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PDF MAX1171 Data sheet ( Hoja de datos )
| Número de pieza | MAX1171 | |
| Descripción | 12-Bit / 20Msps / TTL-Output ADC | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX1171 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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19-1133; Rev 0; 10/96
EVAALVUAAILTAIOBNLEKIT
12-Bit, 20Msps, TTL-Output ADC
_________________General Description
The MAX1171 analog-to-digital converter (ADC) is a
12-bit monolithic ADC capable of sample rates greater
than 20Msps. An on-board input buffer and track/hold
function ensure excellent dynamic performance without
the need for external components. A 5pF input capaci-
tance minimizes development problems.
Logic inputs and outputs are TTL compatible. An over-
range output signal is provided to indicate overflow
conditions. Output data format is straight binary. Power
dissipation is a very low 1.1W with power-supply volt-
ages of +5.0V and -5.2V. The MAX1171 also provides a
wide input voltage range of ±2.0V.
The MAX1171 is available in a 32-lead ceramic side-
brazed package and a 44-lead surface-mount CERQUAD
package.
_________________________Applications
Radar Receivers
Professional Video
Instrumentation
Imaging
Digital Communications
Digital Spectrum Analyzers
_____________________________Features
o Monolithic, 12-Bit, 20Msps Converter
o On-Chip Track/Hold
o ±2.0V Analog Input Range
o 66dB SNR at 1MHz Input
o Low Power: 1.1W
o 5pF Input Capacitance
o TTL-Compatible Outputs
________________Ordering Information
PART
MAX1171CDJ
MAX1171CBH
TEMP. RANGE
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
32 Ceramic SB
44 CERQUAD
___________________Pin Configurations
TOP VIEW
________________Functional Diagram
VIN
INPUT
BUFFER
ANALOG GAIN
COMPRESSION
PROCESSOR
4-BIT FLASH CONVERTER
4
TRACK/
HOLD
AMPLIFIERS
ASYNCHRONOUS
8-BIT SAR 8
ERROR
CORRECTION,
DIGITAL
OUTPUT
DECODING
AND 12
OUTPUT TLL
DRIVERS
D2 1
D3 2
D4 3
D5 4
D6 5
D7 6
D8 7
D9 8
D10 9
D11 10
N.C. 11
MAX1171
33 N.C.
32 VFB
31 VSB
30 VRT1
29 VRT2
28 VIN
27 VRT3
26 VST
25 VFT
24 N.C.
23 VCC
CERQUAD
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
1 page  
12-Bit, 20Msps, TTL-Output ADC
__________________________________________Typical Operating Characteristics
(fS = 20Msps, fIN = 1MHz, TA = +25°C, unless otherwise noted.)
80
70
60
50
40
30
20
0.1
SIGNAL-TO-NOISE RATIO
vs. INPUT FREQUENCY
1
INPUT FREQUENCY (MHz)
10
TOTAL HARMONIC DISTORTION
vs. INPUT FREQUENCY
80
70
60
50
40
30
20
0.1
1
INPUT FREQUENCY (MHz)
10
SNR, THD, SINAD vs. SAMPLE RATE
80
70 SNR, THD
60 SINAD
50
40
30
20
1
10
SAMPLE RATE (Msps)
100
SIGNAL-TO-NOISE AND DISTORTION
vs. INPUT FREQUENCY
80
70
60
50
40
30
20
0.1
1
INPUT FREQUENCY (MHz)
10
SPECTRAL RESPONSE
0
-30
-60
-90
-120
0
12 3 4
FREQUENCY (MHz)
5
SNR, THD, SINAD vs. TEMPERATURE
75
70
SNR
65
THD
60 SINAD
55
50
-25
0 25
50
TEMPERATURE (°C)
75
_______________________________________________________________________________________ 5
5 Page 
12-Bit, 20Msps, TTL-Output ADC
Overrange Output
The overrange output (D12) is an indication that the an-
alog input signal has exceeded the full-scale input volt-
age by 1LSB. When this condition occurs, the outputs
will switch to logic 1s. All other data outputs are unaf-
fected by this operation. This feature makes it possible
to include the MAX1171 in higher resolution systems.
Evaluation Board
The MAX1170 evaluation kit (EV kit) is available to aid
designers in demonstrating the full performance of the
MAX1171 (or of the MAX1170/MAX1172). This board
includes a reference circuit, clock driver circuit, output
data latches, and on-board reconstruction of the digital
data. A separate EV kit manual describing the opera-
tion of this board is available. Contact the factory for
price and availability.
_____Pin Configurations (continued)
TOP VIEW
DGND 1
D0 2
D1 3
D2 4
D3 5
D4 6
D5 7
D6 8
D7 9
D8 10
D9 11
D10 12
D11 13
D12 14
DGND 15
DVCC 16
MAX1171
32 DVCC
31 VEE
30 AGND
29 VCC
28 VFB
27 VSB
26 VRT1
25 VRT2
24 VIN
23 VRT3
22 VST
21 VFT
20 VCC
19 AGND
18 VEE
17 CLK
Ceramic SB
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX1171.PDF ] | |
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