MAX1227, MAX1229, MAX1231 12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference

Description

The MAX1227/MAX1229/MAX1231 are serial 12-bit analog-to-digital converters (ADCs) with an internal reference and an internal temperature sensor. These devices feature on-chip FIFO, scan mode, internal clock mode, internal averaging, and AutoShutdown™. The maximum sampling rate is 300ksps using an external clock. The MAX1231 has 16 input channels, the MAX1229 has 12 input channels, and the MAX1227 has 8 input channels. All input channels are configurable for single-ended or differential inputs in unipolar or bipolar mode. All three devices operate from a +3V supply and contain a 10MHz SPI™/QSPI™/MICROWIRE™-compatible serial port.

The MAX1231 is available in 28-pin 5mm x 5mm TQFN with exposed pad and 24-pin QSOP packages. The MAX1227/MAX1229 are only available in QSOP packages. All three devices are specified over the extended -40°C to +85°C temperature range.

Complete the Signal Chain! Recommended Op Amps

Key Features

Applications/Uses

Internal Temperature Sensor (±1°C Accuracy)
16-Entry First-In/First-Out (FIFO)
Analog Multiplexer with True Differential Track/Hold
- 16-, 12-, 8-Channel Single Ended
- 8-, 6-, 4-Channel True Differential
- (Unipolar or Bipolar)
Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing Codes Over Temperature
Scan Mode, Internal Averaging, and Internal Clock
Low-Power Single +3V Operation
- 0.62mA at 300ksps
Internal 2.5V Reference or External Differential Reference
10MHz 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
Space-Saving 28-Pin 5mm x 5mm TQFN Package

	Data Acquisition Systems
	Data Logging
	Industrial Control Systems
	Instrumentation
	Patient Monitoring
	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)

Standby Mode

Package

Price^**

MAX1227

300

2.7

Serial

Ext.
Int.+2.5

Yes

3
3.3

0.62

1.86

QSOP/16

$4.45 @ 1k

MAX1229

QSOP/20

$4.98 @ 1k

MAX1231

QSOP/24
TQFN/28

$5.43 @ 1k

See All Precision ADCs (< 5Msps) (375)

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.

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-56 of 56

MAX1227

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1227BCEE

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16-1*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1227BCEE+

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+1*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1227BCEE+T

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+1*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1227ACEE+

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+1*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1227ACEE+T

Land Pattern: Not Available

0°C to +70°C

See data sheet

MAX1227BCEE-T

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16-1*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1227ACEE

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16-1*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1227ACEE-T

Land Pattern: Not Available

0°C to +70°C

See data sheet

MAX1227AEEE-T

Land Pattern: Not Available

-40°C to +85°C

See data sheet

MAX1227BEEE+

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1227AEEE+T

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1227AEEE+

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1227BEEE-T

Land Pattern: Not Available

-40°C to +85°C

See data sheet

MAX1227BEEE

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1227AEEE

QSOP;16 pin;31 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1227BEEE+T

Land Pattern: Not Available

-40°C to +85°C

See data sheet

MAX1229

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1229ACEP+

QSOP;20 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20+1*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1229ACEP+T

Land Pattern: Not Available

0°C to +70°C

See data sheet

MAX1229BCEP+

QSOP;20 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20+1*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1229BCEP-T

Land Pattern: Not Available

0°C to +70°C

See data sheet

MAX1229BCEP

QSOP;20 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20-1*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1229BCEP+T

QSOP;20 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20+1*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1229ACEP

QSOP;20 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20-1*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1229ACEP-T

Land Pattern: Not Available

0°C to +70°C

See data sheet

MAX1229AEEP+

QSOP;20 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1229BEEP+T

QSOP;20 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1229BEEP+

QSOP;20 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1229AEEP+T

Land Pattern: Not Available

-40°C to +85°C

See data sheet

MAX1229AEEP-T

Land Pattern: Not Available

-40°C to +85°C

See data sheet

MAX1229BEEP

QSOP;20 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1229BEEP-T

Land Pattern: Not Available

-40°C to +85°C

See data sheet

MAX1229AEEP

QSOP;20 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0168 (PDF)
Use pkgcode/variation: E20-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1231

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1231BCEG

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24-1*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1231BCEG+

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+1*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1231BCEG+T

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+1*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1231ACEG+T

Land Pattern: Not Available

0°C to +70°C

See data sheet

MAX1231ACEG

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24-1*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1231ACEG-T

Land Pattern: Not Available

0°C to +70°C

See data sheet

MAX1231BCEG-T

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24-1*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1231ACEG+

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+1*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1231AEEG+

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1231AEEG+T

Land Pattern: Not Available

-40°C to +85°C

See data sheet

MAX1231BEEG+

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1231BEEG+T

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1231AEEG-T

Land Pattern: Not Available

-40°C to +85°C

See data sheet

MAX1231BEEG

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1231BEEG-T

Land Pattern: Not Available

-40°C to +85°C

See data sheet

MAX1231AEEG

QSOP;24 pin;54 mm²
Outline Drawing: 21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1231BCTI+T

Land Pattern: Not Available

0°C to +70°C

See data sheet

MAX1231BCTI+

TQFN;28 pin;26 mm²
Outline Drawing: 21-0140 (PDF)
Land Pattern: 90-0026 (PDF)
Use pkgcode/variation: T2855+6*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1231BCTI-T

Land Pattern: Not Available

0°C to +70°C

See data sheet

MAX1231BCTI

TQFN;28 pin;26 mm²
Outline Drawing: 21-0140 (PDF)
Land Pattern: 90-0026 (PDF)
Use pkgcode/variation: T2855-6*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX1231BETI

TQFN;28 pin;26 mm²
Outline Drawing: 21-0140 (PDF)
Land Pattern: 90-0026 (PDF)
Use pkgcode/variation: T2855-6*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1231BETI-T

TQFN;28 pin;26 mm²
Outline Drawing: 21-0140 (PDF)
Land Pattern: 90-0026 (PDF)
Use pkgcode/variation: T2855-6*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1231BETI+

TQFN;28 pin;26 mm²
Outline Drawing: 21-0140 (PDF)
Land Pattern: 90-0026 (PDF)
Use pkgcode/variation: T2855+6*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1231BETI+T

TQFN;28 pin;26 mm²
Outline Drawing: 21-0140 (PDF)
Land Pattern: 90-0026 (PDF)
Use pkgcode/variation: T2855+6*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis