参数资料
| 型号： | AD7984BCPZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 18BIT 1.33MSPS 10LFCSP |
| 设计资源： | Converting a Single-Ended Signal with AD7984 Differential PulSAR ADC (CN0033) |
| 标准包装： | 1 |
| 系列： | PulSAR® |
| 位数： | 18 |
| 采样率（每秒）： | 1.33M |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 14mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘，CSP |
| 供应商设备封装： | 10-LFCSP-WD（3x3） |
| 包装： | 标准包装 |
| 输入数目和类型： | 1 个差分，单极 |
| 其它名称： | AD7984BCPZ-RL7DKR |
18-Bit, 1.33 MSPS PulSAR 10.5 mW
ADC in MSOP/QFN
AD7984
Rev. A
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FEATURES
18-bit resolution with no missing codes
Throughput: 1.33 MSPS
Low power dissipation: 10.5 mW at 1.33 MSPS
INL: ±2.25 LSB maximum
Dynamic range: 99.7 dB typical
True differential analog input range: ±VREF
0 V to VREF with VREF between 2.9 V to 5.0 V
Allows use of any input range
Easy to drive with the ADA4941
No pipeline delay
Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic
interface
Serial interface SPI-/QSPI-/MICROWIRE-/DSP-compatible
Ability to daisy-chain multiple ADCs and busy indicator
10-lead MSOP (MSOP-8 size) and 10-lead 3 mm × 3 mm QFN
(LFCSP), SOT-23 size
APPLICATIONS
Battery-powered equipment
Data acquisition systems
Medical instruments
Seismic data acquisition systems
APPLICATION DIAGRAM
AD7984
REF
GND
VDD
IN+
IN–
VIO
SDI
SCK
SDO
CNV
1.8V TO 5V
ADA4941
3- OR 4-WIRE
INTERFACE
(SPI, CS
DAISY CHAIN)
2.9V TO 5V 2.5V
±10V, ±5V, ..
06
97
3-
00
1
Figure 1.
GENERAL DESCRIPTION
The AD7984 is an 18-bit, successive approximation, analog-to-
digital converter (ADC) that operates from a single power
supply, VDD. It contains a low power, high speed, 18-bit
sampling ADC and a versatile serial interface port. On the CNV
rising edge, the AD7984 samples the voltage difference between
the IN+ and IN pins. The voltages on these pins usually swing
in opposite phases between 0 V and VREF. 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,
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, and 5 V logic, using the separate VIO supply.
The AD7984 is available in a 10-lead MSOP or a 10-lead QFN
(LFCSP) with operation specified from 40°C to +85°C.
Table 1. MSOP, QFN (LFCSP) 14-/16-/18-Bit PulSAR ADC
Type
100 kSPS
250 kSPS
400 kSPS to 500 kSPS
≥1000 kSPS
ADC Driver
14-Bit
16-Bit
18-Bit
1 Pin-for-pin compatible.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7984BRMZ | 功能描述:IC ADC 18BIT 1.3MSPS SAR 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| AD7984BRMZ-RL7 | 功能描述:IC ADC 18BIT 1.3MSPS SAR 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
| AD7985 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit, 2.5 MSPS, PulSAR 15.5 mW ADC in LFCSP |
| AD7985BCPZ | 功能描述:IC ADC 16B 2.5MSPS PULSR 20LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 其它有关文件:TSA1204 View All Specifications 标准包装:1 系列:- 位数:12 采样率（每秒）:20M 数据接口:并联 转换器数目:2 功率耗散（最大）:155mW 电压电源:模拟和数字 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:Digi-Reel® 输入数目和类型:4 个单端，单极；2 个差分，单极 产品目录页面:1156 (CN2011-ZH PDF) 其它名称:497-5435-6 |
| AD7985BCPZ-RL7 | 功能描述:IC ADC 16B 2.5MSPS PULSR 20LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
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