900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Analog Devices Semiconductor Electronic Components Datasheet

AD9241 Datasheet

Complete 14-Bit/ 1.25 MSPS Monolithic A/D Converter

No Preview Available !

a
FEATURES
Monolithic 14-Bit, 1.25 MSPS A/D Converter
Low Power Dissipation: 60 mW
Single +5 V Supply
Integral Nonlinearity Error: 2.5 LSB
Differential Nonlinearity Error: 0.6 LSB
Input Referred Noise: 0.36 LSB
Complete: On-Chip Sample-and-Hold Amplifier and
Voltage Reference
Signal-to-Noise and Distortion Ratio: 78.0 dB
Spurious-Free Dynamic Range: 88.0 dB
Out-of-Range Indicator
Straight Binary Output Data
44-Pin MQFP
Complete 14-Bit, 1.25 MSPS
Monolithic A/D Converter
AD9241
FUNCTIONAL BLOCK DIAGRAM
VINA
VINB
CML
CAPT
CAPB
VREF
SENSE
SHA
CLK
AVDD
DVDD DRVDD
MDAC1
GAIN = 16
5
A/D
5
MDAC2
GAIN = 8
MDAC3
GAIN = 8
4
A/D
4
A/D
44
DIGITAL CORRECTION LOGIC
14
OUTPUT BUFFERS
A/D
4
MODE
SELECT
1V
AD9241
REFCOM
AVSS
DVSS DRVSS
OTR
BIT 1
(MSB)
BIT 14
(LSB)
PRODUCT DESCRIPTION
The AD9241 is a 1.25 MSPS, single supply, 14-bit analog-to-
digital converter (ADC). It combines a low cost, high speed
CMOS process and a novel architecture to achieve the resolution
and speed of existing hybrid implementations at a fraction of the
power consumption and cost. It is a complete, monolithic ADC
with an on-chip, high performance, low noise sample-and-hold
amplifier and programmable voltage reference. An external refer-
ence can also be chosen to suit the dc accuracy and temperature
drift requirements of the application. The device uses a multistage
differential pipelined architecture with digital output error correc-
tion logic to guarantee no missing codes over the full operating
temperature range.
The input of the AD9241 is highly flexible, allowing for easy
interfacing to imaging, communications, medical, and data-
acquisition systems. A truly differential input structure allows
for both single-ended and differential input interfaces of varying
input spans. The sample-and-hold amplifier (SHA) is equally
suited for both multiplexed systems that switch full-scale voltage
levels in successive channels as well as sampling single-channel
inputs at frequencies up to and beyond the Nyquist rate. Also,
the AD9241 performs well in communication systems employ-
ing Direct-IF Down Conversion since the SHA in the differen-
tial input mode can achieve excellent dynamic performance well
beyond its specified Nyquist frequency of 0.625 MHz.
A single clock input is used to control all internal conversion
cycles. The digital output data is presented in straight binary
output format. An out-of-range (OTR) signal indicates an over-
flow condition which can be used with the most significant bit
to determine low or high overflow.
PRODUCT HIGHLIGHTS
The AD9241 offers a complete single-chip sampling 14-bit,
analog-to-digital conversion function in a 44-pin Metric Quad
Flatpack.
Low Power and Single Supply
The AD9241 consumes only 60 mW on a single +5 V power
supply.
Excellent DC Performance Over Temperature
The AD9241 provides no missing codes, and excellent tempera-
ture drift performance over the full operating temperature range.
Excellent AC Performance and Low Noise
The AD9241 provides nearly 13 ENOB performance and has an
input referred noise of 0.36 LSB rms.
Flexible Analog Input Range
The versatile onboard sample-and-hold (SHA) can be configured
for either single-ended or differential inputs of varying input spans.
Flexible Digital Outputs
The digital outputs can be configured to interface with +3 V and
+5 V CMOS logic families.
REV. 0
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700 World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
© Analog Devices, Inc., 1997


Analog Devices Semiconductor Electronic Components Datasheet

AD9241 Datasheet

Complete 14-Bit/ 1.25 MSPS Monolithic A/D Converter

No Preview Available !

AD9241–SPECIFICATIONS
DC SPECIFICATIONS (AVDD = +5 V, DVDD = +5 V, DRVDD = +5 V, fSAMPLE = 1.25 MSPS, VREF = 2.5 V, VINB = 2.5 V,
TMIN to TMAX unless otherwise noted)
Parameter
AD9241
Units
RESOLUTION
14 Bits min
MAX CONVERSION RATE
1.25 MHz min
INPUT REFERRED NOISE
VREF = 1 V
VREF = 2.5 V
0.9 LSB rms typ
0.36 LSB rms typ
ACCURACY
Integral Nonlinearity (INL)
Differential Nonlinearity (DNL)
INL1
DNL1
No Missing Codes
Zero Error (@ +25°C)
Gain Error (@ +25°C)2
Gain Error (@ +25°C)3
± 2.5 LSB typ
± 0.6 LSB typ
± 1.0 LSB max
± 2.5 LSB typ
± 0.7 LSB typ
14 Bits Guaranteed
0.3 % FSR max
1.5 % FSR max
0.75 % FSR max
TEMPERATURE DRIFT
Zero Error
Gain Error2
Gain Error3
3.0 ppm/°C typ
20.0 ppm/°C typ
5.0 ppm/°C typ
POWER SUPPLY REJECTION
0.1 % FSR max
ANALOG INPUT
Input Span (with VREF = 1.0 V)
Input Span (with VREF = 2.5 V)
Input (VINA or VINB) Range
Input Capacitance
2
5
0
AVDD
16
V p-p min
V p-p max
V min
V max
pF typ
INTERNAL VOLTAGE REFERENCE
Output Voltage (1 V Mode)
Output Voltage Tolerance (1 V Mode)
Output Voltage (2.5 V Mode)
Output Voltage Tolerance (2.5 V Mode)
Load Regulation4
1
± 14
2.5
± 35
5.0
Volts typ
mV max
Volts typ
mV max
mV max
REFERENCE INPUT RESISTANCE
5
ktyp
POWER SUPPLIES
Supply Voltages
AVDD
DVDD
DRVDD
Supply Current
IAVDD
IDRVDD
IDVDD
+5 V (± 5% AVDD Operating)
+5 V (± 5% DVDD Operating)
+5 V (± 5% DRVDD Operating)
13.0 mA max (10 mA typ )
1.0 mA max (1 mA typ )
3.0 mA max (2 mA typ )
POWER CONSUMPTION
65 mW typ
85 mW max
NOTES
1VREF =1 V.
2Including internal reference.
3Excluding internal reference.
4Load regulation with 1 mA load current (in addition to that required by the AD9241).
Specification subject to change without notice.
–2– REV. 0


Part Number AD9241
Description Complete 14-Bit/ 1.25 MSPS Monolithic A/D Converter
Maker Analog Devices
Total Page 24 Pages
PDF Download

AD9241 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 AD9240 Monolithic A/D Converter
Analog Devices
2 AD9241 Complete 14-Bit/ 1.25 MSPS Monolithic A/D Converter
Analog Devices
3 AD9243 Monolithic A/D Converter
Analog Devices
4 AD9244 14-Bit 40/65 MSPS Monolithic A/D Converter
Analog Devices
5 AD9245 3V A/D Converter
Analog Devices
6 AD9246 Analog-to-Digital Converter
Analog Devices
7 AD9248 Dual A/D Converter
Analog Devices
8 AD9249 1.8 V ADC
Analog Devices





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy