MAX1124EGK-TD Maxim Integrated, MAX1124EGK-TD Datasheet

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MAX1124EGK-TD

Manufacturer Part Number
MAX1124EGK-TD
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX1124EGK-TD

Number Of Channels
1
Architecture
Pipeline
Conversion Rate
250000 KSPs
Resolution
10 bit
Input Type
Single-Ended/Differential
Snr
57.1 dB
Interface Type
LVDS, Parallel
Operating Supply Voltage
1.7 V to 1.9 V
Maximum Operating Temperature
+ 85 C
Package / Case
QFN EP
Maximum Power Dissipation
657 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
Internal, External
The MAX1124 is a monolithic 10-bit, 250Msps analog-
to-digital converter (ADC) optimized for outstanding
dynamic performance at high IF frequencies up to
500MHz. The product operates with conversion rates of
up to 250Msps while consuming only 477mW.
At 250Msps and an input frequency of 100MHz, the
MAX1124 achieves a spurious-free dynamic range
(SFDR) of 71dBc. Its excellent signal-to-noise ratio
(SNR) of 57.1dB at 10MHz remains flat (within 1dB) for
input tones up to 500MHz. This makes the MAX1124
ideal for wideband applications such as digital predis-
tortion in cellular base-station transceiver systems.
The MAX1124 requires a single 1.8V supply. The ana-
log input is designed for either differential or single-
ended operation and can be AC- or DC-coupled. The
ADC also features a selectable on-chip divide-by-2
clock circuit, which allows the user to apply clock fre-
quencies as high as 500MHz. This helps to reduce the
phase noise of the input clock source. A differential
LVDS sampling clock is recommended for best perfor-
mance. The converter’s digital outputs are LVDS com-
patible, and the data format can be selected to be
either two’s complement or offset binary.
The MAX1124 is available in a 68-pin QFN with
exposed pad (EP) and is specified over the industrial
(-40°C to +85°C) temperature range.
For pin-compatible, lower speed versions of the
MAX1124, refer to the MAX1122 (170Msps) and the
MAX1123 (210Msps) data sheets. For a pin-compatible
8-bit version of the MAX1124, refer to the MAX1121
data sheet.
19-3029; Rev 2; 8/08
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.
1.8V, 10-Bit, 250Msps Analog-to-Digital Converter
Wireless and Wired Broadband Communication
Cable-Head End Systems
Digital Predistortion Receivers
Communications Test Equipment
Radar and Satellite Subsystems Antenna Array
Processing
with LVDS Outputs for Wideband Applications
________________________________________________________________ Maxim Integrated Products
General Description
Applications
♦ 250Msps Conversion Rate
♦ SNR = 56.8dB/55.5dB at f
♦ SFDR = 71dBc/63.8dBc at f
♦ NPR = 54.8dB at f
♦ Single 1.8V Supply
♦ 477mW Power Dissipation at 250Msps
♦ On-Chip Track-and-Hold and Internal Reference
♦ On-Chip Selectable Divide-by-2 Clock Input
♦ LVDS Digital Outputs with Data Clock Output
♦ Evaluation Kit Available (Order MAX1124EVKIT)
* EP = Exposed pad.
MAX1124EGK
REFADJ
CLKDIV
AGND
REFIO
AGND
AGND
AGND
AGND
AGND
AV
AV
AV
AV
AV
AV
INN
INP
CC
CC
CC
CC
CC
CC
TOP VIEW
10
11
12
13
14
15
16
17
PART
1
2
3
4
5
6
7
8
9
68
18
67
19
EP
20
66
65
21
64
22
-40°C to +85°C
TEMP RANGE
NOTCH
63
23
Ordering Information
62
24
MAX1124
61
25
60
26
Pin Configuration
= 28.8MHz
IN
59
27
IN
= 100MHz/500MHz
28
58
= 100MHz/500MHz
29
57
56
30
31
55
PIN-PACKAGE
68 QFN-EP*
32
54
Features
53
33
52
34
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
D6P
D6N
D5P
D5N
D4P
D4N
OGND
OV
DCLKP
DCLKN
OV
D3P
D3N
D2P
D2N
D1P
D1N
CC
CC
1

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MAX1124EGK-TD Summary of contents

Page 1

... Single 1.8V Supply ♦ 477mW Power Dissipation at 250Msps ♦ On-Chip Track-and-Hold and Internal Reference ♦ On-Chip Selectable Divide-by-2 Clock Input ♦ LVDS Digital Outputs with Data Clock Output ♦ Evaluation Kit Available (Order MAX1124EVKIT) PART MAX1124EGK * EP = Exposed pad. TOP VIEW Applications ...

