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MAX191ACNG-

Description
Analog to Digital Converters - ADC 12Bit 100ksps 5V Precision ADC
Categorysemiconductor    Analog mixed-signal IC   
File Size225KB,24 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX191ACNG- Overview

Analog to Digital Converters - ADC 12Bit 100ksps 5V Precision ADC

MAX191ACNG- Parametric

Parameter NameAttribute value
Product CategoryAnalog to Digital Converters - ADC
ManufacturerMaxim
RoHSDetails
Mounting StyleThrough Hole
Package / CasePDIP-24
Resolution12 bit
Number of Channels1 Channel
Sampling Rate100 kS/s
Input TypeDifferential
Interface TypeParallel, Serial, SPI
ArchitectureSAR
Reference TypeExternal, Internal
Maximum Operating Temperature+ 70 C
Minimum Operating Temperature0 C
PackagingTube
DNL - Differential Nonlinearity+/- 1 LSB
Height4.45 mm (Max)
INL - Integral Nonlinearity+/- 0.5 LSB
Length32.13 mm (Max)
Number of Converters1 Converter
Operating Supply Voltage+/- 5 V, + 5 V
Pd - Power Dissipation1067 mW
ProductAnalog to Digital Converters
Factory Pack Quantitycdatxcdxwfxsdxyzrv15
Width7.87 mm (Max)
Unit Weight0.131925 oz
19-4506; Rev 4; 2/97
UAL
IT MAN
TION K
A
SHEET
EVALU
S DATA
W
FOLLO
Low-Power, 12-Bit Sampling ADC
with Internal Reference and Power-Down
General Description
____________________________Features
o
o
o
o
o
12-Bit Resolution, 1/2LSB Linearity
+5V or ±5V Operation
Built-In Track/Hold
Internal Reference with Adjustment Capability
Low Power: 3mA Operating Mode
20µA Power-Down Mode
o
100ksps Tested Sampling Rate
o
Serial and 8-Bit Parallel µP Interface
o
24-Pin Narrow DIP and Wide SO Packages
MAX191
The MAX191 is a monolithic, CMOS, 12-bit analog-to-
digital converter (ADC) featuring differential inputs,
track/hold (T/H), internal voltage reference, internal or
external clock, and parallel or serial µP interface. The
MAX191 has a 7.5µs conversion time, a 2µs acquisition
time, and a guaranteed 100ksps sample rate.
The MAX191 operates from a single +5V supply or from
dual ±5V supplies, allowing ground-referenced bipolar
input signals. The device features a logic power-down
input, which reduces the 3mA V
DD
supply current to
50µA max, including the internal-reference current.
Decoupling capacitors are the only external compo-
nents needed for the power supply and reference. This
ADC operates with either an external reference, or an
internal reference that features an adjustment input for
trimming system gain errors.
The MAX191 provides three interface modes: two 8-bit
parallel modes, and a serial interface mode that is com-
patible with SPI
TM
, QSPI
TM
, and MICROWIRE
TM
serial-
interface standards.
Ordering Information
PART
MAX191ACNG
MAX191BCNG
MAX191ACWG
MAX191BCWG
MAX191BC/D
MAX191AENG
MAX191BENG
MAX191AEWG
MAX191BEWG
MAX191AMRG
MAX191BMRG
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
-55°C to +125°C
PIN-PACKAGE
24 Narrow Plastic DIP
24 Narrow Plastic DIP
24 Wide SO
24 Wide SO
Dice*
24 Narrow Plastic DIP
24 Narrow Plastic DIP
24 Wide SO
24 Wide SO
24 Narrow CERDIP**
24 Narrow CERDIP**
ERROR
(LSB)
±1/2
±1
±1/2
±1
±1
±1/2
±1
±1/2
±1
±1/2
±1
________________________Applications
Battery-Powered Data Logging
PC Pen Digitizers
High-Accuracy Process Control
Electromechanical Systems
Data-Acquisition Boards for PCs
Automatic Testing Systems
Telecommunications
Digital Signal Processing (DSP)
* Dice are specified at T
A
= +25°C, DC parameters only.
** Contact factory for availability and processing to MIL-STD-883.
Pin Configuration
TOP VIEW
PD
1
24
V
DD
23
CLK/SCLK
22
PAR
21
HBEN
Functional Diagram
V
DD
24
5
VREF
6
REFADJ
CLK/SCLK
23
OSC
3-STATE
OUTPUT
8-BIT
BUS
AND
SERIAL
I/O
18
17
16
15
14
13
11
10
D7/DOUT
D6/SCLK
OUT
D5/SSTRB
D4
D3/D11
D2/D10
D1/D9
D0/D8
V
SS
2
AIN+
3
AIN-
4
VREF
5
REFADJ
6
AGND
7
BIP
8
BUSY
9
MAX191
20
CS
19
RD
18
D7/DOUT
17
D6/SCLK
OUT
16
D5/SSTRB
15
D4
14
D3/D11
13
D2/D10
2.46V
REF
12
AIN +
AIN -
3
4
MAX191
7
AGND
12
DGND
IN REF OUT
12-BIT
SAR ADC
2
V
SS
CONTROL
LOGIC
1 22 8
BIP
PD
PAR
20
19
9
21
CS
RD
BUSY
HBEN
D0/D8
10
D1/D9
11
DGND
12
DIP/SO
SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.

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Description Analog to Digital Converters - ADC 12Bit 100ksps 5V Precision ADC Analog to Digital Converters - ADC Low-Power, 12-Bit Sampling ADC with Internal Reference and Power-Down Analog to Digital Converters - ADC 12Bit 100ksps 5V Precision ADC Analog to Digital Converters - ADC 12Bit 100ksps 5V Precision ADC Analog to Digital Converters - ADC 12Bit 100ksps 5V Precision ADC EEPROM 64K 8K x 8 150 ns 4.5V-5.5V Analog to Digital Converters - ADC Low-Power, 12-Bit Sampling ADC with Internal Reference and Power-Down Analog to Digital Converters - ADC Low-Power, 12-Bit Sampling ADC with Internal Reference and Power-Down Analog to Digital Converters - ADC
Product Category Analog to Digital Converters - ADC Analog to Digital Converters - ADC - Analog to Digital Converters - ADC - Analog to Digital Converters - ADC - - Analog to Digital Converters - ADC
Manufacturer Maxim Maxim - Maxim - Maxim - - Maxim
Number of Channels 1 Channel 1 Channel - 1 Channel - 1 Channel - - 1 Channel
Sampling Rate 100 kS/s 100 kS/s - 100 kS/s - 100 kS/s - - 100 kS/s
Input Type Differential Differential - Differential - Differential - - Differential
Interface Type Parallel, Serial, SPI Parallel, Serial, SPI - Serial - Parallel, Serial, SPI - - Parallel, Serial, SPI
Architecture SAR SAR - SAR - SAR - - SAR
Number of Converters 1 Converter 1 Converter - 1 Converter - 1 Converter - - 1 Converter
Operating Supply Voltage +/- 5 V, + 5 V +/- 5 V, + 5 V - +/- 5 V, + 5 V - +/- 5 V, + 5 V - - +/- 5 V, + 5 V
Pd - Power Dissipation 1067 mW 1067 mW - 1067 mW - 1067 mW - - 1067 mW
Product Analog to Digital Converters Analog to Digital Converters - Analog to Digital Converters - Analog to Digital Converters - - Analog to Digital Converters
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