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參數(shù)資料
| 型號： | ADA4941-1 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 16-Bit, +/-0.65 LSB INL, 500 kSPS PulSAR Differential ADC in MSOP/QFN |
| 中文描述： | 16位/ -0.65 LSB INL和500 kSPS的PulSAR系列差分ADC，采用MSOP / QFN封裝 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 449K |
| 代理商： | ADA4941-1 |
16-Bit, +/-0.65 LSB INL, 500 kSPS PulSAR
Differential ADC in MSOP/QFN
Preliminary Technical Data
AD7693
FEATURES
16-bit resolution with no missing codes
Throughput: 500 kSPS
INL: +/-0.25 LSB typical, ±0.65 LSB max (±10 ppm of FSR)
Dynamic range: 96.5 dB typical @ 500 kSPS
SINAD: 96 dB typical @ 1 kHz, REF = 5V
THD: 120 dB typical @ 1 kHz. REF = 5V
True differential analog input range: ±VREF
0 V to V
REF
with V
REF
up to V
DD
on both inputs
No pipeline delay
Single-supply 5 V operation with
1.8 V/2.5 V/3 V/5 V logic interface
Serial interface SPI/QSPI/MICROWIRE/DSP-compatible
Daisy-chain multiple ADCs and busy indicator
Power dissipation
4 mW @ 5 V/100 kSPS
40 μW @ 5 V/1 kSPS
Standby current: 1 nA
10-lead package: MSOP (MSOP-8 size) and
3 mm × 3 mm QFN
1
(LFCSP) (SOT-23 size)
Pin-for-pin compatible with the
AD7687, AD7688
and
18-bit
AD7690 and AD7691
APPLICATIONS
Battery-powered equipment
Data acquisitions
Seismic data acquisition systems
DVMs
Instrumentation
Medical instruments
Rev. PrB
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. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2006 Analog Devices, Inc. All rights reserved.
www.analog.com
APPLICATION DIAGRAM
AD7693
REF
GND
VDD
IN+
IN–
VIO
SDI
SCK
SDO
CNV
+1.8V TO VDD
3- OR 4-WIRE
+2.5V TO +5V
±10V,±5V, ...
+5V
ADA4941-1
-
Figure 2.
Table 1. MSOP, QFN
1
(LFCSP)/SOT-23
14-/16-/18-Bit PulSAR ADC
400 kSPS
to
500
kSPS
AD7690
100
kSPS
250
kSPS
AD7691
ADC
Driver
ADA4941-1
ADA4841-x
ADA4941-1
ADA4841-x
ADA4841-x
Type
18-Bit
AD7684
AD7687
AD7688
AD7693
AD7686
Figure 1. Integral Nonlinearity vs. Code
16-Bit True
Differential
16-Bit Pseudo
Differential/
Unipolar
14-Bit
1
QFN package in development. Contact sales for samples and availability.
GENERAL DESCRIPTION
AD7683
AD7680
AD7685
AD7694
AD7940
AD7942
AD7946
ADA4841-x
The AD7693 is a 16-bit, successive approximation, analog-to-
digital converter (ADC) that operates from a single power supply,
VDD. It contains a low power, high speed, 16-bit sampling ADC
with no missing codes, an internal conversion clock, and a
versatile serial interface port. On the CNV rising edge, it
samples the voltage difference between the IN+ and IN pins.
The voltages on these pins swing in opposite phase between 0 V
and REF. The reference voltage, REF, is applied externally and
can be set up to the supply voltage, VDD.
Its power scales linearly with throughput.
The SPI-compatible serial interface also features the ability,
using the SDI input, to daisy-chain several ADCs on a single,
3-wire bus and provides an optional busy indicator. It is compatible
with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate VIO supply.
The AD7693 is housed in a 10-lead MSOP or a 10-lead QFN
1
(LFCSP) with operation specified from 40°C to +85°C.
1
QFN package in development. Contact sales for samples and availability.
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|---|---|
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