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PDF MAX1333 Data sheet ( Hoja de datos )
| Número de pieza | MAX1333 | |
| Descripción | (MAX1332 / MAX1333) True-Differential 12-Bit ADCs | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-3712; Rev 0; 5/05
3Msps/2Msps, 5V/3V, 2-Channel, True-
Differential 12-Bit ADCs
General Description
The MAX1332/MAX1333 2-channel, serial-output,
12-bit, analog-to-digital converters (ADCs) feature two
true-differential analog inputs and offer outstanding noise
immunity and dynamic performance. Both devices easily
interface with SPI™/QSPI™/MICROWIRE™ and standard
digital signal processors (DSPs).
The MAX1332 operates from a single supply of +4.75V
to +5.25V with sampling rates up to 3Msps. The
MAX1333 operates from a single supply of +2.7V to
+3.6V with sampling rates up to 2Msps. These devices
feature a partial power-down mode and a full power-
down mode that reduce the supply current to 3.3mA
and 0.2µA, respectively. Also featured is a separate
power supply input (DVDD) that allows direct interfacing
to +2.7V to +3.6V digital logic. The fast conversion
speed, low power dissipation, excellent AC perfor-
mance, and DC accuracy (±0.6 LSB INL) make the
MAX1332/MAX1333 ideal for industrial process control,
motor control, and base-station applications.
The MAX1332/MAX1333 are available in a space-sav-
ing (3mm x 3mm), 16-pin, TQFN package and operate
over the extended (-40°C to +85°C) temperature range.
Applications
Data Acquisition
Bill Validation
Motor Control
Base Stations
High-Speed Modems
Optical Sensors
Industrial Process Control
Features
♦ 3Msps Sampling Rate (+5V, MAX1332)
♦ 2Msps Sampling Rate (+3V, MAX1333)
♦ Separate Logic Supply: +2.7V to +3.6V
♦ Two True-Differential Analog Input Channels
♦ Bipolar/Unipolar Selection Input
♦ Only 38mW (typ) Power Consumption
♦ Only 2µA (max) Shutdown Current
♦ High-Speed, SPI-Compatible, 3-Wire Serial
Interface
♦ 2MHz Full-Linear Bandwidth
♦ 71.4dB SINAD and -93dB THD at 525kHz Input
Frequency
♦ No Pipeline Delays
♦ Space-Saving (3mm x 3mm), 16-Pin, TQFN
Package
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX1332ETE* -40°C to +85°C 16 TQFN-EP** (3mm x 3mm)
MAX1333ETE -40°C to +85°C 16 TQFN-EP** (3mm x 3mm)
*Future product—contact factory for availability.
**EP = Exposed paddle.
Selector Guide and Pin Configuration appear at end of data
sheet.
Typical Operating Circuit
+4.75V TO +5.25V
1µF
0.1µF
+
DIFFERENTIAL -
INPUTS +
REF INPUT
VOLTAGE
1µF
-
0.1µF
+2.7V TO +3.6V
AVDD
AIN1P
AIN1N
DVDD
SHDN
BIP/UNI
AIN0P MAX1332 CHSEL
AIN0N
CNVST
REF
AGND
SCLK
DOUT
AGND DGND
0.1µF
1µF
µC/DSP
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ 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  
3Msps/2Msps, 5V/3V, 2-Channel, True-
Differential 12-Bit ADCs
ELECTRICAL CHARACTERISTICS (MAX1333)
(AVDD = +2.7V to +3.6V, DVDD = +2.7V to AVDD, fSCLK = 32MHz, VREF = 2.5V, TA = TMIN to TMAX, unless otherwise noted. Typical
values are at TA = +25°C.)
