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MAX1209ETL+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27
General Description
The MAX1209 is a 3.3V, 12-bit, 80Msps 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 sin-
gle-ended or differential signals. The MAX1209 is opti-
mized for low power, small size, and high dynamic
performance. Excellent dynamic performance is main-
tained from baseband to input frequencies of 175MHz
and beyond, making the MAX1209 ideal for intermediate-
frequency (IF) sampling applications.
Powered from a single 3.0V to 3.6V supply, the
MAX1209 consumes only 366mW while delivering a
typical signal-to-noise (SNR) performance of 66.5dB at
an input frequency of 175MHz. In addition to low oper-
ating power, the MAX1209 features a 3µW power-down
mode to conserve power during idle periods.
A flexible reference structure allows the MAX1209 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 ±1.15V. The MAX1209 provides a com-
mon-mode reference to simplify design and reduce exter-
nal component count in differential analog input circuits.
The MAX1209 supports both a single-ended and differ-
ential 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 12-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
MAX1209 to interface with various logic levels.
The MAX1209 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 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
68.0dB/66.5dB SNR at f
IN
= 70MHz/175MHz
85.1dBc/85.5dBc SFDR at f
IN
= 70MHz/175MHz
♦ 3.3V Low-Power Operation
366mW (Single-Ended Clock Mode)
393mW (Differential Clock Mode)
3µW (Power-Down Mode)
♦ Differential or Single-Ended Clock
♦ Fully Differential or Single-Ended Analog Input
♦ Adjustable Full-Scale Analog Input Range: ±0.35V
to ±1.15V
♦ Common-Mode Reference
♦ CMOS-Compatible Outputs in Two’s Complement
or Gray Code
♦ Data-Valid Indicator Simplifies Digital Design
♦ Data Out-of-Range Indicator
♦ Miniature, 40-Pin Thin QFN Package with Exposed
Paddle
♦ Evaluation Kit Available (Order MAX1211EVKIT)
MAX1209
12-Bit, 80Msps, 3.3V IF-Sampling ADC
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-1001; Rev 0; 8/04
PART
TEMP
RANGE
PIN-PACKAGE
PKG
CODE
MAX1209ETL
-40°C to
+85°C
40 Thin QFN
(6mm x 6mm x 0.8mm)
T4066-3
Pin-Compatible Versions
PART
SAMPLING
RATE (Msps)
RESOLUTION
(BITS)
TARGET
APPLICATION
MAX12553
65 14
IF/Baseband
MAX1209
80 12 IF
MAX1211
65 12 IF
MAX1208
80 12 Baseband
MAX1207
65 12 Baseband
MAX1206
40 12 Baseband
Pin Configuration appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
MAX1209
12-Bit, 80Msps, 3.3V IF-Sampling ADC
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= 3.3V, OV
DD
= 2.0V, GND = 0, REFIN = REFOUT (internal reference), V
IN
= -0.5dBFS, CLKTYP = high, DCE = high, PD = low,
G/
T = low, f
CLK
= 80MHz (50% duty cycle), T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
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.
