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AD7693BCPZ

更新时间： 2024-11-05 13:05:23
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16-Bit, +/-0.65 LSB INL, 500 kSPS PulSAR®  
Differential ADC in MSOP/QFN  
Preliminary Technical Data  
AD7693  
FEATURES  
APPLICATION DIAGRAM  
+2.5V TO +5V  
+5V  
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 VREF with VREF up to VDD on both inputs  
No pipeline delay  
VIO  
SDI  
+1.8V TO VDD  
REF VDD  
GND  
IN+  
IN–  
3- OR 4-WIRE  
SCK  
SDO  
CNV  
INTERFACE  
±10V, ±5V, ...  
(SPI, DAISY CHAIN, CS)  
ADA4941-1  
AD7693  
Figure 2.  
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 QFN1 (LFCSP) (SOT-23 size)  
Table 1. MSOP, QFN1 (LFCSP)/SOT-23  
14-/16-/18-Bit PulSAR ADC  
400 kSPS  
to  
500 kSPS Driver  
100  
kSPS  
250  
kSPS  
ADC  
Type  
18-Bit  
AD7691  
AD7690  
ADA4941-1  
ADA4841-x  
ADA4941-1  
ADA4841-x  
16-Bit True  
Differential  
AD7684 AD7687  
AD7688  
AD7693  
AD7686  
16-Bit Pseudo AD7683 AD7685  
ADA4841-x  
Pin-for-pin compatible with the AD7687, AD7688 and 18-bit  
AD7690 and AD7691  
Differential/  
Unipolar  
AD7680 AD7694  
14-Bit  
AD7940 AD7942  
AD7946  
ADA4841-x  
APPLICATIONS  
1 QFN package in development. Contact sales for samples and availability.  
Battery-powered equipment  
Data acquisitions  
GENERAL DESCRIPTION  
Seismic data acquisition systems  
DVMs  
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.  
Instrumentation  
Medical instruments  
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 QFN1  
(LFCSP) with operation specified from −40°C to +85°C.  
Figure 1. Integral Nonlinearity vs. Code  
1 QFN package in development. Contact sales for samples and availability.  
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 registeredtrademarks arethe 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  
www.analog.com  
©2006 Analog Devices, Inc. All rights reserved.  
 
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AD7693BCPZ 替代型号

型号 品牌 替代类型 描述 数据表
AD7686BRMZ ADI

完全替代

 16-Bit, 500 kSPS PulSAR ADC in MSOP
AD7693BRMZ ADI

完全替代

 16-Bit, ±0.5 LSB, 500 kSPS PulSAR® Differen
AD7686CRMZ ADI

完全替代

 16-Bit, 500 kSPS PulSAR ADC in MSOP/QFN

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