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PDF MAX12553 Data sheet ( Hoja de datos )
| Número de pieza | MAX12553 | |
| Descripción | 14-Bit 65Msps 3.3V ADC | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-3343; Rev 0; 8/04
EVAALVUAAILTAIOBNLEKIT
www.DataSheet4U.com
14-Bit, 65Msps, 3.3V ADC
General Description
The MAX12553 is a 3.3V, 14-bit, 65Msps analog-to-digital
converter (ADC) featuring a fully differential wideband
track-and-hold (T/H) input amplifier, driving a low-noise
internal quantizer. The analog input stage accepts single-
ended or differential signals. The MAX12553 is optimized
for low-power, small size, and high dynamic perfor-
mance. Excellent dynamic performance is maintained
from baseband to input frequencies of 175MHz and
beyond, making the MAX12553 ideal for intermediate-
frequency (IF) sampling applications.
Powered from a single 3.15V to 3.60V supply, the
MAX12553 consumes only 363mW while delivering a
typical signal-to-noise (SNR) performance of 71dB at
an input frequency of 175MHz. In addition to low oper-
ating power, the MAX12553 features a 150µW power-
down mode to conserve power during idle periods.
A flexible reference structure allows the MAX12553 to use
the internal 2.048V bandgap reference or accept an
externally applied reference. The reference structure
allows the full-scale analog input range to be adjusted
from ±0.35V to ±1.10V. The MAX12553 provides a com-
mon-mode reference to simplify design and reduce exter-
nal component count in differential analog input circuits.
The MAX12553 supports both a single-ended and dif-
ferential input clock drive. Wide variations in the clock
duty cycle are compensated with the ADC’s internal
duty-cycle equalizer (DCE).
ADC conversion results are available through a 14-bit,
parallel, CMOS-compatible output bus. The digital out-
put format is pin selectable to be either two’s comple-
ment or Gray code. A data-valid indicator eliminates
external components that are normally required for reli-
able digital interfacing. A separate digital power input
accepts a wide 1.7V to 3.6V supply, allowing the
MAX12553 to interface with various logic levels.
The MAX12553 is available in a 6mm x 6mm x 0.8mm,
40-pin thin QFN package with exposed paddle (EP),
and is specified for the extended industrial (-40°C to
+85°C) temperature range.
See the Pin-Compatible Versions table for a complete
family of 14-bit and 12-bit high-speed ADCs.
Applications
IF and Baseband Communication Receivers
Cellular, Point-to-Point Microwave, HFC, WLAN
Ultrasound and Medical Imaging
Portable Instrumentation
Low-Power Data Acquisition
Features
♦ Direct IF Sampling Up to 400MHz
♦ Excellent Dynamic Performance
74.0dB/71dB SNR at fIN = 3MHz/175MHz
90.6dBc/80.7dBc SFDR at fIN = 3MHz/175MHz
♦ Low Noise Floor: -76dBFS
♦ 3.3V Low-Power Operation
337mW (Single-Ended Clock Mode)
363mW (Differential Clock Mode)
150µW (Power-Down Mode)
♦ Fully Differential or Single-Ended Analog Input
♦ Adjustable Full-Scale Analog Input Range: ±0.35V
to ±1.10V
♦ Common-Mode Reference
♦ CMOS-Compatible Outputs in Two’s Complement
or Gray Code
♦ Data-Valid Indicator Simplifies Digital Interface