V
DD
to GND...........................................................-0.3V to +3.6V
OV
DD
to GND........-0.3V to the lower of (V
DD
+ 0.3V) and +3.6V
INP, INN to GND ...-0.3V to the lower of (V
DD
+ 0.3V) and +3.6V
REFIN, REFOUT, REFP, REFN, COM
to GND................-0.3V to the lower of (V
DD
+ 0.3V) and +3.6V
CLKP, CLKN, CLKTYP, G/T, DCE,
PD to GND ........-0.3V to the lower of (V
DD
+ 0.3V) and +3.6V
D11 Through D0, I.C. DAV, DOR to GND ...-0.3V to (OV
DD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
40-Pin Thin QFN 6mm x 6mm x 0.8mm
(derated 26.3mW/°C above +70°C)........................2105.3mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering 10s) ..................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
DC ACCURACY (Note 2)
Resolution 12 Bits
Integral Nonlinearity INL f
IN
= 3MHz
±0.6
LSB
Differential Nonlinearity DNL
f
IN
= 3MHz, no missing codes over
temperature
-0.77 ±0.35
LSB
Offset Error V
REFIN
= 2.048V
±0.17 ±0.91
Gain Error V
REFIN
= 2.048V
±0.56 ±5.3
ANALOG INPUT (INP, INN)
Differential Input Voltage Range V
DIFF
Differential or single-ended inputs
±1.024
V
Common-Mode Input Voltage
V
DD
/ 2
V
C
PAR
Fixed capacitance to ground 2
Input Capacitance
(Figure 3)
C
SAMPLE
Switched capacitance 1.9
pF
CONVERSION RATE
Maximum Clock Frequency f
CLK
80
Minimum Clock Frequency 5
Data Latency Figure 6 8.5
DYNAMIC CHARACTERISTICS (differential inputs, Note 2)
Small-Signal Noise Floor SSNF Input at less than -35dBFS
-68.8
f
IN
= 70MHz at -0.5dBFS 68.0
f
IN
= 100MHz at -0.5dBFS 67.7Signal-to-Noise Ratio SNR
f
IN
= 175MHz at -0.5dBFS (Note 6)
64.5
66.5
dB
f
IN
= 70MHz at -0.5dBFS 67.8
f
IN
= 100MHz at -0.5dBFS 67.6
Signal-to-Noise and Distortion SINAD
f
IN
= 175MHz at -0.5dBFS (Note 6)
64.3
66.4
dB
MAX1209
12-Bit, 80Msps, 3.3V IF-Sampling ADC
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 3.3V, OV
DD
= 2.0V, GND = 0, REFIN = REFOUT (internal reference), V
IN
= -0.5dBFS, CLKTYP = high, DCE = high, PD = low,
G/T = low, f
CLK
= 80MHz (50% duty cycle), T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
f
IN
= 70MHz at -0.5dBFS 85.1
f
IN
= 100MHz at -0.5dBFS 86.2
Spurious-Free Dynamic Range SFDR
f
IN
= 175MHz at -0.5dBFS (Note 6)
74.6
85.5
dBc
f
IN
= 70MHz at -0.5dBFS
-81.2
f
IN
= 100MHz at -0.5dBFS
-82.3
Total Harmonic Distortion THD
f
IN
= 175MHz at -0.5dBFS
-82.7 -73.9
dBc
f
IN
= 70MHz at -0.5dBFS
-86.5
f
IN
= 100MHz at -0.5dBFS
-89.6
Second Harmonic HD2
f
IN
= 175MHz at -0.5dBFS -89
dBc
f
IN
= 70MHz at -0.5dBFS
-85.1
f
IN
= 100MHz at -0.5dBFS
-86.5
Third Harmonic HD3
f
IN
= 175MHz at -0.5dBFS
-88.6
dBc
f
IN1
= 68.5MHz at -7dBFS,
f
IN2
= 71.5MHz at -7dBFS
-82.4
Intermodulation Distortion IMD
f
IN1
= 172.5MHz at -7dBFS,
f
IN2
= 177.5MHz at -7dBFS
-74.2
dBc
f
IN1
= 68.5MHz at -7dBFS,
f
IN2
= 71.5MHz at -7dBFS
-86.4
Third-Order Intermodulation IM3
f
IN1
= 172.5MHz at -7dBFS,
f
IN2
= 177.5MHz at -7dBFS
-86.1
dBc
f
IN1
= 68.5MHz at -7dBFS,
f
IN2
= 71.5MHz at -7dBFS
85.1
Two-Tone Spurious-Free
Dynamic Range
SFDR
TT
f
IN1
= 172.5MHz at -7dBFS,
f
IN2
= 177.5MHz at -7dBFS
74.2
dBc
Full-Power Bandwidth FPBW Input at -0.5dBFS, -3dB roll-off 700
MHz
Aperture Delay t
AD
Figure 4 0.9 ns
Aperture Jitter t
AJ
Figure 4 <0.2
ps
RMS
Output Noise n
OUT
INP = INN = COM 0.52
LSB
RMS
Overdrive Recovery Time ±10% beyond full scale 1
Clock
cycles
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27

MAX1209ETL+T

Mfr. #:
Buy MAX1209ETL+T
Manufacturer:
Maxim Integrated
Description:
Analog to Digital Converters - ADC 12-Bit, 80Msps, 3.3V IF-Sampling ADC
Lifecycle:
New from this manufacturer.
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