Page 2

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications ABSOLUTE MAXIMUM RATINGS AV to AGND ......................................................-0.3V to +2. OGND .....................................................-0.3V to +2. .......................................................-0.3V to +2. AGND to OGND ....................................................-0.3V ...

Page 3

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications ELECTRICAL CHARACTERISTICS (continued) ( 1.8V AGND OGND CC CC internal reference, digital output pins differential R guaranteed by production test, < +25°C guaranteed ...

Page 4

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications ELECTRICAL CHARACTERISTICS (continued) ( 1.8V AGND OGND CC CC internal reference, digital output pins differential R guaranteed by production test, < +25°C guaranteed ...

Page 5

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications ( 1.8V AGND OGND tions, differential input drive, differential sine-wave clock input drive, 0.1µF capacitor on REFIO, internal reference, digital output ...

Page 6

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications ( 1.8V AGND OGND tions, differential input drive, differential sine-wave clock input drive, 0.1µF capacitor on REFIO, internal reference, digital output ...

Page 7

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications ( 1.8V AGND OGND tions, differential input drive, differential sine-wave clock input drive, 0.1µF capacitor on REFIO, internal reference, digital output ...

Page 8

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications ( 1.8V AGND OGND tions, differential input drive, differential sine-wave clock input drive, 0.1µF capacitor on REFIO, internal reference, digital output ...

Page 9

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications PIN NAME 26, 45, 61 OGND Digital Converter Ground. Ground connection for digital circuitry and output drivers. 27, 28, 41, 44 Digital Supply Voltage. Bypass with a ...

Page 10

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications CLKP CLKN INP INN 2.2kΩ 2.2kΩ COMMON-MODE BUFFER Figure 1. MAX1124 Block Diagram INP 2.2kΩ TO COMMON-MODE INPUT TO COMMON-MODE INPUT Figure 2. Simplified Analog Input Architecture Detailed Description—Theory ...

Page 11

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications SAMPLING EVENT INN INP t AD CLKN N CLKP t CPDL DCLKP DCLKN t PDL D0P/N–D9P ORP 0.4 x ...

Page 12

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications Table 1. MAX1124 Digital Output Coding INP ANALOG INN ANALOG VOLTAGE LEVEL VOLTAGE LEVEL > 0.3125V < 0.3125V 0.3125V V - ...

Page 13

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications Digital Outputs (D0P/N–D9P/N, DCLKP/N, ORP/N) and Control Input T /B The digital outputs D0P/N–D9P/N, DCLKP/N, and ORP/N are LVDS compatible, and data on D0P/N–D9P/N is presented in either binary ...

Page 14

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications SINGLE-ENDED 0.1μF INPUT TERMINAL Figure 8. Transformer-Coupled Analog Input Configuration with Secondary-Side Termination determined resistor value between REFADJ and REFIO increases the full-scale range of the data converter. Figure ...

Page 15

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications BYPASSING—ADC LEVEL AV CC 0.1μF AGND MAX1124 AGND NOTE: EACH POWER-SUPPLY PIN (ANALOG AND DIGITAL) SHOULD BE DECOUPLED WITH AN INDIVIDUAL 0.1μF CAPACITOR CLOSE TO THE ADC. Figure 10. ...

Page 16

Analog-to-Digital Converter with LVDS Outputs for Wideband Applications 100Ω characteristic impedance from the ADC to the LVDS load device. Static Parameter Definitions Integral Nonlinearity (INL) Integral nonlinearity is the deviation of the values on an actual transfer ...

Page 17

... 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 ____________________ 17 © 2008 Maxim Integrated Products DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc ...

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