EVALUATION KIT AVAILABLE
MAX11165
16-Bit, 250ksps, 0 to 5V SAR ADC with
Internal Reference in TDFN
General Description
Benefits and Features
● High DC/AC Accuracy Improves Measurement
The MAX11165 16-bit, 250ksps, SAR ADC offers
excellent AC and DC performance with unipolar input
range, small size, and internal reference. The MAX11165
integrates an optional internal reference and buffer,
saving additional cost and space.
Quality
• 16-Bit Resolution with No Missing Codes
• 250ksps Throughput Rates Without Pipeline Delay/
Latency
• 92.4dB SNR and -104.2dB THD at 10kHz
This ADC achieves 92.4dB SNR and -104.2dB THD.
The MAX11165 guarantees 16-bit no-missing codes and
±0.6 LSB INL (typ).
• 0.5 LSB
Input-Referred Noise
RMS
• ±0.2 LSB DNL (typ) and ±0.6 LSB INL (typ)
● Highly Integrated ADC Saves Cost and Space
The MAX11165 communicates using an SPI-compatible
serial interface at 2.3V, 3V, 3.3V, or 5V logic. The serial
interface can be used to daisy-chain multiple ADCs for
multichannel applications and provides a busy indicator
option for simplified system synchronization and timing.
• ±6ppm/°C Internal Reference
• Internal Reference Buffer
● Wide Supply Range and Low Power Simplify Power-
Supply Design
• 5V Analog Supply
• 2.3V to 5V Digital Supply
• 19mW Power Consumption at 250ksps
• 10μA in Shutdown Mode
The MAX11165 is offered in a 12-pin, 3mm x 3mm, TDFN
package and is specified over the -40NC to +85NC
temperature range.
● Multi-Industry Standard Serial Interface and Small
Package Reduce Size
Applications
● Data Acquisition Systems
● Industrial Control Systems/Process Control
● Medical Instrumentation
● Automatic Test Equipment
™
®
• SPI/QSPI /MICROWIRE /DSP-Compatible Serial
Interface
• 3mm x 3mm Tiny 12-Pin TDFN Package
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a registered trademark of National
Semiconductor Corporation.
Selector Guide and Ordering Information appear at end of
data sheet.
Typical Operating Circuit
14-Bit to 18-Bit SAR ADC Family
14-BIT
16-BIT
16-BIT
18-BIT
500ksps
250ksps
500ksps
500ksps
±5V Input
Internal
Reference
OVDD
(2.3V TO 5V)
1µF
V
(5V)
DD
1µF
MAX11167 MAX11166 MAX11156
MAX11169 MAX11168 MAX11158
—
—
SCLK
DIN
10Ω
INTERFACE
AND CONTROL
AIN+
AIN-
HOST
CONTROLLER
0 to +5V
16-BIT ADC
DOUT
CNVST
0 to 5V Input
Internal
Reference
4.7nF
MAX9632
C0G
MAX11161 MAX11160 MAX11150
MAX11165 MAX11164 MAX11154
CONFIGURATION
REGISTER
Ceramic
REF
MAX11165
INTERNAL
REFERENCE
REF
BUF
10µF
REFIO
0 to 5V Input
External
0.1µF
AGNDS
GND
MAX11262 MAX11163 MAX11162 MAX11152
Reference
19-6724; Rev 3; 11/15