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MAX1118 fiches techniques PDF

Maxim Integrated - Single-Supply / Low-Power / 2-Channel / Serial 8-Bit ADCs

Numéro de référence MAX1118
Description Single-Supply / Low-Power / 2-Channel / Serial 8-Bit ADCs
Fabricant Maxim Integrated 
Logo Maxim Integrated 





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MAX1118 fiche technique
19-1857; Rev 0; 11/00
Single-Supply, Low-Power,
2-Channel, Serial 8-Bit ADCs
General Description
The MAX1117/MAX1118/MAX1119 low-power, 8-bit,
dual-channel, analog-to-digital converters (ADCs) fea-
ture an internal track/hold (T/H) voltage reference
(MAX1117/MAX1119), clock, and serial interface. The
MAX1118 is specified from +2.7V to +5.5V and con-
sumes only 135µA at 100ksps. The MAX1117 is speci-
fied from +2.7V to +3.6V, and the MAX1119 is specified
from +4.5V to +5.5V, each consumes only 175µA at
100ksps.
The full-scale analog input range is determined by the
internal reference of +2.048V (MAX1117) or +4.096V
(MAX1119), or by an externally applied reference rang-
ing from +1V to VDD (MAX1118). All devices feature an
automatic shutdown mode that reduces supply current
to <1µA when the device is not in use. The 3-wire serial
interface directly connects to SPI™, QSPI™, and
MICROWIRE™ devices without external logic.
Conversions up to 100ksps are performed using an
internal clock.
The MAX1117/MAX1118/MAX1119 are available in an
8-pin SOT23 package with a footprint that is only 11%
of an 8-pin plastic DIP.
Features
o Single Supply
+2.7V to +3.6V (MAX1117)
+2.7V to +5.5V (MAX1118)
+4.5V to +5.5V (MAX1119)
o Internal Track/Hold: 100kHz Sampling Rate
o Internal Reference
+2.048V (MAX1117)
+4.096V (MAX1119)
o Reference Input Range: 0 to VDD (MAX1118)
o SPI/QSPI/MICROWIRE-Compatible Serial Interface
o Small 8-Pin SOT23 Package
o Automatic Power-Down
o Analog Input Range: 0 to VREF
o Low Power
175µA at 100ksps (typ) (MAX1117/MAX1119)
135µA at 100ksps (typ) (MAX1118)
18µA at 10ksps (typ)
1µA (typ) in Power-Down Mode
________________________Applications
Low-Power, Handheld Portable Devices
System Diagnostics
Battery-Powered Test Equipment
Solar-Powered Remote Systems
Receive Signal Strength Indicators
4mA to 20mA Powered Remote Data Acquisition
Systems
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor, Corp.
Functional Diagram appears at end of data sheet.
Ordering Information
PART
MAX1117EKA
MAX1118EKA
MAX1119EKA
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
8 SOT23
8 SOT23
8 SOT23
TOP
MARK
AADW
AADX
AADY
Pin Configuration
TOP VIEW
VDD 1
CHO 2
CH1 3
GND 4
( ) ARE FOR MAX1118 ONLY
MAX1117
MAX1118
MAX1119
SOT23
8 SCLK
7 DOUT
6 CNVST
5 (REF) I.C
________________________________________________________________ Maxim Integrated Products 1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

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