Maxim > Products > Analog-to-Digital Converters > MAX11166, MAX11167

MAX11166, MAX11167

16-Bit, 500ksps/250ksps, ±5V SAR ADCs with Internal Reference in TDFN

Industry's Smallest, True Bipolar ±5V, 16-Bit ADCs
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Status Explanations for product status codes

Part Number Status
MAX11166 Active: In Production. See Ordering Information for details.
MAX11167 Active: In Production.


The MAX11166/MAX11167 16-bit, 500ksps/250ksps, SAR ADCs offer excellent AC and DC performance with true bipolar input range, small size, and internal reference. The MAX11166/MAX11167 measure a ±5V (10VP-P) input range while operating from a single 5V supply. A patented charge-pump architecture allows direct sampling of high-impedance sources. The MAX11166/MAX11167 integrate an optional 6ppm/°C reference with internal buffer, saving the cost and space of an external reference.

These ADCs achieve 92.6dB SNR and -105dB THD. The MAX11166/MAX11167 guarantee 16-bit no-missing codes and ±0.5 LSB INL (typ).

The MAX11166/MAX11167 communicate using an SPI-compatible serial interface at 2.5V, 3V, 3.3V, or 5V logic. The serial interface can be used to daisy-chain multiple ADCs in parallel for multichannel applications and provides a busy indicator option for simplified system synchronization and timing.

The MAX11166/MAX11167 are offered in 12-pin, 3mm x 3mm, TDFN packages and are specified over the -40°C to +85°C temperature range.

Data Sheet

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An evaluation board is available: MAX11166EVSYS

Key Features

  • High DC and AC Accuracy
  • 16-Bit Resolution with No Missing Codes
  • SNR: 92.6dB
  • THD: -105dB at 10kHz
  • ±0.5 LSB INL (typ)
  • ±0.2 LSB DNL (typ)
  • Internal Reference and Reference Buffer Saves Cost and Board Space
  • 6ppm/°C typ
  • Tiny 12-Pin 3mm x 3mm TDFN Package
  • Bipolar ±5V Analog Input Range Saves External Signal Conditioning
  • Single-Supply ADC with Low Power
  • 5V Analog Supply
  • 2.3V to 5V Digital Supply
  • 26.4mW at 500ksps
  • 1µA Shutdown Mode
  • 500ksps Throughput Rate (MAX11166)
  • 250ksps Throughput Rate (MAX11167)
  • No Pipeline Delay/Latency
  • Flexible Industry-Standard Serial Interface Saves I/O Pins


  • Automatic Test Equipment
  • Data Acquisition Systems
  • Industrial Control Systems/Process Control
  • Medical Instrumentation

Key Specifications:

Precision ADCs (< 5Msps)
Part Number Resolution
Input Chan. Conv. Rate
ADC Architecture Data Bus Diff/S.E. Input Internal VREF
External VREF
External VREF
Bipolar VIN
ADC max nominal min max max See Notes
MAX11166  16 1 500 SAR
DSP-Compatible Serial
Both 4.096 2.5 4.25 5 93 92 $14.63 @1k
MAX11167  250 SPI 5 92.5 $11.67 @1k
See All Precision ADCs (< 5Msps) (456)

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.


MAX11166, MAX11167: Typical Operating Circuit
Typical Operating Circuit

Reliability Reports

Reliability Report: MAX11166.pdf
Show FIT data for:
Request Reliability Report for:


MAX11166/7 IBIS Model

Ordering Information

Filters: Part Number Package: Temperature: Tape and Reel Sample
Part Number Free
Buy Status Explanations for product status codes Package:
Temp RoHS/Lead-Free?
Materials Analysis
MAX11166DBEVKIT#     N/A No Longer Available KIT;
See data sheet
Active TDFN;12 pin;9.6 mm²
-40°C to +85°C See data sheet
Active KIT;
See data sheet
Active TDFN;12 pin;9.6 mm²
-40°C to +85°C See data sheet
Active TDFN;12 pin;9.6 mm²
-40°C to +85°C See data sheet

  1. Other options and links for purchasing parts are listed at:
  2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
  3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
  4. * 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.

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See All Precision ADCs (< 5Msps) (455Products)

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Evaluation Kits

MAX11166EVSYS Evaluation System for the MAX11166

Products with Similar Part Numbers

MAX11166EVSYS Evaluation System for the MAX11166

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More Information

Topmark Coding MAX11166
Topmark Coding MAX11167
New Product Press Release   2012-12-12 ]

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Information Index

Document Ref.: 19-6445 Rev 1; 2013-01-21
This page last modified: 2013-10-03