MAX1036, MAX1036K, MAX1036L, MAX1036M, MAX1037, MAX1037K, MAX1037L, MAX1037M, MAX1038, MAX1038K, MAX1038L, MAX1038M, MAX1039, MAX1039K, MAX1039L, MAX1039M 2.7V to 5.5V, Low-Power, 4-/12-Channel 2-Wire Serial 8-Bit ADCs

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The MAX1036–MAX1039 low-power, 8-bit, multichannel, analog-to-digital converters (ADCs) feature internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. These devices operate from a single supply and require only 350µA at the maximum sampling rate of 188ksps. AutoShutdown™ powers down the devices between conversions reducing supply current to less than 1µA at low throughput rates. The MAX1036/MAX1037 have four analog input channels each, while the MAX1038/MAX1039 have twelve analog input channels. The analog inputs are software configurable for unipolar or bipolar and singleended or pseudo-differential operation.

The full-scale analog input range is determined by the internal reference or by an externally applied reference voltage ranging from 1V to V_DD. The MAX1037/MAX1039 feature a 2.048V internal reference and the MAX1036/MAX1038 feature a 4.096V internal reference.

The MAX1036/MAX1037 are available in 8-pin SOT23 packages. The MAX1038/MAX1039 are available in 16-pin QSOP packages. The MAX1036–MAX1039 are guaranteed over the extended industrial temperature range (-40°C to +85°C). Refer to MAX1136–MAX1139 for 10-bit devices and to the MAX1236–MAX1239 for 12-bit devices.

Key Features

Applications/Uses

High-Speed I²C-Compatible Serial Interface
- 400kHz Fast Mode
- 1.7MHz High-Speed Mode
Single Supply
- 2.7V to 3.6V (MAX1037/MAX1039)
- 4.5V to 5.5V (MAX1036/MAX1038)
Internal Reference
- 2.048V (MAX1037/MAX1039)
- 4.096V (MAX1036/MAX1038)
External Reference: 1V to V_DD
Internal Clock
4-Channel Single-Ended or 2-Channel Pseudo-Differential (MAX1036/MAX1037)
12-Channel Single-Ended or 6-Channel Pseudo-Differential (MAX1038/MAX1039)
Internal FIFO with Channel-Scan Mode
Low Power
- 350µA at 188ksps
- 110µA at 75ksps
- 8µA at 10ksps
- 1µA in Power-Down Mode
Software Configurable Unipolar/Bipolar
Small Packages
- 8-Pin SOT23 (MAX1036/MAX1037)
- 16-Pin QSOP (MAX1038/MAX1039)

	Battery-Powered Test Equipment
	Handheld Portable Applications
	Medical Instruments
	Receive Signal Strength Indicators
	Solar-Powered Remote Systems
	System Supervision

Key Specifications: Precision ADCs (< 5Msps)

Part Number

ADC Resolution (Bits)

Input Channels

Conv. Rate (ksps)

Max. Conv. Time (µs)

Data Bus (Bits)

Ref. (V)

Diff. In

Supply Voltage (V)

Typ. Supply Current (mA)

Typ. Power (mW)

Low Power Mode

Standby Mode

EV-Kit

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX1036

188

5.3

I2C Compatible

Ext
Int +4.096

Yes

0.35

1.75

Yes

SOT-23/8

-40 to +85

$1.65 @ 1k

MAX1037

Ext
Int +2.048

3
3.3

1.15

SOT-23/8

$1.65 @ 1k

MAX1038

Ext
Int +4.096

1.75

QSOP/16

$1.90 @ 1k

MAX1039

Ext
Int +2.048

3
3.3

1.15

QSOP/16

$1.90 @ 1k

See All Precision ADCs (< 5Msps) (301)

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 prices and delivery, please see the price and availability page or contact an authorized distributor.