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參數(shù)資料
| 型號(hào)： | EVAL-AD7470CB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Evaluation Board for 10-bit high speed, low power, successive-approximation ADC |
| 中文描述： | 評(píng)估板10位高速，低功耗，逐次逼近型ADC |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大?。?/td> | 722K |
| 代理商： | EVAL-AD7470CB |
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One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
REV. A
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Evaluation Board for 10-bit high speed,
lowpower, successive-approximation ADC
EVAL-AD7470CB
FUNCTIONAL BLOCK DIAGRAM
FEATURES
Full-Featured Evaluation Board for the AD7470
EVAL-CONTROL BOARD Compatible
HSC-INTERFACE BOARD Compatible
Stand Alone Capability
On-Board Analog Buffering and Reference
Optional On-Board Analog Bias-Up Circuit
Optional On-Board Burst Clock Generator Circuit
Various Linking Options
PC Software for Control and Data Analysis when used
with EVAL-CONTROL BOARD
INT R O D U C T IO N
T his T echnical Note describes the evaluation board for the
AD7470 10-bit, high speed, low power, successive approxi-
mation A/D converter that operates from a single 2.7 V to
5.25 V supply. Full data on the AD7470 is available in the
AD 7470 data sheet available from Analog D evices and
should be consulted in conjunction with this T echnical Note
when using the Evaluation Board.
On-board components include an AD780 which is a pin
programmable +2.5 V or +3 V ultra high precision bandgap
reference, two AD797 op-amps used to buffer the analog
input, and an OP07 op-amp used to buffer the DC bias
voltage applied to the optional analog input bias-up circuit.
T here are various link options which are explained in detail
on page 2.
Interfacing to this board is through a 96-way connector. T his
96-way connector is compatible with the EVAL-CONT ROL
BOARD which is also available from Analog D evices.
E xternal sockets are provided for the
CONVST
input,
CLK IN input and the VIN inputs.
OPE R AT ING T HE AD 7470 E VAL UAT ION BOAR D
Power Supplies
When using this evaluation board with the EVAL -C ON-
T ROL BOARD all supplies are provided from the EVAL-
CONT ROL BOARD through the 96 way connector.
When using the board as a stand alone unit or with the HSC-
INT ERFACE BOARD, external supplies must be provided.
T his evaluation board has five power supply inputs: V
DD
,
A
GND
, V
SS
, V
DRIVE
and D
GND
. +5 V must be connected to the
V
DD
input to supply the AV
DD
and DV
DD
pins on the AD7470,
the AD780 voltage reference, the positive supply pin of all
three op-amps and the digital control logic. 0 V is connected
to the A
GND
input. -5 V must be connected to the V
SS
input to
supply the negative supply pins on all three op-amps. T he
V
DRIVE
input can be used to provide an external voltage for the
output drivers on the AD7470. If an external V
DRIVE
is
supplied, it is referenced to the D
GND
input which should be
tied to 0 V. T he supplies are decoupled to the relevant ground
plane with 47μF tantalum and 0.1μF multilayer ceramic
capacitors at the point where they enter the board. T he supply
pins of the op-amps and reference are also decoupled to A
GND
with a 10μF tantalum and a 0.1μF ceramic capacitor. T he
AD7470 AV
DD
supply pin is decoupled to A
GND
with 10uF
tantalum and 0.1μF multilayer ceramic capacitors. T he
AD7470 DV
DD
and VDRIVE pins are decoupled to A
GND
with
10uF tantalum capacitors and to D
GND
with 0.1μF multilayer
ceramic capacitors.
Extensive ground planes are used on this board to minimize
the effect of high frequency noise interference. T here are two
ground planes, A
GND
and D
GND
. T hese are connected at one
location close to the AD7470.
Vin
Unipolar
Ain
Bipolar
Ain
Refin
Reference
Buffer
Bias-up
buffer
Clock
Generator
Circuits
40 pin HSC interface
9
B
Data Bus
Control Lines
AD7470 ADC
Power Supply Circuit
N
m
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EVAL-AD7470 | Evaluation Board for 10-/12-Bit High Speed, Low Power ADCs |
| EVAL-AD7470_07 | Evaluation Board for 10-/12-Bit High Speed, Low Power ADCs |
| EVAL-AD7472 | Evaluation Board for 12-bit high speed, low power, successive-approximation ADC |
| EVAL-AD7472CB | Evaluation Board for 12-bit high speed, low power, successive-approximation ADC |
| EVAL-AD7475CB3 | 1 MSPS, 12-Bit ADCs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-AD7470CB2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:1.75 MSPS, 4 mW 10-Bit/12-Bit Parallel ADCs |
| EVAL-AD7472 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Evaluation Board for 12-bit high speed, low power, successive-approximation ADC |
| EVAL-AD7472CB | 制造商:Analog Devices 功能描述:1.75 MSPS, 4 MW 10-BIT/12-BIT PARALLEL ADCS 制造商:Analog Devices 功能描述:EVAL BD FOR AD7472 ADC - Bulk |
| EVAL-AD7472CB2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:1.75 MSPS, 4 mW 10-Bit/12-Bit Parallel ADCs |
| EVAL-AD7472CBZ | 功能描述:BOARD EVAL FOR AD7472 RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:* 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
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