max	-	Shunt Current - Max	20 mA
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 85 C
Series	LM285-1.2	Accuracy	12 mV
Description/Function	MICROPOWER VOLTAGE REFERENCE	Height	3.68 mm
Length	4.83 mm	Product	Voltage References
Product Type	Voltage References	Shunt Current - Min	10 uA
Factory Pack Quantity	2000	Subcategory	PMIC - Power Management ICs
Topology	Shunt References	Width	3.43 mm
Unit Weight	0.007520 oz