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MAX1002CAXMAXN/a287avaiLow-Power / 60Msps / Dual / 6-Bit ADC
MAX1002CAXMAXIMN/a561avaiLow-Power / 60Msps / Dual / 6-Bit ADC


MAX1002CAX ,Low-Power / 60Msps / Dual / 6-Bit ADCELECTRICAL CHARACTERISTICS(V , V = +5V ±5%; T = T to T ; unless otherwise noted.)CC CCO A MIN MAXPA ..
MAX1002CAX ,Low-Power / 60Msps / Dual / 6-Bit ADCApplications______________Ordering InformationDirect Broadcast Satellite (DBS) ReceiversPART TEMP. ..
MAX1003CAX ,Low-Power / 90Msps / Dual 6-Bit ADCApplicationsDirect Broadcast Satellite (DBS) Receivers ______________Ordering InformationVSAT Recei ..
MAX1005 ,IF UndersamplerELECTRICAL CHARACTERISTICS(VCCA = VCCD = 3.0V, f = 15MHz, R = ¥ , T = T to T , unless otherwise not ..
MAX1005CEE ,IF UndersamplerApplicationsRXEN 14 D13PWT1900AIO+ 4 MAX1005 13 D2PHS/PAIO- 5 12 D3Wireless LoopsTXEN 6 11 D4PCS/N ..
MAX1005EEE ,IF UndersamplerELECTRICAL CHARACTERISTICS(VCCA = VCCD = 3.0V, f = 15MHz, R = ¥ , T = T to T , unless otherwise not ..
MAX3379EEUD ,15kV ESD-Protected / 1A / 16Mbps / Dual/Quad Low-Voltage Level Translators in UCSPELECTRICAL CHARACTERISTICS(V = +1.65V to +5.5V, V = +1.2V to (V + 0.3V), GND = 0, I/O V and I/O V u ..
MAX337CAI ,16-Channel/Dual 8-Channel, Low-Leakage, CMOS Analog MultiplexersGeneral Description ________
MAX337CAI ,16-Channel/Dual 8-Channel, Low-Leakage, CMOS Analog MultiplexersGeneral Description ________
MAX337CAI ,16-Channel/Dual 8-Channel, Low-Leakage, CMOS Analog MultiplexersELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +15V, V- = -15V, GND = 0V, V = +2.4V, V = +0.8V, T = ..
MAX337CAI+ ,16-Channel Dual 8 Channel, Low Leakage, CMOS Analog MultiplexersApplicationsOrdering Information appears at end of data sheet.● Precision Data Acquisition● Precisi ..
MAX337CAI+T ,16-Channel Dual 8 Channel, Low Leakage, CMOS Analog MultiplexersApplicationsOrdering Information appears at end of data sheet.● Precision Data Acquisition● Precisi ..


MAX1002CAX
Low-Power / 60Msps / Dual / 6-Bit ADC
_______________General Description
The MAX1002 is a dual, 6-bit analog-to-digital converter
(ADC) that combines high-speed, low-power operation
with a user-selectable input range, an internal refer-
ence, and a clock oscillator. The dual, parallel ADCs
are designed to convert in-phase (I) and quadrature
(Q) analog signals into two 6-bit offset-binary-coded
digital outputs at sampling rates up to 60Msps while
achieving typical integral nonlinearity (INL) and differ-
ential nonlinearity (DNL) of ±1/4LSB. The ability to
interface directly with baseband I and Q signals makes
the MAX1002 ideal for use in direct-broadcast satellite,
VSAT, and QAM16 demodulation applications.
The MAX1002 input amplifiers feature true differential
inputs, a 55MHz -0.5dB analog bandwidth, and user-
programmable input full-scale ranges of 125mVp-p,
250mVp-p, or 500mVp-p. With an AC-coupled input
signal, matching performance between input channels
is typically 0.1dB gain, 1/4LSB offset, and 0.5°phase.
Dynamic performance is 5.85 effective number of bits
(ENOB) with a 20MHz analog input signal, or 5.78
ENOB with a 50MHz input signal.
The MAX1002 operates with a single +5V power supply
and provides TTL-compatible digital outputs. The device
is available in the commercial temperature range (0°C to
+70°C) and comes in a 36-pin SSOP package.
________________________Applications

Direct Broadcast Satellite (DBS) Receivers
VSAT Receivers
Wide Local Area Networks (WLAN)
Cable Television Set-Top Boxes
____________________________Features
±1/4LSB INL and DNL, Typical1/4LSB (typ) Channel-to-Channel Offset Matching0.1dB Gain and 0.5°Phase Matching, TypicalInternal Bandgap Voltage ReferenceTwo Matched 6-Bit, 60Msps ADCs Excellent Dynamic Performance:
5.85 ENOB with 20MHz Analog Input
5.7 ENOB with 50MHz Analog Input
Internal Oscillator with Overdrive Capability55MHz (-0.5dB) Bandwidth Input Amplifiers
with True Differential Inputs
User-Selectable Input Full-Scale Range
(125mVp-p, 250mVp-p, or 500mVp-p)
Single-Ended or Differential Input Drive+5V Single SupplyTTL Outputs90Msps Upgrade with +3.3V CMOS-Compatible
Output Available (MAX1003)
MAX1002, 60Msps, Dual, 6-Bit ADC
_________________________________________________________Functional Diagram
MAX1002
Low-Power, 60Msps, Dual, 6-Bit ADC
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS

