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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1184 Datasheet

Low-Power ADC

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MAX1184 pdf
19-2174; Rev 0; 10/01
Dual 10-Bit, 20Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
General Description
The MAX1184 is a +3V, dual 10-bit analog-to-digital
converter (ADC) featuring fully-differential wideband
track-and-hold (T/H) inputs, driving two pipelined, 9-
stage ADCs. The MAX1184 is optimized for low-power,
high-dynamic performance applications in imaging,
instrumentation, and digital communication applica-
tions. This ADC operates from a single +2.7V to +3.6V
supply, consuming only 105mW while delivering a typi-
cal signal-to-noise ratio (SNR) of 59.5dB at an input fre-
quency of 7.5MHz and a sampling rate of 20Msps. The
T/H driven input stages incorporate 400MHz (-3dB)
input amplifiers. The converters may also be operated
with single-ended inputs. In addition to low operating
power, the MAX1184 features a 2.8mA sleep mode as
well as a 1µA power-down mode to conserve power
during idle periods.
An internal +2.048V precision bandgap reference sets
the full-scale range of the ADC. A flexible reference
structure allows the use of the internal or an externally
derived reference, if desired for applications requiring
increased accuracy or a different input voltage range.
The MAX1184 features parallel, CMOS-compatible
www.DataSheet4U.comthree-state outputs. The digital output format is set to
two’s complement or straight offset binary through a
single control pin. The device provides for a separate
output power supply of +1.7V to +3.6V for flexible inter-
facing. The MAX1184 is available in a 7mm x 7mm, 48-
pin TQFP package, and is specified for the extended
industrial (-40°C to +85°C) temperature range.
Pin-compatible higher speed versions of the MAX1184
are also available. Please refer to the MAX1180 data
sheet for 105Msps, the MAX1181 data sheet for
80Msps, the MAX1182 data sheet for 65Msps, and the
MAX1183 data sheet for 40Msps. In addition to these
speed grades, this family includes a 20Msps multi-
plexed output version (MAX1185), for which digital data
is presented time-interleaved on a single, parallel 10-bit
output port.
Applications
High Resolution Imaging
I/Q Channel Digitization
Multchannel IF Undersampling
Instrumentation
Video Application
Features
o Single +3V Operation
o Excellent Dynamic Performance:
59.5dB SNR at fIN = 7.5MHz
74dB SFDR at fIN = 7.5MHz
o Low Power:
35mA (Normal Operation)
2.8mA (Sleep Mode)
1µA (Shutdown Mode)
o 0.02dB Gain and 0.25° Phase Matching (typ)
o Wide ±1Vp-p Differential Analog Input
Voltage Range
o 400MHz -3dB Input Bandwidth
o On-Chip +2.048V Precision Bandgap Reference
o User-Selectable Output Format—Two’s
Complement or Offset Binary
o 48-Pin TQFP Package with Exposed Pad for
Improved Thermal Dissipation
o Evaluation Kit Available
PART
MAX1184ECM
Ordering Information
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
48 TQFP-EP
Pin Configuration
COM 1
VDD 2
GND 3
INA+ 4
INA- 5
VDD 6
GND 7
INB- 8
INB+ 9
GND 10
VDD 11
CLK 12
MAX1184
36 D1A
35 D0A
34 OGND
33 OVDD
32 OVDD
31 OGND
30 D0B
29 D1B
28 D2B
27 D3B
26 D4B
25 D5B
48 TQFP-EP
________________________________________________________________ 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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1184 Datasheet

Low-Power ADC

No Preview Available !

MAX1184 pdf
Dual 10-Bit, 20Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
ABSOLUTE MAXIMUM RATINGS
VDD, OVDD to GND...............................................-0.3V to +3.6V
OGND to GND.......................................................-0.3V to +0.3V
INA+, INA-, INB+, INB- to GND ...............................-0.3V to VDD
REFIN, REFOUT, REFP, REFN, CLK,
COM to GND ..........................................-0.3V to (VDD + 0.3V)
OE, PD, SLEEP, T/B, D9AD0A,
D9BD0B to OGND .............................-0.3V to (OVDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
48-Pin TQFP (derate 12.5mW/°C above +70°C).......1000mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(VDD = +3V, OVDD = +2.5V, 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through
a 10kresistor, VIN = 2Vp-p (differential w.r.t. COM), CL = 10pF at digital outputs (Note 5), fCLK = 20MHz, TA = TMIN to TMAX, unless
otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
DC ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
ANALOG INPUT
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
INL
DNL
fIN = 7.5MHz
fIN = 7.5MHz, no missing codes guaranteed
10 Bits
±0.5 ±1.5 LSB
±0.25 ±1.0 LSB
< ±1 ±1.7 % FS
0 ±2 % FS
Differential Input Voltage
Range
VDIFF Differential or single-ended inputs
±1.0 V
Common-Mode Input Voltage
Range
Input Resistance
Input Capacitance
CONVERSION RATE
Maximum Clock Frequency
Data Latency
VCM
RIN
CIN
Switched capacitor load
fCLK
VDD/2
± 0.5
100
5
20
5
V
k
pF
MHz
Clock
Cycles
DYNAMIC CHARACTERISTICS (fCLK = 20MHz, 4096-point FFT)
Signal-to-Noise Ratio
SNR
fINA or B = 7.5MHz, TA = +25°C
fINA or B = 12MHz
Signal-to-Noise and Distortion
SINAD
fINA or B = 7.5MHz, TA = +25°C
fINA or B = 12MHz
Spurious-Free Dynamic Range
SFDR
fINA or B = 7.5MHz, TA = +25°C
fINA or B = 12MHz
57.3
57
64
59.5
59.4
59.4
59.2
74
72
dB
dB
dBc
2 _______________________________________________________________________________________


Part Number MAX1184
Description Low-Power ADC
Maker Maxim Integrated Products
Total Page 21 Pages
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