MAX1192ETI+ Maxim Integrated Products, MAX1192ETI+ Datasheet

IC ADC 8BIT 22MSPS DUAL 28-TQFN

MAX1192ETI+

Manufacturer Part Number
MAX1192ETI+
Description
IC ADC 8BIT 22MSPS DUAL 28-TQFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1192ETI+

Number Of Bits
8
Sampling Rate (per Second)
22M
Data Interface
Parallel
Number Of Converters
2
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-WFQFN Exposed Pad
Number Of Adc Inputs
2
Conversion Rate
22 MSPs
Resolution
8 bit
Input Type
Differential
Interface Type
Parallel
Voltage Reference
Internal 2.048 V or External
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Maximum Power Dissipation
1667 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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.
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.
Ultrasound and Medical Imaging
IQ Baseband Sampling
Battery-Powered Portable Instruments
Low-Power Video
WLAN, Mobile DSL, WLL Receiver
Ultra-Low-Power, 22Msps, Dual 8-Bit ADC
________________________________________________________________ Maxim Integrated Products
General Description
Applications
o Ultra-Low Power
o Excellent Dynamic Performance
o 2.7V to 3.6V Single Analog Supply
o 1.8V to 3.6V TTL/CMOS-Compatible Digital
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)
- Denotes a package containing lead(Pb).
*EP = Exposed paddle.
T = Tape and reel.
MAX1192ETI-T
Outputs
TOP VIEW
27.3mW (Normal Operation: 22Msps)
1.8µW (Shutdown Mode)
48.6dB/47.2dB SNR at f
70dBc/69dBc SFDR at f
PART
REFIN
REFN
REFP
COM
PD1
PD0
V
DD
22
23
24
25
26
27
28
5mm x 5mm THIN QFN
-40°C to +85°C
TEMP RANGE
EXPOSED PADDLE
Ordering Information
MAX1192
Pin Configuration
IN
IN
= 5.5MHz/125MHz
= 5.5MHz/125MHz
PIN-PACKAGE
28 Thin QFN-EP*
Features
14
13
12
11
10
9
8
1

Related parts for MAX1192ETI+

MAX1192ETI+ Summary of contents

Page 1

... Ultrasound and Medical Imaging IQ Baseband Sampling Battery-Powered Portable Instruments Low-Power Video WLAN, Mobile DSL, WLL Receiver ________________________________________________________________ Maxim Integrated Products 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. o Ultra-Low Power 27.3mW (Normal Operation: 22Msps) 1.8µ ...

Page 2

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC ABSOLUTE MAXIMUM RATINGS GND ...............................................-0.3V to +3. OGND to GND.......................................................-0.3V to +0.3V INA+, INA-, INB+, INB- to GND .................-0. CLK, REFIN, REFP, REFN, COM to GND ...-0.3V ...

Page 3

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC ELECTRICAL CHARACTERISTICS (continued 3.0V 1.8V REFIN DD 0.33µ -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Spurious-Free Dynamic ...

Page 4

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC ELECTRICAL CHARACTERISTICS (continued 3.0V 1.8V REFIN DD 0.33µ -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Maximum REFP/REFN/COM ...

Page 5

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC ELECTRICAL CHARACTERISTICS (continued 3.0V 1.8V REFIN DD 0.33µ -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL POWER REQUIREMENTS ...

Page 6

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC ELECTRICAL CHARACTERISTICS (continued 3.0V 1.8V REFIN DD 0.33µ -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL TIMING CHARACTERISTICS ...

Page 7

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC (V = 3.0V 1.8V REFIN 22.005678MHz at 50% duty cycle +25°C, unless otherwise noted.) A FFT PLOT CHANNEL A (DIFFERENTIAL INPUTS, 8192-POINT DATA RECORD ...

Page 8

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC (V = 3.0V 1.8V REFIN 22.005678MHz at 50% duty cycle +25°C, unless otherwise noted.) A FFT PLOT CHANNEL A (SINGLE-ENDED INPUTS, 8192-POINT DATA RECORD) 0 -10 ...

Page 9

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC (V = 3.0V 1.8V REFIN 22.005678MHz at 50% duty cycle +25°C, unless otherwise noted.) A SIGNAL-TO-NOISE RATIO vs. ANALOG INPUT FREQUENCY 50.0 49.5 49.0 48.5 48.0 ...

Page 10

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC (V = 3.0V 1.8V REFIN 22.005678MHz at 50% duty cycle +25°C, unless otherwise noted.) A SIGNAL-TO-NOISE RATIO vs. ANALOG INPUT POWER 5.512345MHz IN ...

