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AD9051 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer AD9051
Beschreibung 10-Bit/ 60 MSPS A/D Converter
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 12 Seiten
AD9051 Datasheet, Funktion
a
FEATURES
60 MSPS Sampling Rate
9.3 Effective Number of Bits at fIN = 10.3 MHz
250 mW Total Power at 60 MSPS
Selectable Input Bandwidth of 50 MHz or 130 MHz
On-Chip T/H and Voltage Reference
Single 5 V Supply Voltage
5 V or 3 V Logic I/O Compatible
Input Range and Output Coding Options Available
APPLICATIONS
Medical Imaging
Digital Communications
Professional Video
Instrumentation
Set-Top Box
10-Bit, 60 MSPS
A/D Converter
AD9051
FUNCTIONAL BLOCK DIAGRAM
AINB
AIN
ENCODE
BWSEL 5V GND
5V
AD9051
IN OUT
REFERENCE
CIRCUITS
T/H
TIMING
SUM
AMP
ADC
DAC
ADC
DECODE
LOGIC
10
GENERAL DESCRIPTION
The AD9051 is a complete 10-bit monolithic sampling analog-
to-digital converter (ADC) with an onboard track-and-hold and
reference. The unit is designed for low cost, high performance
applications and requires only 5 V and an encode clock to
achieve 60 MSPS sample rates with 10-bit resolution.
The encode clock is TTL compatible and the digital outputs are
CMOS; both can operate with 5 V/3 V logic. The two-step
architecture used in the AD9051 is optimized to provide the
best dynamic performance available while maintaining low
power consumption.
A 2.5 V reference is included onboard, or the user can provide
an external reference voltage for gain control or matching of
multiple devices. Fabricated on a state-of-the-art BiCMOS
process, the AD9051 is packaged in a space saving surface
mount package (SSOP) and is specified over the industrial tem-
perature range (–40°C to +85°C).
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/461-3113
© Analog Devices, Inc.,2010






AD9051 Datasheet, Funktion
Pin No.
1, 6, 7, 12, 21, 23
2, 8, 11
3
4
5
9
10
13
14
15
16–19
20, 22
24–27
28
Mnemonic
GND
VD
VREFOUT
VREFIN
BWSEL
AINB
AIN
ENCODE
OR
D9 (MSB)
D8–D5
VDD
D4–D1
D0 (LSB)
AD9051
PIN FUNCTION DESCRIPTIONS
Description
Ground
Analog 5 V Power Supply
Internal Bandgap Voltage Reference (Nominally 2.5 V)
Input to Reference Amplifier. Voltage reference for ADC is connected here.
Bandwidth Select. NC = 130 MHz nominal. +VD = 50 MHz nominal.
Complementary Analog Input Pin (Analog Input Bar)
Analog Input Pin
Encode Clock Input to ADC. Internal T/H is placed in hold mode (ADC is encoding)
on rising edge of encode signal.
Out of Range Signal. Logic “0” when analog input is in nominal range. Logic “1” when
analog input is out of nominal range.
Most Significant Bit of ADC Output
Digital Output Bits of ADC
Digital Output Power Supply (Only Used by Digital Outputs)
Digital Output Bits of ADC
Least Significant Bit of ADC Output
PIN CONFIGURATION
GND 1
28 D0 (LSB)
VD 2
VREFOUT 3
27 D1
26 D2
VREFIN 4
25 D3
BWSEL 5
24 D4
GND
GND
VD
6 23 GND
7 AD9051 22 VDD
TOP VIEW
8 (Not to Scale) 21 GND
AINB 9
20 VDD
AIN 10
19 D5
VD 11
GND 12
18 D6
17 D7
ENCODE 13
OR 14
16 D8
15 D9 (MSB)
N
N+1
N+2
N+3
N+4
N+5
AIN
ENCODE
DIGITAL
OUTPUTS
tA
tEH tEL
tPD
N–5
N–4
N–3
N–2
N–1
N
Figure 1. Timing Diagram
VD
VD
AINB (PIN 9)
AIN (PIN 10)
12k12kINPUT
BUFFER
12k12k
ENCODE
(PIN 13)
Analog Input
VDD (PINS 20, 22)
+3V TO +5V
Encode
VD
D0D9, OR
VREFOUT
(PIN 3)
Output Stage
VREF
Figure 2. Equivalent Circuits
REV. C
–5–

6 Page









AD9051 pdf, datenblatt
OUTLINE DIMENSIONS
10.50
10.20
9.90
28 15
5.60
5.30
5.00 8.20
7.80
1 7.40
14
2.00 MAX
0.05 MIN
COPLANARITY
0.10
0.65 BSC
0.38
0.22
1.85
1.75
1.65
SEATING
PLANE
0.25
0.09
0.95
0.75
0.55
COMPLIANT TO JEDEC STANDARDS MO-150-AH
Figure 7.28-Lead Shrink Small Outline Package [SSOP]
(RS-28)
Dimensions shown in millimeters
ORDERING GUIDE
Model1
AD9051BRS
AD9051BRS-2V
AD9051BRSRL
AD9051BRSZ
AD9051BRSZRL
AD9051BRSRL-2V
AD9051BRSZ-2V
AD9051BRSZRL-2V
Temperature Range
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
Package Description
28-Lead Shrink Small Outline Package (SSOP)
28-Lead Shrink Small Outline Package (SSOP)
28-Lead Shrink Small Outline Package (SSOP)
28-Lead Shrink Small Outline Package (SSOP)
28-Lead Shrink Small Outline Package (SSOP)
28-Lead Shrink Small Outline Package (SSOP)
28-Lead Shrink Small Outline Package (SSOP)
28-Lead Shrink Small Outline Package (SSOP)
1 Z = RoHS Compliant Part.
REVISION HISTORY
11/10—Rev. B to Rev. C
Changes to Specifications Section...................................................2
Deleted Evaluation Board Section ................................................10
Updated Outline Dimensions........................................................11
Changes to Ordering Guide...........................................................11
7/01—Rev. A to Rev. B
Edits to ABSOLUTE MAXIMUM RATINGS ...............................4
AD9051
Package Option
RS-28
RS-28
RS-28
RS-28
RS-28
RS-28
RS-28
RS-28
©2010 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D00558-0-11/10(C)
REV. C
–11–

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