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参数资料
| 型号： | EVAL-AD7988-5SDZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | BAORD EVAL FOR AD7988-5 |
| 标准包装： | 1 |
| 系列： | PulSAR® |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 500k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 输入范围： | 0 ~ VREF |
| 在以下条件下的电源（标准）： | 3.5mW @ 500kSPS |
| 工作温度： | -40°C ~ 125°C |
| 已用 IC / 零件： | AD7988-5 |
| 已供物品： | 板 |
16-Bit Lower Power
PulSAR ADCs in MSOP/LFCSP (QFN)
Data Sheet
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
2012–2013 Analog Devices, Inc. All rights reserved.
FEATURES
Low power dissipation
400 W at 100 kSPS (VDD only)
700 W at 100 kSPS (total)
2 mW at 500 kSPS (VDD only)
3.5 mW at 500 kSPS (total)
16-bit resolution with no missing codes
Throughput: 100 kSPS/500 kSPS options
INL: ±0.6 LSB typical, ±1.25 LSB maximum
SINAD: 91.5 dB at 10 kHz
THD: 114 dB at 10 kHz
Pseudo differential analog input range
0 V to VREF with VREF from 2.5 V to 5.5 V
Any input range and easy to drive with the ADA4841-1
No pipeline delay
Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic
interface
SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface
Daisy-chain multiple ADCs
10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP (QFN), same
space as SOT-23
Wide operating temperature range: 40°C to +125°C
APPLICATIONS
Battery-powered equipment
Low power data acquisition systems
Portable medical instruments
ATE equipment
Data acquisitions
Communications
GENERAL DESCRIPTION
The AD7988-1/AD7988-5 are 16-bit, successive approximation,
analog-to-digital converters (ADC) that operate from a single
power supply, VDD. The AD7988-1 offers a 100 kSPS throughput,
and the AD7988-5 offers a 500 kSPS throughput. They are low
power, 16-bit sampling ADCs with a versatile serial interface
port. On the CNV rising edge, they sample an analog input,
IN+, between 0 V to VREF with respect to a ground sense, IN.
The reference voltage, REF, is applied externally and can be set
independent of the supply voltage, VDD.
The SPI-compatible serial interface also features the ability to
daisy-chain several ADCs on a single 3-wire bus using the SDI
input. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic using
the separate supply, VIO.
The AD7988-1/AD7988-5 generics are housed in a 10-lead
MSOP or a 10-lead LFCSP (QFN) with operation specified
from 40°C to +125°C.
Table 1. MSOP, LFCSP (QFN) 14-/16-/18-Bit PulSAR ADCs
Bits
100 kSPS
250 kSPS
400 kSPS to
500 kSPS
≥1000
kSPS
ADC Driver
181
1
True differential.
2
Pin-for-pin compatible.
3
Pseudo differential.
TYPICAL APPLICATION DIAGRAM
REF
GND
VDD
IN+
IN–
VIO
SDI
SCK
SDO
CNV
1.8V TO 5.5V
3- OR 4-WIRE INTERFACE
(SPI, DAISY CHAIN, CS)
2.5V TO 5V
2.5V
0V TO VREF
10231-
001
AD7988-1/
AD7988-5
Figure 1.
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