♦ Data Out-of-Range Indicator
♦ Miniature, 40-Pin Thin QFN Package with Exposed
Paddle
♦ Evaluation Kit Available (Order MAX12555EVKIT)
Ordering Information
PART
MAX12553ETL
TEMP
RANGE
-40°C to
+85°C
PIN-PACKAGE
40 Thin QFN
(6mm x 6mm x 0.8mm)
PKG
CODE
T4066-3
Pin-Compatible Versions
PART
MAX12553
MAX1209
MAX1211
MAX1208
MAX1207
MAX1206
SAMPLING
RATE (Msps)
65
80
65
80
65
40
RESOLUTION
(BITS)
14
12
12
12
12
12
TARGET
APPLICATION
IF/Baseband
IF
IF
Baseband
Baseband
Baseband
Pin Configuration appears at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1 page  
www.DataSheet4U.com
14-Bit, 65Msps, 3.3V ADC
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 3.3V, OVDD = 2.0V, GND = 0, REFIN = REFOUT (internal reference), VIN = -0.5dBFS, CLKTYP = high, DCE = high, PD = low,
G/T = low, fCLK = 65MHz (50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
Input Resistance
RCLK
Input Capacitance
CCLK
DIGITAL INPUTS (CLKTYP, G/T, PD)
Figure 5
Input High Threshold
VIH
CONDITIONS
MIN TYP
5
2
0.8 x
OVDD
Input Low Threshold
VIL
Input Leakage Current
Input Capacitance
CDIN
DIGITAL OUTPUTS (D13–D0, DAV, DOR)
Output Voltage Low
VOL
Output Voltage High
Tri-State Leakage Current
D13–D0, DOR Tri-State Output
Capacitance
DAV Tri-State Output
Capacitance
POWER REQUIREMENTS
Analog Supply Voltage
VOH
ILEAK
COUT
CDAV
VDD
VIH = OVDD
VIL = 0
D13–D0, DOR, ISINK = 200µA
DAV, ISINK = 600µA
D13–D0, DOR, ISOURCE = 200µA
DAV, ISOURCE = 600µA
(Note 4)
(Note 4)
(Note 4)
5
OVDD -
0.2
OVDD -
0.2
3
6
3.15 3.3
Digital Output Supply Voltage
OVDD
1.7 2.0
Analog Supply Current
IVDD
Normal operating mode,
fIN = 175MHz at -0.5dBFS, CLKTYP = GND,
single-ended clock
Normal operating mode,
fIN = 175MHz at -0.5dBFS,
CLKTYP = OVDD, differential clock
Power-down mode clock idle, PD = OVDD
102
110
0.045
MAX
UNITS
kΩ
pF
0.2 x
OVDD
±5
±5
V
V
µA
pF
0.2
V
0.2
V
±5 µA
pF
pF
3.60
VDD +
0.3V
V
V
mA
123
_______________________________________________________________________________________ 5
5 Page 
www.DataSheet4U.com
14-Bit, 65Msps, 3.3V ADC
Typical Operating Characteristics (continued)
(VDD = 3.3V, OVDD = 2.0V, GND = 0, REFIN = REFOUT (internal reference), VIN = -0.5dBFS, CLKTYP = high, DCE = high, PD = low,
G/T = low, fCLK ≈ 65MHz (50% duty cycle), TA = +25°C, unless otherwise noted.)
REFERENCE OUTPUT VOLTAGE
LOAD REGULATION
2.05
2.04
2.03
2.02
2.01 +85°C
2.00
1.99
1.98 -40°C
1.97 +25°C
1.96
1.95
-2.0
-1.5 -1.0 -0.5
0
IREFOUT SINK CURRENT (mA)
0.5
REFERENCE OUTPUT VOLTAGE
SHORT-CIRCUIT PERFORMANCE
3.5
3.0
2.5 +85°C
2.0
1.5
+25°C
1.0
0.5
0
-3.0
-40°C
-2.0 -1.0
0
IREFOUT SINK CURRENT (mA)
1.0
REFERENCE OUTPUT VOLTAGE
vs. TEMPERATURE
2.039
2.037
2.035
2.033
2.031
2.029
-40
-15 10 35 60
TEMPERATURE (°C)
85
3.0
2.5
2.0
1.5
1.0
0.5
0
-2
REFP, COM, REFN
LOAD REGULATION
VREFP
VREFN
VCOM
INTERNAL REFERENCE
MODE AND BUFFERED EXTERNAL
REFERENCE MODE
-1 0
1
SINK CURRENT (mA)
2
REFP, COM, REFN
SHORT-CIRCUIT PERFORMACE
3.5
3.0
2.5
2.0 VREFP
VCOM
1.5
1.0
0.5
0
-8
VREFN
INTERNAL REFERENCE
MODE AND BUFFERED
EXTERNAL REFERENCE MODE
-4 0 4 8
SINK CURRENT (mA)
12
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet MAX12553.PDF ] | |
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