PARAMETER
SYMBOL
DC ACCURACY (Note 3) (BIP/UNI = DGND)
CONDITIONS
MIN TYP MAX UNITS
Resolution
N
12 Bits
Relative Accuracy
INL
±0.6 ±1.0 LSB
Differential Nonlinearity
DNL
±0.6 ±1.0 LSB
Offset Error
±0.9 ±3.0 LSB
Gain Error
±0.6 ±6.0 LSB
Offset-Error Temperature
Coefficient
±1.1
ppm/°C
Gain-Error Temperature
Coefficient
±0.2
DYNAMIC SPECIFICATIONS (AIN = -0.2dBFS, fIN = 525kHz, BIP/UNI = DVDD, unless otherwise noted) (Note 3)
Signal-to-Noise Ratio
SNR
70 71.5
Signal-to-Noise Plus Distortion
SINAD
70 71.4
Total Harmonic Distortion
THD
-93 -86.5
Spurious-Free Dynamic Range
SFDR
83.5 93
Channel-to-Channel Isolation
76
Full-Linear Bandwidth
SINAD > 68dB
1.7
Full-Power Bandwidth
5.5
Small-Signal Bandwidth
5
CONVERSION RATE
Minimum Conversion Time
Maximum Throughput Rate
tCONV Figure 5
406
2.0
ppm/°C
dB
dB
dBc
dBc
dB
MHz
MHz
MHz
ns
Msps
Minimum Track-and-Hold
Acquisition Time
tACQ Figure 5
78 ns
Aperture Delay
tAD Figure 21
Aperture Jitter
tAJ Figure 21
DIFFERENTIAL ANALOG INPUTS (AIN0P, AIN0N, AIN1P, AIN1N)
Differential Input Voltage Range
(VAIN_P - VAIN_N)
BIP/UNI = DGND
VIN BIP/ UNI = DVDD
<10 ns
<10 ps
0
-VREF / 2
VREF
+VREF / 2
V
Absolute Input Voltage Range
AGND
- 50mV
AVDD
+
50mV
V
DC Leakage Current
ILKG
±1 µA
_______________________________________________________________________________________ 5
5 Page 
3Msps/2Msps, 5V/3V, 2-Channel, True-
Differential 12-Bit ADCs
Typical Operating Characteristics (continued)
(AVDD = +3V, DVDD = +3V, VREF = 2.5V, fSCLK = 40MHz. TA = +25°C, unless otherwise noted.)
4.00
3.75
3.50
3.25
3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
-40
DVDD SUPPLY CURRENT
vs. TEMPERATURE
ZERO-SCALE INPUT
fSCLK = 40MHz
-15 10 35 60
TEMPERATURE (°C)
85
MAX1333
DVDD SUPPLY CURRENT vs. fSCLK
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 5 10 15 20 25 30 35 40
fSCLK (MHz)
DVDD SUPPLY CURRENT vs. DVDD
4.0
3.5
3.0
2.5
2.0
1.5
1.0 AVDD = +3V
ZERO-SCALE INPUT
0.5 fSCLK = 40MHz
0
2.70 2.75 2.80 2.85 2.90 2.95 3.00
DVDD (V)
SINAD vs. INPUT FREQUENCY
72
SFDR vs. INPUT FREQUENCY
100
THD vs. INPUT FREQUENCY
-70
70 94
-76
68 88
-82
66 82
-88
64
fSCLK = 32MHz
62
0 400 800
1200 1600
INPUT FREQUENCY (kHz)
2000
76
fSCLK = 32MHz
70
0 400 800
1200 1600
INPUT FREQUENCY (kHz)
OUTPUT AMPLITUDE
vs. INPUT FREQUENCY
0
100
-1
-94
fSCLK = 32MHz
-100
2000 0 400 800 1200 1600
INPUT FREQUENCY (kHz)
TOTAL SUPPLY CURRENT
vs. THROUGHPUT RATE
NO POWER-DOWN
2000
-2 10
FULL POWER-DOWN
-3 PARTIAL POWER-DOWN
-4 1
-5 fSCLK = 32MHz
AIN = -0.1dBFS
-6
012345678
INPUT FREQUENCY (MHz)
0.1
0.001
0.01 0.1
fCNVST (MHz)
1
10
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet MAX1333.PDF ] | |
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