MAX1181ECM+D Maxim Integrated Products, MAX1181ECM+D Datasheet

IC ADC 10BIT 80MSPS DUAL 48-TQFP

MAX1181ECM+D

Manufacturer Part Number
MAX1181ECM+D
Description
IC ADC 10BIT 80MSPS DUAL 48-TQFP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1181ECM+D

Number Of Bits
10
Sampling Rate (per Second)
80M
Data Interface
Parallel
Number Of Converters
2
Power Dissipation (max)
291mW
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
48-TQFP Exposed Pad, 48-eTQFP, 48-HTQFP, 48-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX1181 is a 3V, dual 10-bit, analog-to-digital
converter (ADC) featuring fully-differential wideband
track-and-hold (T/H) inputs, driving two pipelined, nine-
stage ADCs. The MAX1181 is optimized for low-power,
high-dynamic performance applications in imaging,
instrumentation, and digital communication applica-
tions. The MAX1181 operates from a single 2.7V to 3.6V
supply, consuming only 246mW, while delivering a typi-
cal signal-to-noise ratio (SNR) of 59dB at an input fre-
quency of 20MHz and a sampling rate of 80Msps. 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 MAX1181 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 external
reference, if desired for applications requiring
increased accuracy or a different input voltage range.
The MAX1181 features parallel, CMOS-compatible
three-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 interfac-
ing. The MAX1181 is available in a 7mm
TQFP package, and is specified for the extended
industrial (-40°C to +85°C) temperature range.
Pin-compatible higher and lower speed versions of the
MAX1181 are also available. Please refer to the
MAX1180 datasheet for 105Msps, the MAX1182
datasheet for 65Msps, the MAX1183 datasheet for
40Msps, and the MAX1184 datasheet for 20Msps. In
addition to these speed grades, this family includes a
20Msps multiplexed output version (MAX1185), for
which digital data is presented time-interleaved on a
single, parallel 10-bit output port.
19-2093; Rev 1; 2/07
Functional Diagram appears at end of data sheet.
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.
High-Resolution Imaging
I/Q Channel Digitization
Multichannel IF Undersampling
Instrumentation
Video Application
with Internal Reference and Parallel Outputs
________________________________________________________________ Maxim Integrated Products
General Description
Dual 10-Bit, 80Msps, 3V, Low-Power ADC
Applications
7mm, 48-pin
♦ Single 3V Operation
♦ Excellent Dynamic Performance
♦ Low Power
♦ 0.02dB Gain and 0.25° Phase Matching (typ)
♦ Wide ±1V
♦ 400MHz, -3dB Input Bandwidth
♦ On-Chip 2.048V Precision Bandgap Reference
♦ User-Selectable Output Format—Two’s
♦ 48-Pin TQFP Package with Exposed Pad for
♦ Evaluation Kit Available
*EP = Exposed paddle.
+Denotes a lead-free package.
MAX1181ECM
MAX1181ECM+
Range
Complement or Offset Binary
Improved Thermal Dissipation
59dB SNR at f
73dB SFDR at f
82mA (Normal Operation)
2.8mA (Sleep Mode)
1µA (Shutdown Mode)
PART
COM
INA+
INB+
GND
INA-
GND
INB-
GND
CLK
V
V
V
DD
DD
DD
NOTE: THE PIN 1 INDICATOR FOR LEAD-FREE PACKAGES IS REPLACED
10
11
12
1
2
3
4
5
6
7
8
9
P-P
BY A "+" SIGN.
Differential Analog Input Voltage
EP*
IN
IN
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
= 20MHz
48 TQFP-EP
= 20MHz
MAX1181
Pin Configuration
PIN-PACKAGE
48 TQFP-EP*
48 TQFP-EP*
Features
36
35
34
33
32
31
30
29
28
27
26
25
D1A
D0A
OGND
OV
OV
OGND
D0B
D1B
D2B
D3B
D4B
D5B
DD
DD
1

Related parts for MAX1181ECM+D

MAX1181ECM+D Summary of contents

Page 1

... I/Q Channel Digitization Multichannel IF Undersampling Instrumentation Video Application Functional Diagram appears at end of data sheet. ________________________________________________________________ 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. ♦ Single 3V Operation ♦ Excellent Dynamic Performance 59dB SNR at f 73dB SFDR at f ♦ ...

