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MAX1192ETI+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27
General Description
The MAX1192 is an ultra-low-power, dual, 8-bit, 22Msps
analog-to-digital converter (ADC). The device features
two fully differential wideband track-and-hold (T/H) inputs.
These inputs have a 440MHz bandwidth and accept fully
differential or single-ended signals. The MAX1192 deliv-
ers a typical signal-to-noise and distortion (SINAD) of
48.6dB at an input frequency of 5.5MHz and a sampling
rate of 22Msps while consuming only 27.3mW. This ADC
operates from a 2.7V to 3.6V analog power supply. A sep-
arate 1.8V to 3.6V supply powers the digital output driver.
In addition to ultra-low operating power, the MAX1192
features three power-down modes to conserve power
during idle periods. Excellent dynamic performance,
ultra-low power, and small size make the MAX1192 ideal
for applications in imaging, instrumentation, and digital
communications.
An internal 1.024V precision bandgap reference sets
the full-scale range of the ADC to ±0.512V. A flexible
reference structure allows the MAX1192 to use its inter-
nal reference or accept an externally applied reference
for applications requiring increased accuracy.
The MAX1192 features parallel, multiplexed, CMOS-
compatible tri-state outputs. The digital output format is
offset binary. A separate digital power input accepts a
voltage from 1.8V to 3.6V for flexible interfacing to dif-
ferent logic levels. The MAX1192 is available in a 5mm
× 5mm, 28-pin thin QFN package, and is specified for
the extended industrial (-40°C to +85°C) temperature
range.
For higher sampling frequency applications, refer to the
MAX1195–MAX1198 dual 8-bit ADCs. Pin-compatible
versions of the MAX1192 are also available. Refer to the
MAX1191 data sheet for 7.5Msps, and the MAX1193
data sheet for 45Msps.
Applications
Ultrasound and Medical Imaging
IQ Baseband Sampling
Battery-Powered Portable Instruments
Low-Power Video
WLAN, Mobile DSL, WLL Receiver
Features
o Ultra-Low Power
27.3mW (Normal Operation: 22Msps)
1.8µW (Shutdown Mode)
o Excellent Dynamic Performance
48.6dB/47.2dB SNR at f
IN
= 5.5MHz/125MHz
70dBc/69dBc SFDR at f
IN
= 5.5MHz/125MHz
o 2.7V to 3.6V Single Analog Supply
o 1.8V to 3.6V TTL/CMOS-Compatible Digital
Outputs
o Fully Differential or Single-Ended Analog Inputs
o Internal/External Reference Option
o Multiplexed CMOS-Compatible Tri-State Outputs
o 28-Pin Thin QFN Package
o Evaluation Kit Available (Order MAX1193EVKIT)
MAX1192
Ultra-Low-Power, 22Msps, Dual 8-Bit ADC
________________________________________________________________
Maxim Integrated Products
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MAX1192
5mm x 5mm THIN QFN
TOP VIEW
PD0
EXPOSED PADDLE
PD1
REFIN
COM
REFN
REFP
V
DD
INA+
INA-
GND
CLK
GND
INB+
INB-
V
DD
V
DD
GND
OGND
OV
DD
D7
D6
D0
D1
D2
D3
A/B
D4
D5
Pin Configuration
Ordering Information
19-2835; Rev 2; 7/09
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.
PART TEMP RANGE PIN-PACKAGE
MAX1192ETI-T -40°C to +85°C 28 Thin QFN-EP*
-
Denotes a package containing lead(Pb).
*EP = Exposed paddle.
T = Tape and reel.
