19-1133; Rev 0; 10/96
KIT
ATION
EVALU
BLE
AVAILA
12-Bit, 20Msps, TTL-Output ADC
_____________________________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
_________________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.
MAX1171
________________Ordering Information
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
32 Ceramic SB
44 CERQUAD
_________________________Applications
Radar Receivers
Professional Video
Instrumentation
Imaging
Digital Communications
Digital Spectrum Analyzers
MAX1171CDJ
MAX1171CBH
___________________Pin Configurations
D1
D0
N.C.
DGND
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
N.C.
1
2
3
4
5
6
7
8
9
10
11
DV
CC
V
EE
N.C.
AGND
N.C.
V
CC
N.C.
TOP VIEW
N.C.
VFB
VSB
VRT1
VRT2
VIN
VRT3
VST
VFT
N.C.
V
CC
________________Functional Diagram
MAX1171
V
IN
INPUT
BUFFER
4-BIT FLASH CONVERTER
4
DIGITAL
ERROR
OUTPUT
CORRECTION,
DECODING
12
AND
OUTPUT TLL
DRIVERS
12
13
14
15
16
17
18
19
20
21
N.C.
D12
DGND
DV
CC
ANALOG GAIN
COMPRESSION
PROCESSOR
TRACK/
HOLD
AMPLIFIERS
ASYNCHRONOUS
8-BIT SAR
8
CERQUAD
Pin Configurations continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
N.C.
CLK
N.C.
V
EE
N.C.
AGND
N.C.
22
1
For the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