Page 2

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs ABSOLUTE MAXIMUM RATINGS GND ...............................................-0.3V to +3. OGND to GND.......................................................-0.3V to +0.3V INA+, INA-, INB+, INB- to GND ...............................-0. REFIN, ...

Page 3

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs ELECTRICAL CHARACTERISTICS (continued 3V 2.5V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through ...

Page 4

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs ELECTRICAL CHARACTERISTICS (continued 3V 2.5V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through ...

Page 5

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs ELECTRICAL CHARACTERISTICS (continued 3V 2.5V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through ...

Page 6

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs ( 2.5V, internal reference, differential input at -0.5dBFS wise noted.) FFT PLOT CHB (8192-POINT RECORD, DIFFERENTIAL INPUT 19.9123MHz ...

Page 7

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs ( 2.5V, internal reference, differential input at -0.5dBFS wise noted.) SMALL-SIGNAL INPUT BANDWIDTH vs. ANALOG INPUT FREQUENCY (SINGLE-ENDED ...

Page 8

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs ( 2.5V, internal reference, differential input at -0.5dBFS wise noted.) ANALOG SUPPLY CURRENT vs. ANALOG SUPPLY VOLTAGE 100 ...

Page 9

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs PIN NAME Common-Mode Voltage Input/Output. Bypass to GND with a ≥ 0.1µF capacitor. 1 COM Analog Supply Voltage. Bypass each supply pin to GND with a 0.1µF capacitor. ...

Page 10

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs PIN NAME 40 D5A Three-State Digital Output, Bit 5, Channel A 41 D6A Three-State Digital Output, Bit 6, Channel A 42 D7A Three-State Digital Output, Bit 7, Channel ...

Page 11

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs V IN Σ x2 T/H FLASH DAC ADC 1.5 BITS STAGE 1 STAGE 2 DIGITAL CORRECTION LOGIC T/H 10 D9A–D0A V INA V = INPUT VOLTAGE BETWEEN INA+ ...

Page 12

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs S4a INA+ S4c INA- S4b S4a INB+ S4c INB- S4b Figure 2. MAX1181 T/H Amplifiers five clock cycle latency between any particular sample and its corresponding output data. ...

Page 13

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs ANALOG INPUT CLOCK INPUT t D0 DATA OUTPUT D9A–D0A DATA OUTPUT D9B–D0B Figure 3. System Timing Diagram Table 1. MAX1181 Output Codes ...

Page 14

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs The 22pF C capacitor acts as a small bypassing IN capacitor. Using Transformer Coupling An RF transformer (Figure 6) provides an excellent solution to convert a single-ended source ...

Page 15

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs +5V 0.1μF INPUT MAX4108 0.1μF -5V 300Ω 300Ω +5V 0.1μF INPUT MAX4108 0.1μF -5V 300Ω 300Ω Figure 5. Typical Application for Single-Ended-to-Differential Conversion ______________________________________________________________________________________ +5V 0.1μF MAX4108 0.1μF ...

Page 16

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs 25Ω 22pF 0.1μ N.C. 2.2μF 0.1μ MINI-CIRCUITS TT1–6 25Ω 22pF 25Ω 22pF 0.1μ ...

Page 17

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs Figure 7. Using an Op Amp for Single-Ended, AC-Coupled Input Drive DOWNCONVERTER Figure 8. Typical QAM Application, Using the MAX1181 ______________________________________________________________________________________ REFP 1kΩ R ...

Page 18

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs CLK ANALOG INPUT SAMPLED DATA (T/H) HOLD TRACK T/H Figure 9. T/H Aperture Timing V DD GND INA+ T/H INA- CLK INB+ T/H INB- ...

Page 19

Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, ...

Page 20

... 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. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products Package Information (continued) PACKAGE OUTLINE, 48L TQFP, 7x7x1 ...

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