The MAX6161–MAX6168 are precision, low-dropout, micropower voltage references. These three-terminal devices operate with an input voltage range from (V_OUT + 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 100µA 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. Low dropout voltage and 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.

MAX6161, MAX6162, MAX6163, MAX6164, MAX6165, MAX6166, MAX6167, MAX6168: Typical Operating Circuit

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Key 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
100µA (typ) Quiescent Supply Current
200mV (max) Dropout at 1mA Load Current
Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V, 4.5V, 5V

Applications/Uses

A/D Converters
Cell Phones
Notebook Computers
PDAs, GPSs, DMMs
Portable Battery-Powered Systems
Precision 3V/5V Systems

Parametric Specs

Part Number

V_OUT
(V)

Temp. Coeff.
(ppm/°C)

Initial Accuracy
(% max)

I_SUPPLY
(µA)

V_SUPPLY
(V)

Noise 0.1Hz to 10Hz
(µVpp)

Oper. Temp.
(°C)

Package/Pins

Budgetary
Price

max

@ +25°C

max

min

max

typ

See Notes

MAX6161A

1.25

0.16

120

2.5

12.6

-40 to +85

SOIC(N)/8

$2.50 @1k

MAX6161B

1.25

0.32

2.5

SOIC(N)/8

$2.00 @1k

MAX6162A

2.048

0.1

2.5

SOIC(N)/8

$2.50 @1k

MAX6162B

2.048

0.24

2.5

SOIC(N)/8

$2.00 @1k

MAX6163A

0.07

3.2

SOIC(N)/8

$2.50 @1k

MAX6163B

0.17

3.2

SOIC(N)/8

$2.07 @1k

MAX6164A

4.096

0.05

4.3

SOIC(N)/8

$2.50 @1k

MAX6164B

4.096

0.12

4.3

SOIC(N)/8

$2.00 @1k

MAX6165A

0.04

5.2

SOIC(N)/8

$2.50 @1k

MAX6165B

0.1

5.2

SOIC(N)/8

$2.07 @1k

MAX6166A

2.5

0.1

2.7

SOIC(N)/8

$2.57 @1k

MAX6166B

2.5

0.2

2.7

SOIC(N)/8

$2.00 @1k

MAX6167A

4.5

0.04

4.7

SOIC(N)/8

$2.57 @1k

MAX6167B

4.5

0.1

4.7

SOIC(N)/8

$2.07 @1k

MAX6168A

1.8

0.1

2.5

SOIC(N)/8

$2.50 @1k

MAX6168B

1.8

0.28

2.5

SOIC(N)/8

$2.07 @1k

See All Voltage References (171)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

Quality and Environmental Data

Product Reliability Reports: MAX6163.pdf
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

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Quality And Environmental

Device	Fab Process	Technology	Sample size	Rejects	FIT at 25°C	FIT at 55°C

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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