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MAX187BC/

Description
1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
Categorysemiconductor    logic   
File Size433KB,18 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric View All

MAX187BC/ Overview

1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16

MAX187BC/ Parametric

Parameter NameAttribute value
Maximum conversion time8.5 µs
Maximum linear error0.0488 %
Number of functions1
Number of terminals16
Minimum operating temperature0.0 Cel
Maximum operating temperature70 Cel
Processing package description0.300 INCH, SOP-16
each_compliYes
stateActive
Type of converterADC, SUCCESSIVE APPROXIMATION
Analog input voltage minimum0.0 V
Analog input voltage maximum value4.1 V
jesd_30_codeR-PDSO-G16
jesd_609_codee0
moisture_sensitivity_level1
Number of analog channels1
Number of digits12
Output bit encodingBINARY
Output formatSERIAL
Packaging MaterialsPLASTIC/EPOXY
ckage_codeSOP
ckage_equivalence_codeSOP16,.4
packaging shapeRECTANGULAR
Package SizeSMALL OUTLINE
eak_reflow_temperature__cel_240
wer_supplies__v_5
qualification_statusCOMMERCIAL
Sample and hold and track and holdTRACK
Sampling Rate0.0750 MHz
seated_height_max2.65 mm
sub_categoryAnalog to Digital Converters
Maximum supply voltage2 mA
Rated supply voltage5 V
surface mountYES
CraftsmanshipCMOS
Temperature levelCOMMERCIAL
terminal coatingTIN LEAD
Terminal formGULL WING
Terminal spacing1.27 mm
Terminal locationDUAL
ime_peak_reflow_temperature_max__s_20
length10.3 mm
width7.5 mm
EVALUATION KIT AVAILABLE
MAX187/MAX189
+5V, Low-Power, 12-Bit Serial ADCs
General Description
The MAX187/MAX189 serial 12-bit analog-to-digital con-
verters (ADCs) operate from a single +5V supply and
accept a 0 to 5V analog input. Both parts feature an 8.5Fs
successive-approximation ADC, a fast track/hold (1.5Fs),
an on-chip clock, and a high-speed 3-wire serial interface.
The MAX187/MAX189 digitize signals at a 75ksps
throughput rate. An external clock accesses data from
the interface, which communicates without external
hardware to most digital signal processors and micro-
controllers. The interface is compatible with SPI, QSPIK,
and MICROWIRE
M
.
The MAX187 has an on-chip buffered reference, and
the MAX189 requires an external reference. Both the
MAX187 and MAX189 save space with 8-pin PDIP and
16-pin SO packages. Power consumption is 7.5mW and
reduces to only 10FW in shutdown.
Excellent AC characteristics and very low power con-
sumption combined with ease of use and small package
size make these converters ideal for remote DSP and
sensor applications, or for circuits where power con-
sumption and space are crucial.
S
12-Bit Resolution
S
±½ LSB Integral Nonlinearity (MAX187A/MAX189A)
S
Internal Track/Hold, 75kHz Sampling Rate
S
Single +5V Operation
S
Low Power: 2µA Shutdown Current
1.5mA Operating Current
S
Internal 4.096V Buffered Reference (MAX187)
S
3-Wire Serial Interface, Compatible with SPI, QSPI,
and MICROWIRE
S
Small-Footprint 8-Pin PDIP and 16-Pin SO
Features
Applications
Portable Data Logging
Remote Digital Signal Processing
Isolated Data Acquisition
High-Accuracy Process Control
Ordering Information
appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to
www.maximintegrated.com/MAX187.related.
Functional Diagram
GND 5
A
V
= 1.638
(4.096V)
REF-
DAC
REF+
10kI
+2.5V
BANDGAP
REFERENCE
(MAX187 ONLY)
OUTPUT
SHIFT
REGISTER
6 DOUT
8 SCLK
12-BIT
SAR
REF 4
AIN 2
T/H
MAX187
MAX189
V
DD
1
COMPARATOR
BUFFER ENABLE/DISABLE
CONTROL
AND
TIMING
7 CS
3 SHDN
NOTE: PIN NUMBERS SHOWN ARE FOR 8-PIN DIPs ONLY
QSPI is a trademark of Motorola.
MICROWIRE is a registered trademark of National Semiconductor Corp.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-0196; Rev 1; 3/12
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