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| 型号： | AD872ASE |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | ADC |
| 英文描述： | Complete 12-Bit 10 MSPS Monolithic A/D Converter |
| 中文描述： | 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, CQCC44 |
| 封装： | LCC-44 |
| 文件页数： | 1/20页 |
| 文件大小： | 330K |
| 代理商： | AD872ASE |
FUNCT IONAL BLOCK DIAGRAM
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
Complete 12-Bit 10 MSPS
Monolithic A/DConverter
AD872A
FEATURES
Monolithic 12-Bit 10 MSPS A/D Converter
Low Noise: 0.26 LSB RMS Referred-to-Input
No Missing Codes Guaranteed
Differential Nonlinearity Error: 0.5 LSB
Signal-to-Noise and Distortion Ratio: 68 dB
Spurious-Free Dynamic Range: 75 dB
Power Dissipation: 1.03 W
Complete: On-Chip Track-and-Hold Amplifier and
Voltage Reference
Twos Complement Binary Output Data
Out-of-Range Indicator
28-Lead Ceramic DIP or 44-Terminal Leadless Chip
Carrier Package
PRODUCT DE SCRIPT ION
T he AD872A is a monolithic 12-bit, 10 MSPS analog-to-digital
converter with an on-chip, high performance track-and-hold
amplifier and voltage reference. T he AD872A uses a multistage
differential pipelined architecture with error correction logic to
provide 12-bit accuracy at 10 MSPS data rates and guarantees
no missing codes over the full operating temperature range. T he
AD872A is a redesigned version of the AD872 which has been
optimized for lower noise. T he AD872A is pin compatible with
the AD872, allowing the parts to be used interchangeably as sys-
tem requirements change.
T he low noise input track-and-hold (T /H) of the AD872A is
ideally suited for high-end imaging applications. In addition, the
T /H’s high input impedance and fast settling characteristics al-
low the AD872A to easily interface with multiplexed systems
that switch multiple signals through a single A/D converter. T he
dynamic performance of the T /H also renders the AD872A suit-
able for sampling single channel inputs at frequencies up to and
beyond the Nyquist rate. T he AD872A provides both reference
output and reference input pins, allowing the onboard reference
to serve as a system reference. An external reference can also be
chosen to suit the dc accuracy and temperature drift require-
ments of the application. A single clock input is used to control
all internal conversion cycles. T he digital output data is pre-
sented in twos complement binary output format. An out-of-
range signal indicates an overflow condition, and can be used
with the most significant bit to determine low or high overflow.
T he AD872A is fabricated on Analog Devices’ ABCMOS-l
process that utilizes high speed bipolar and CMOS transistors
on a single chip.
T he AD872A is packaged in a 28-lead ceramic DIP and a 44-
terminal leadless ceramic surface mount package (LCC). Opera-
tion is specified from 0
°
C to +70
°
C and –55
°
C to +125
°
C.
PRODUCT HIGHLIGHT S
T he AD872A offers a complete single-chip sampling, 12-bit
10 MSPS analog-to-digital conversion function in a 28-lead DIP
or 44-terminal LCC.
Low Noise—
T he AD872A features 0.26 LSB rms referred to-
input noise.
Low Power—
T he AD872A at 1.03 W consumes a fraction of the
power of presently available hybrids.
On-Chip Track-and-Hold (T/H)—
T he low noise, high imped-
ance T /H input eliminates the need for external buffers and can
be configured for single-ended or differential inputs.
Ease of Use—
T he AD872A is complete with T /H and voltage
reference and is pin-compatible with the AD872.
Out of Range
(OT R)
—
T he OT R output bit indicates when the
input signal is beyond the AD872A’s input range.
4
4
3
4
CORRECTION LOGIC
+2.5V
REFERENCE
OUTPUT BUFFERS
*
OEN
OTR
*
MSB
BIT2–BIT12
REF GND
MSB
AV
DD
AGND
DGND
AV
SS
DV
DD
V
INA
V
INB
CLOCK
REF IN
*
ONLY AVAILABLE ON 44-TERMINAL SURFACE MOUNT PACKAGE
AD872A
T/H
DAC
A/D
A/D
T/H
DAC
A/D
T/H
A/D
DAC
*
DRV
DD
*
DRGND
REF OUT
+
+
+
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1997
相关PDF资料 |
PDF描述 |
|---|---|
| AD872 | Complete 12-Bit 10MSPS Monolithic A/D Converter(12位10MSPS单片A/D转换器) |
| AD8801 | Octal 8-Bit TrimDAC with Power Shutdown(带电源关断的八路8位微调D/A转换器) |
| AD8803 | Octal 8-Bit TrimDAC with Power Shutdown(带电源关断八路8位微调D/A转换器) |
| AD8803AR | Octal 8-Bit TrimDAC with Power Shutdown |
| AD8803AN | Octal 8-Bit TrimDAC with Power Shutdown |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD872ASE/883B | 制造商:Analog Devices 功能描述:ADC Single Pipelined 10Msps 12-bit Parallel 44-Pin LCC 制造商:Rochester Electronics LLC 功能描述:IC, 12-BIT 10 MSPS ADC - Bulk |
| AD872JD | 制造商:Analog Devices 功能描述: |
| AD872JE | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 12-Bit |
| AD872SD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 12-Bit |
| AD872SD/883B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 12-Bit |
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