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MAX1277AETC-T

Description
Analog to Digital Converters - ADC
CategoryAnalog mixed-signal IC    converter   
File Size343KB,18 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX1277AETC-T Overview

Analog to Digital Converters - ADC

MAX1277AETC-T Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeQFN
package instructionHVQCCN, LCC12,.16SQ,32
Contacts12
Reach Compliance Codenot_compliant
ECCN codeEAR99
Maximum analog input voltage2.058 V
Minimum analog input voltage
Maximum conversion time0.667 µs
Converter typeADC, SUCCESSIVE APPROXIMATION
JESD-30 codeS-XQCC-N12
JESD-609 codee0
length4 mm
Maximum linear error (EL)0.0244%
Humidity sensitivity level1
Number of analog input channels1
Number of digits12
Number of functions1
Number of terminals12
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Output bit codeBINARY
Output formatSERIAL
Package body materialUNSPECIFIED
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC12,.16SQ,32
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)240
power supply3/3.3 V
Certification statusNot Qualified
Sampling rate1.5 MHz
Sample and hold/Track and holdTRACK
Maximum seat height0.8 mm
Nominal supply voltage3 V
surface mountYES
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formNO LEAD
Terminal pitch0.8 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width4 mm
19-3365; Rev 1; 4/09
1.5Msps, Single-Supply, Low-Power, True-
Differential, 12-Bit ADCs with Internal Reference
General Description
The MAX1277/MAX1279 are low-power, high-speed, seri-
al-output, 12-bit, analog-to-digital converters (ADCs) with
an internal reference that operates at up to 1.5Msps.
These devices feature true-differential inputs, offering bet-
ter noise immunity, distortion improvements, and a wider
dynamic range over single-ended inputs. A standard
SPI™/QSPI™/MICROWIRE™ interface provides the clock
necessary for conversion. These devices easily interface
with standard digital signal processor (DSP) synchronous
serial interfaces.
The MAX1277/MAX1279 operate from a single +2.7V to
+3.6V supply voltage. The MAX1277/MAX1279 include a
2.048V internal reference. The MAX1277 has a unipolar
analog input, while the MAX1279 has a bipolar analog
input. These devices feature a partial power-down mode
and a full power-down mode for use between conver-
sions, which lower the supply current to 2mA (typ) and
1µA (max), respectively. Also featured is a separate
power-supply input (V
L
), which allows direct interfacing to
+1.8V to V
DD
digital logic. The fast conversion speed,
low-power dissipation, excellent AC performance, and DC
accuracy (±1 LSB INL) make the MAX1277/MAX1279
ideal for industrial process control, motor control, and
base-station applications.
The MAX1277/MAX1279 come in a 12-pin TQFN pack-
age, and are available in the extended (-40°C to +85°C)
temperature range.
o
1.5Msps Sampling Rate
o
Only 22mW (typ) Power Dissipation
o
Only 1µA (max) Shutdown Current
o
High-Speed, SPI-Compatible, 3-Wire Serial Interface
o
68.5dB S/(N + D) at 525kHz Input Frequency
o
Internal True-Differential Track/Hold (T/H)
o
Internal 2.048V Reference
o
No Pipeline Delays
o
Small 12-Pin TQFN Package
Features
MAX1277/MAX1279
Ordering Information
PART
MAX1277AETC-T
MAX1277BETC-T
MAX1279AETC-T
MAX1279BETC-T
TEMP RANGE
PIN-
PACKAGE
INPUT
Unipolar
Unipolar
Bipolar
Bipolar
-40°C to +85°C 12 TQFN
-40°C to +85°C 12 TQFN
-40°C to +85°C 12 TQFN
-40°C to +85°C 12 TQFN
Applications
Data Acquisition
Bill Validation
Motor Control
Communications
Portable Instruments
Typical Operating Circuit
Pin Configuration
+2.7V TO +3.6V
+1.8V TO V
DD
AIN+
12
N.C.
11
SCLK
10
TOP VIEW
10μF
0.01μF
V
DD
0.01μF
V
L
DOUT
10μF
AIN-
REF
RGND
1
2
3
9
8
7
CNVST
DOUT
V
L
MAX1277
MAX1279
DIFFERENTIAL +
INPUT
VOLTAGE -
AIN+
AIN-
MAX1277
MAX1279
REF
4.7μF
0.01μF
RGND
μC/DSP
CNVST
SCLK
4
V
DD
5
N.C.
6
GND
GND
TQFN
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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