Rainbow-electronics MAX1181 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Sensores Rainbow-electronics MAX1181. Rainbow Electronics MAX1181 User Manual Manual do Utilizador

  • Descarregar
  • Adicionar aos meus manuais
  • Imprimir
  • Página
    / 19
  • Índice
  • MARCADORES
  • Avaliado. / 5. Com base em avaliações de clientes
Vista de página 0
General Description
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 typical signal-to-noise ratio (SNR) of 59dB at an input
frequency 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 inter-
facing. The MAX1181 is available in a 7mm 7mm, 48-
pin 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.
Applications
High Resolution Imaging
I/Q Channel Digitization
Multichannel IF Undersampling
Instrumentation
Video Application
Features
Single +3V Operation
Excellent Dynamic Performance:
59dB SNR at f
IN
= 20MHz
73dB SFDR at f
IN
= 20MHz
Low Power:
82mA (Normal Operation)
2.8mA (Sleep Mode)
1µA (Shutdown Mode)
0.02dB Gain and 0.25° Phase Matching (typ)
Wide ±1Vp-p Differential Analog Input Voltage
Range
400MHz, -3dB Input Bandwidth
On-Chip +2.048V Precision Bandgap Reference
User-Selectable Output Format—Two’s
Complement or Offset Binary
48-Pin TQFP Package with Exposed Pad for
Improved Thermal Dissipation
Evaluation Kit Available
MAX1181
Dual 10-Bit, 80Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
________________________________________________________________ Maxim Integrated Products 1
D1A
D0A
OGND
OV
DD
OV
DD
OGND
D0B
D1B
D2B
D3B
D4B
D5B
COM
V
DD
GND
INA+
INA-
V
DD
GND
INB-
INB+
GND
V
DD
CLK
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
48 TQFP-EP
MAX1181
GND
V
DD
GND
V
DD
T/B
SLEEP
PD
OE
D9B
D8B
D7B
D6B
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
REFN
REFP
REFIN
REFOUT
D9A
D8A
D7A
D6A
D5A
D4A
D3A
D2A
Pin Configuration
Ordering Information
19-2093; Rev 0; 7/01
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.
PART TEMP. RANGE PIN-PACKAGE
MAX1181ECM -40°C to +85°C 48 TQFP-EP
Functional Diagram appears at end of data sheet.
Vista de página 0
1 2 3 4 5 6 ... 18 19

Resumo do Conteúdo

Página 1 - Ordering Information

General DescriptionThe MAX1181 is a +3V, dual 10-bit, analog-to-digitalconverter (ADC) featuring fully-differential widebandtrack-and-hold (T/H) input

Página 2 - ABSOLUTE MAXIMUM RATINGS

MAX1181Detailed DescriptionThe MAX1181 uses a nine-stage, fully-differentialpipelined architecture (Figure 1), that allows for high-speed conversion w

Página 3

noise filtering purposes, bypass REFIN with a >10nFcapacitor to GND. In internal reference mode, REFOUT,COM, REFP, and REFN become low-impedance ou

Página 4

MAX1181five clock cycle latency between any particular sampleand its corresponding output data. The output codingcan be chosen to be either straight o

Página 5 - MAX1181 toc03

of the MAX1181 small-series resistors (e.g., 100Ω), addto the digital output paths, close to the MAX1181. Figure 4 displays the timing relationship be

Página 6 - AMPLITUDE (dB)

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs14 _________________________________________________________

Página 7

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 8

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs16 _________________________________________________________

Página 9 - Pin Description

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 10 - Pin Description (continued)

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs18 _________________________________________________________

Página 11 - System Timing Requirements

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel OutputsMaxim cannot assume responsibility for use of any circuitry

Página 12

ELECTRICAL CHARACTERISTICS(VDD= +3V, OVDD= +2.5V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN througha 10kΩ

Página 13 - Applications Information

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 14 - Grounding, Bypassing

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs4 __________________________________________________________

Página 15

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 16 - Dynamic Parameter Definitions

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs6 __________________________________________________________

Página 17

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Página 18 - Chip Information

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs8 __________________________________________________________

Página 19 - Package Information

MAX1181Dual 10-Bit, 80Msps, +3V, Low-Power ADC withInternal Reference and Parallel Outputs____________________________________________________________

Comentários a estes Manuais

Sem comentários