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Maxim Integrated Semiconductor Electronic Components Datasheet


MAX1101

Single-Chip / 8-Bit CCD Digitizer with Clamp and 6-Bit PGA


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MAX1101 pdf
19-1166; Rev 0; 12/96
Single-Chip, 8-Bit CCD Digitizer
with Clamp and 6-Bit PGA
_______________General Description
The MAX1101 is a highly integrated IC designed pri-
marily for digitizing the output of a linear CCD array. It
provides the components required for all necessary
analog functions, including clamp circuitry for black-
level correction or correlated double sampling (CDS), a
three-input multiplexer (mux), and an 8-bit analog-to-
digital converter (ADC).
The MAX1101 operates with a sample rate up to 1MHz
and with a wide range of linear CCDs. The logic inter-
face is serial, and a single input sets the bidirectional
data line as either data in or data out, thus minimizing
the I/O pins required for communication.
Packaged in a 24-pin SO, the MAX1101 is available in
the commercial (0°C to +70°C) temperature range.
____________________________Features
o 1.0 Million Pixels/sec Conversion Rate
o Built-In Clamp Circuitry for Black-Level
Correction or Correlated Double Sampling
o 64-Step PGA, Programmable from Gain = -2 to -10
o Auxiliary Mux Inputs for Added Versatility
o Compatible with a Large Range of CCDs
o 8-Bit ADC Included
o Space-Saving, 24-Pin SO Package
________________________Applications
Scanners
Fax Machines
Digital Copiers
CCD Imaging
______________Ordering Information
PART
MAX1101CWG
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
24 Wide SO
Pin Configuration appears on last page.
___________________________________________________Typical Operating Circuit
CCD
ARRAY
CEXT
0.047µF
0.1µF
12
AUXILIARY
ANALOG INPUTS
1 GND
GND 24
2 CCDIN
3
GND
4 AIN1
5 GND
MAX1101 VDD 23
22
CLAMP
VIDSAMP 21
20
LOAD
6 AIN2
7 GND
11 REFGND
DATA
SCLK
MODE
GND
VDD
REFBIAS
19
18
17
16
15
14
12
REF-
13
REF+
0.1µF
+5V DC (SUPPLY)
µP/µC/
STATE LOGIC
+5V DC (REFERENCE)
0.1µF
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800



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MAX1101 pdf
Single-Chip, 8-Bit CCD Digitizer
with Clamp and 6-Bit PGA
ABSOLUTE MAXIMUM RATINGS
VDD to GND ............................................................-0.3V to +12V
All Pins to GND...........................................-0.3V to (VDD + 0.3V)
Current into Every Pin (except VDD) .................................±20mA
Current into VDD ...............................................................±50mA
Continuous Power Dissipation (TA = +70°C)
SO (derate 11.76mW/°C above +70°C) ......................941mW
Operating Temperature Range...............................0°C to +70°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = VREFBIAS = +4.75V to +5.25V, REFGND = 0V, REF- bypassed to REFGND with 0.1µF, CEXT = 47nF, TA = TMIN to TMAX,
unless otherwise noted.)
PARAMETER
SYMBOL
ANALOG-TO-DIGITAL CONVERTER
Resolution
N
Differential Nonlinearity
DNL
Integral Nonlinearity
Total Unadjusted Error
Zero-Scale Drift
Full-Scale Drift
Maximum Sample Rate
Minimum Sample Rate
INL
TUE
TCVOS
TCFS
fs
Input Full-Power Bandwidth
Aperture Delay
ANALOG INPUT—CCD INTERFACE
tAP
Maximum Peak CCD
Differential Signal Range
VWHITE
Minimum PGA Gain Setting
Maximum PGA Gain Setting
Gain Adjust Resolution
Gain Adjust Step Size
PGA Gain Error
Black Sample Switch On-Resistance RON(BSS)
Input Leakage (Note 2)
IL(CCDIN)
CONDITIONS
No-missing-codes guaranteed
Best straight-line fit
(Note 1)
VIN = 2.5Vp-p
VWHITE =
(VREF+ - VREF-) / GPGA
GPGA = -2
GPGA = -10
Including black sample switch off-leakage
MIN TYP MAX UNITS
8 Bits
±0.5 ±1 LSB
±1 ±1.5 LSB
±2.5 LSB
125 %µV/°C
0.016
%FS/°C
0.67 1.2
MHz
1 kHz
1 MHz
10 ns
-1.9
-9.375
1.25
0.25
-2
-9.875
64
0.125
±5
60
1
V
-2.1 V/V
-10.375 V/V
Steps
V/V
% Gain
150
50 nA
CCD Interface Offset Voltage
VOS(CCD) VVIDEO = VRESET (Figure 4)
0 4 8 LSB
ANALOG INPUT—AUXILIARY INPUTS
Input Voltage Range
VIN
Input Capacitance (Note 1)
CIN(ON)
CIN(OFF)
On-Resistance
RON
Channel on
Channel off
VREF-
VREF+
V
45
pF
10
120
2 _______________________________________________________________________________________



Part Number MAX1101
Description Single-Chip / 8-Bit CCD Digitizer with Clamp and 6-Bit PGA
Maker Maxim - Maxim
Total Page 12 Pages
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