MAX195 Maxim, MAX195 Datasheet
MAX195
Manufacturer Part Number
MAX195
Description
16-Bit / 85ksps ADC with 10A Shutdown
Manufacturer
Maxim
Datasheet
1.MAX195.pdf
(28 pages)
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The MAX195 is a 16-bit successive-approximation ana-
log-to-digital converter (ADC) that combines high
speed, high accuracy, low power consumption, and a
10µA shutdown mode. Internal calibration circuitry cor-
rects linearity and offset errors to maintain the full rated
performance over the operating temperature range with-
out external adjustments. The capacitive-DAC architec-
ture provides an inherent 85ksps track/hold function.
The MAX195, with an external reference (up to +5V),
offers a unipolar (0V to V
pin-selectable input range. Separate analog and digital
supplies minimize digital-noise coupling.
The chip select (CS) input controls the three-state serial-
data output. The output can be read either during conver-
sion as the bits are determined, or following conversion at
up to 5Mbps using the serial clock (SCLK). The end-of-
conversion (EOC) output can be used to interrupt a
processor, or can be connected directly to the convert
input (CONV) for continuous, full-speed conversions.
The MAX195 is available in 16-pin DIP, wide SO, and
ceramic sidebraze packages.
________________________Applications
19-0377; Rev 1; 12/97
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.
_______________General Description
__________________Pin Configuration
TOP VIEW
Portable Instruments
Audio
Industrial Controls
Robotics
Multiple Transducer Measurements
Medical Signal Acquisition
Vibrations Analysis
Digital Signal Processing
BP/UP/SHDN
DGND
VDDD
DOUT
SCLK
EOC
CLK
CS
DIP/Wide SO/Ceramic SB
________________________________________________________________ Maxim Integrated Products
16-Bit, 85ksps ADC with 10µA Shutdown
1
2
3
4
5
6
7
8
MAX195
REF
) or bipolar (-V
16
15
14
13
12
11
10
9
VDDA
VSSA
AGND
VSSD
RESET
CONV
AIN
REF
REF
to V
REF
)
____________________________Features
*
** Contact factory for availability and processing to MIL-STD-883.
________________Functional Diagram
BP/UP/SHDN
______________Ordering Information
MAX195BCPE
MAX195BCWE
MAX195ACDE
MAX195BC/D
MAX195BEPE
MAX195BEWE
MAX195AEDE
MAX195AMDE
MAX195BMDE
Dice are specified at T
16 Bits, No Missing Codes
90dB SINAD
9.4µs Conversion Time
10µA (max) Shutdown Mode
Built-In Track/Hold
AC and DC Specified
Unipolar (0V to V
Input Range
Three-State Serial-Data Output
Small 16-Pin DIP, SO, and Ceramic SB Packages
RESET
CONV
PART
SCLK
CLK
REF
AIN
CS
13
12
10
2
3
9
1
8
SAR
CONTROL LOGIC
-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
MAIN DAC
TEMP. RANGE
REF
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
A
CALIBRATION
= +25°C, DC parameters only.
) and Bipolar (-V
DACs
THREE-STATE BUFFER
MAX195
COMPARATOR
16 Plastic DIP
16 Wide SO
16 Ceramic SB
Dice*
16 Plastic DIP
16 Wide SO
16 Ceramic SB
16 Ceramic SB**
16 Ceramic SB**
PIN-PACKAGE
REF
to V
4
6
11
16
14
15
5
7
REF
VDDD
DGND
VSSD
VDDA
AGND
VSSA
DOUT
EOC
)
1
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