EVALUATION KIT AVAILABLE
MAX11166/MAX11167
16-Bit, 500ksps/250ksps, ±5V SAR ADCs with
Internal Reference in TDFN
General Description
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.
Features
● High DC and AC Accuracy
● 16-Bit Resolution with No Missing Codes
● SNR: 92.6dB
The MAX11166/MAX11167 measure a Q5V (10V ) input
P-P
● THD: -105dB at 10kHz
● ±0.5 LSB INL (typ)
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/NC reference with internal buffer, saving
the cost and space of an external reference.
● ±0.2 LSB DNL (typ)
● Internal Reference and Reference Buffer Saves Cost
and Board Space
● 6ppm/°C typ
These ADCs achieve 92.6dB SNR and -105dB THD. The
MAX11166/MAX11167 guarantee 16-bit no-missing codes
and Q0.5 LSB INL (typ).
● Tiny 12-Pin 3mm x 3mm TDFN Package
● Bipolar ±5V Analog Input Range Saves External
Signal Conditioning
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 pro-
vides a busy indicator option for simplified system syn-
chronization and timing.
● Single-Supply ADC with Low Power
● 5V Analog Supply
● 2.3V to 5V Digital Supply
● 26.4mW at 500ksps
● 1µA Shutdown Mode
The MAX11166/MAX11167 are offered in 12-pin, 3mm x
3mm, TDFN packages and are specified over the -40NC
to +85NC temperature range.
● 500ksps Throughput Rate (MAX11166)
● 250ksps Throughput Rate (MAX11167)
● No Pipeline Delay/Latency
Applications
● Flexible Industry-Standard Serial Interface Saves I/O
●ꢀ Data Acquisition Systems
●ꢀ Industrial Control Systems/Process Control
●ꢀ Medical Instrumentation
●ꢀ Automatic Test Equipment
Pins
®
● SPI/QSPI™/MICROWIRE /DSP-Compatible
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.
For related parts and recommended products to use with this part, refer
to www.maximintegrated.com/MAX11166.related.
Typical Operating Circuit
V
OVDD
1µF
DD
1µF
(5V)
(2.3V TO 5V)
SCLK
DIN
DOUT
50Ω
500pF
AIN+
AIN-
INTERFACE
HOST
CONTROLLER
5V
16-BIT ADC
AND CONTROL
MAX9632
CNVST
MAX11166
MAX11167
CONFIGURATION REGISTER
INTERNAL REFERENCE
REF
REF
BUF
10µF
REFIO
0.1µF
AGNDS
GND
19-6445; Rev 1; 12/12