MAX1192
Ultra-Low-Power, 22Msps, Dual 8-Bit ADC
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= 3.0V, OV
DD
= 1.8V, V
REFIN
= V
DD
(internal reference), C
L
≈ 10pF at digital outputs, f
CLK
= 22MHz, C
REFP
= C
REFN
= C
COM
=
0.33µF, 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
, OV
DD
to GND ...............................................-0.3V to +3.6V
OGND to GND.......................................................-0.3V to +0.3V
INA+, INA-, INB+, INB- to GND .................-0.3V to (V
DD
+ 0.3V)
CLK, REFIN, REFP, REFN, COM to GND ...-0.3V to (V
DD
+ 0.3V)
PD0, PD1 to OGND .................................-0.3V to (OV
DD
+ 0.3V)
Digital Outputs to OGND.........................-0.3V to (OV
DD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
28-Pin Thin QFN (derated 20.8mW/°C above +70°C) ..1667mW
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
UNITS
DC ACCURACY
Resolution 8 Bits
Integral Nonlinearity INL
±0.15 ±1.00
LSB
Differential Nonlinearity DNL No missing codes over temperature
±0.14 ±1.00
LSB
≥ +25°C ±4
Offset Error
< +25°C ±6
%FS
Gain Error Excludes REFP - REFN error ±2
%FS
DC Gain Matching
±0.01 ±0.2
dB
Gain Temperature Coefficient ±30
ppm/°C
Offset (V
DD
±5%)
±0.02
Power-Supply Rejection
Gain (V
DD
±5%)
±0.05
LSB
ANALOG INPUT
Differential Input Voltage Range
V
DIFF
Differential or single-ended inputs
±0.512
V
Common-Mode Input Voltage
Range
V
COM
V
DD
/
2
V
Input Resistance R
IN
Switched capacitor load 245 kΩ
Input Capacitance C
IN
5pF
CONVERSION RATE
Clock Frequency Range f
CLK
7.5 22
MHz
Channel A 5.0
Data Latency
Channel B 5.5
Clock
cycles
DYNAMIC CHARACTERISTICS (differential inputs, 4096-point FFT)
f
IN
= 1.875MHz 48.6
f
IN
= 5.5MHz 47 48.6
Signal-to-Noise Ratio
(Note 2)
SNR
f
IN
= 11MHz 48.6
dB
f
IN
= 1.875MHz 48.7
f
IN
= 5.5MHz 47 48.6
Signal-to-Noise and Distortion
(Note 2)
SINAD
f
IN
= 11MHz 48.6
dB
MAX1192
Ultra-Low-Power, 22Msps, Dual 8-Bit ADC
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 3.0V, OV
DD
= 1.8V, V
REFIN
= V
DD
(internal reference), C
L
≈ 10pF at digital outputs, f
CLK
= 22MHz, C
REFP
= C
REFN
= C
COM
=
0.33µF, 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
= 1.875MHz 70.8
f
IN
= 5.5MHz 59.0 70.0
Spurious-Free Dynamic Range
(Note 2)
SFDR
f
IN
= 11MHz 70.4
dBc
f
IN
= 1.875MHz 75.8
f
IN
= 5.5MHz
-74.0
Thi r d - H ar m oni c D i stor ti on
( N ote 2)
HD3
f
IN
= 11MHz
-74.8
dBc
Intermodulation Distortion IMD
f
IN1
= 1MHz at -7dB FS, f
IN2
= 1.01MHz at
-7dB FS
-64
dBc
Third-Order Intermodulation IM3
f
IN1
= 1MHz at -7dB FS, f
IN2
= 1.01MHz at
-7dB FS
-67
dBc
f
IN
= 1.875MHz
-71.0
f
IN
= 5.5MHz
-70.0 -57.0
Total Harmonic Distortion
(Note 2)
THD
f
IN
= 11MHz
-70.2
dBc
Small-Signal Bandwidth
SSBW
Input at -20dB FS 440
MHz
Full-Power Bandwidth
FPBW
Input at -0.5dB FS 440
MHz
Aperture Delay t
AD
1.5 ns
Aperture Jitter t
AJ
2
ps
RMS
Overdrive Recovery Time 1.5 × full-scale input 2 ns
INTERNAL REFERENCE (REFIN = V
DD
; V
REFP
, V
REFN
, and V
COM
are generated internally)
REFP Output Voltage V
REFP
- V
COM
0.256
V
REFN Output Voltage V
REFN
- V
COM
-0.256
V
COM Output Voltage
V
COM
V
DD
/ 2
- 0.15
V
DD
/ 2
V
DD
/ 2
+ 0.15
V
Differential Reference Output
V
REF
V
REFP
- V
REFN
0.512
V
Differential Reference Output
Temperature Coefficient
V
REFTC
±30
ppm/°C
Maximum REFP/REFN/COM
Source Current
I
SOURCE
2mA
Maximum REFP/REFN/COM Sink
Current
I
SINK
2mA
BUFFERED EXTERNAL REFERENCE (V
REFIN
= 1.024V, V
REFP
, V
REFN
, and V
COM
are generated internally)
REFIN Input Voltage
V
REFIN
1.024
V
COM Output Voltage
V
COM
V
DD
/ 2
- 0.15
V
DD
/ 2
V
DD
/ 2
+ 0.15
V
Differential Reference Output
V
REF
V
REFP
- V
REFN
0.512
V
Maximum REFP/REFN/COM
Source Current
I
SOURCE
2mA
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27

MAX1192ETI+T

Mfr. #:
Buy MAX1192ETI+T
Manufacturer:
Maxim Integrated
Description:
Analog to Digital Converters - ADC 8-Bit 2Ch 22Msps 3.6V Precision ADC
Lifecycle:
New from this manufacturer.
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