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MAX1093 fiches techniques PDF

Maxim Integrated - 10-Bit ADCs

Numéro de référence MAX1093
Description 10-Bit ADCs
Fabricant Maxim Integrated 
Logo Maxim Integrated 





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MAX1093 fiche technique
19-1638; Rev 2; 12/02
EVAALVUAAILTAIOBNLEKIT
250ksps, +3V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
General Description
The MAX1091/MAX1093 low-power, 10-bit analog-to-
digital converters (ADCs) feature a successive-approxi-
mation ADC, automatic power-down, fast wake-up
(2µs), an on-chip clock, +2.5V internal reference, and a
high-speed, byte-wide parallel interface. They operate
with a single +3V analog supply and feature a VLOGIC
pin that allows them to interface directly with a +1.8V to
+3.6V digital supply.
Power consumption is only 5.7mW (VDD = VLOGIC) at the
maximum sampling rate of 250ksps. Two software-selec-
table power-down modes enable the MAX1091/
MAX1093 to be shut down between conversions;
accessing the parallel interface returns them to normal
operation. Powering down between conversions can cut
supply current to under 10µA at reduced sampling rates.
Both devices offer software-configurable analog inputs
for unipolar/bipolar and single-ended/pseudo-differen-
tial operation. In single-ended mode, the MAX1091 has
eight input channels and the MAX1093 has four input
channels (four and two input channels, respectively,
when in pseudo-differential mode).
Excellent dynamic performance and low power, com-
bined with ease of use and small package size, make
these converters ideal for battery-powered and data-
acquisition applications or for other circuits with demand-
ing power consumption and space requirements.
The MAX1091/MAX1093 tri-states INT when CS goes
high. Refer to MAX1061/MAX1063 if tri-stating INT is not
desired.
The MAX1091 is available in a 28-pin QSOP package,
while the MAX1093 is available in a 24-pin QSOP. For
pin-compatible +5V, 10-bit versions, refer to the
MAX1090/MAX1092 data sheet.
Industrial Control Systems
Applications
Data Logging
Energy Management
Patient Monitoring
Data-Acquisition Systems Touch Screens
Ordering Information
PART
TEMP RANGE
MAX1091ACEI
MAX1091BCEI
MAX1091AEEI
MAX1091BEEI
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
28 QSOP
28 QSOP
28 QSOP
28 QSOP
INL
(LSB)
±0.5
±1
±0.5
±1
Features
o 10-Bit Resolution, ±0.5 LSB Linearity
o +3V Single-Supply Operation
o User-Adjustable Logic Level (+1.8V to +3.6V)
o Internal +2.5V Reference
o Software-Configurable, Analog Input Multiplexer
8-Channel Single-Ended/
4-Channel Pseudo-Differential (MAX1091)
4-Channel Single-Ended/
2-Channel Pseudo-Differential (MAX1093)
o Software-Configurable, Unipolar/Bipolar Inputs
o Low Power
1.9mA (250ksps)
1.0mA (100ksps)
400µA (10ksps)
2µA (Shutdown)
o Internal 3MHz Full-Power Bandwidth Track/Hold
o Byte-Wide Parallel (8 + 2) Interface
o Small Footprint: 28-Pin QSOP (MAX1091)
24-Pin QSOP (MAX1093)
Pin Configurations
TOP VIEW
HBEN 1
D7 2
D6 3
D5 4
D4 5
D3 6
MAX1093
24 VLOGIC
23 VDD
22 REF
21 REFADJ
20 GND
19 COM
D2 7
D1/D9 8
18 CH0
17 CH1
D0/D8 9
INT 10
RD 11
WR 12
16 CH2
15 CH3
14 CS
13 CLK
QSOP
Pin Configurations continued at end of data sheet.
Ordering Information continued at end of data sheet.
Typical Operating Circuits appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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