(VCC, VCCO= +5V ±5%; TA= TMINto TMAX; unless otherwise noted.)
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.
VCCto GND .........................................................-0.3V to +6.5V
VCCOto OGND.........................................................-0.3V, +6.5V
GND to OGND .........................................................-0.3V, +0.3V
Digital and Clock Output Pins to OGND........-0.3V, VCCO(<10sec)
All Other Pins to GND..................................................-0.3V, VCC
Continuous Power Dissipation (TA= +70°C)
SSOP (derate 45mW/°C above +70°C)......................941mW
Operating Temperature Range...............................0°C to +70°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, <10sec)...........................+300°C
MAX1002
Low-Power, 60Msps, Dual, 6-Bit ADC
AC ELECTRICAL CHARACTERISTICS

(VCC,VCCO = +5V ±5%; TA= +25°C; unless otherwise noted.)
Note 1:
Best straight-line linearity method.
Note 2:
A typical application will AC couple the analog input to the DC bias level present at the analog inputs (typically 2.35V).
However, it is also possible to DC couple the analog input (using differential or single-ended drive) within this common-
mode input range (Figures 4, 5).
Note 3:
PSSR is defined as the change in the mid-gain, full-scale range as a function of the variation in VCCsupply voltage
(expressed in decibels).
Note 4:
The current in the VCCOsupply is a strong function of the capacitive loading on the digital outputs. To minimize supply
transients and achieve the best dynamic performance, reduce the capacitive loading effects by keeping line lengths on the
digital outputs to a minimum.
Note 5:
Offset-correction compensation enabled, 0.22µF at Q and I compensation inputs (Figures 2, 3).
Note 6:
tPDand tSKEWare measured from the 1.4V level of the output clock, to the 1.4V level of either the rising or falling edge of a
data bit. tDCLKis measured from the 50% level of the clock overdrive signal on TNK+ to the 1.4V level of DCLK. The capac-
itive load on the outputs is 15pF.
MAX1002
Low-Power, 60Msps, Dual, 6-Bit ADC
__________________________________________Typical Operating Characteristics

(VCC, VCCO= +5V ±5%; MAX1002/MAX1003 evaluation kit; TA= +25°C; unless otherwise noted.)
_______________Detailed Description
Converter Operation

The MAX1002 contains two 6-bit analog-to-digital con-
verters (ADCs), a buffered voltage reference, and oscil-
lator circuitry. The ADCs use a flash-conversion
technique to convert an analog input signal into a 6-bit
parallel digital output code. The MAX1002’s unique
design includes 63 fully differential comparators and a
proprietary encoding scheme that ensures no more
than 1LSB dynamic encoding error. The control logic
interfaces easily to most digital signal processors
(DSPs) and microprocessors (µPs) with +5V CMOS-
compatible logic interfaces. Figure 1 shows the
MAX1002 in a typical application.
Programmable Input Amplifiers

The MAX1002 has in-phase (I) and quadrature (Q) pro-
grammable-gain input amplifiers with a 55MHz
-0.5dB bandwidth and true differential inputs. To maxi-
mize performance in high-speed systems, each amplifier
has less than 5pF of input capacitance. The input ampli-
fier gain is programmed via the GAIN pin to provide
three possible input full-scale ranges (FSR) (Table 1).
MAX1002
Low-Power, 60Msps, Dual, 6-Bit ADC
______________________________________________________________Pin Description
MAX1002
Figures 2 and 3 show single-ended and differential AC-
coupled input circuits. Each of the amplifier inputs is
internally biased to a 2.35V reference through a 20kΩ
resistor, eliminating external DC bias circuits. A series
0.1µF capacitor is required at each amplifier input for
AC-coupled signals.
When operating with AC-coupled inputs, the input
amplifiers’ DC offset voltage is nulled to within ±1/2LSB
by an on-chip offset-correction amplifier. An external
compensation capacitor is required to set the dominant
pole of the offset-correction amplifier’s frequency
response (Figures 2 and 3). The compensation capaci-
tor determines the low-frequency corner of the analog
input response according to the following formula:= 1 / (0.1 x C)
where C is the value of the compensation capacitor in
µF, and fc is the corner frequency in Hz.
Low-Power, 60Msps, Dual, 6-Bit ADC

Figure 1. Commercial Satellite Receiver System
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