Page 11

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC (V = 3.0V 1.8V REFIN 22.005678MHz at 50% duty cycle +25°C, unless otherwise noted.) A SIGNAL-TO-NOISE RATIO vs. SAMPLING RATE 5.512345MHz IN 49 ...

Page 12

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC (V = 3.0V 1.8V REFIN 22.005678MHz at 50% duty cycle +25°C, unless otherwise noted.) A SIGNAL-TO-NOISE RATIO vs. CLOCK DUTY CYCLE 5.512345MHz IN ...

Page 13

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC (V = 3.0V 1.8V REFIN 22.005678MHz at 50% duty cycle +25°C, unless otherwise noted.) A INTEGRAL NONLINEARITY 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 ...

Page 14

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC (V = 3.0V 1.8V REFIN 22.005678MHz at 50% duty cycle +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. INPUT FREQUENCY 3.0 2.5 DIGITAL SUPPLY CURRENT 2.0 ...

Page 15

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC PIN NAME 23 PD0 Power-Down Digital Input 0. See Table 3. 24 REFIN Reference Input. Internally pulled COM Common-Mode Voltage I/O. Bypass COM to GND with a 0.33µF capacitor. Negative Reference ...

Page 16

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC S4a INA+ S4c INA- S4b S4a INB+ S4c INB- S4b Figure 3. Internal T/H Circuits Input Track-and-Hold (T/H) Circuits Figure 3 displays a simplified functional diagram of the input T/H circuits. In track mode, switches ...

Page 17

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC Table 1. Reference Modes V REFIN Internal reference mode. V >0 each with a 0.33µF capacitor. Buffered external reference mode. An external 1.024V ±10% reference voltage is applied to 1.024V ±10% REFIN. ...

Page 18

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC CHA CHB t CLK CLK t t DOB DOA A/B CHB CHA CHB t DA/B D0–D7 D0B D1A D1B Figure 5. System Timing Diagram provide lowest possible jitter. Any significant aperture ...

Page 19

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC Table 2. Output Codes vs. Input Voltage DIFFERENTIAL INPUT VOLTAGE (IN+ - IN-) 127 × V REF 128 126 × V REF 128 1 × V REF 128 0 × V REF 128 1 × ...

Page 20

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC R1 600Ω 1.5V COM = ±85mV V SIG P 300Ω 600Ω OPERATIONAL AMPLIFIERS CHOOSE EITHER OF THE MAX4452/MAX4453/MAX4454 SINGLE/ DUAL/QUAD +3V, 200MHz OP AMPS FOR USE WITH THIS CIRCUIT. ...

Page 21

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC 25Ω 22pF 0.1μ N.C. 2.2μF 0.1μ MINICIRCUITS TT1-6-KK81 25Ω 22pF 25Ω 22pF 0.1μ N.C. 2.2μF 0.1μ MINICIRCUITS ...

Page 22

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC 3V 1.248V 0.1μ MAX6061 10Hz 1% LOWPASS 20kΩ FILTER 3 1% 1μF 90.9kΩ 3 NOTE: ONE FRONT-END REFERENCE CIRCUIT PROVIDES ±15mA OF OUTPUT MAX4250 DRIVE AND SUPPORTS OVER 4 1000 MAX1192s. Figure 10. ...

Page 23

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC 3V 2.500V 1 0.1μF 2 MAX6066 3 1μF NOTE: ONE FRONT-END REFERENCE CIRCUIT SUPPORTS UP TO 160 MAX1192s 3V UNCOMMITTED 1MΩ 0.1μ 1/4 14 MAX4254 1MΩ Figure 11. External Unbuffered Reference ...

Page 24

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC Figure 12. Typical QAM Receiver Application Typical QAM Demodulation Application Quadrature amplitude modulation (QAM) is frequently used in digital communications. Typically found in spread-spectrum-based systems, a QAM signal repre- sents a carrier frequency modulated in ...

Page 25

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC CLK ANALOG INPUT SAMPLED DATA (T/H) HOLD TRACK T/H Figure 13. T/H Aperture Timing Static Parameter Definitions Integral Nonlinearity (INL) Integral nonlinearity is the deviation of the values on an actual ...

Page 26

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC Total Harmonic Distortion (THD) THD is typically the ratio of the RMS sum of the first five harmonics of the input signal to the fundamental itself. This is expressed as: ⎡ ...

Page 27

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 27 © 2009 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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