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| 型号： | EVAL-AD7799EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 24/28页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7799 |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 470 |
| 数据接口： | 串行 |
| 输入范围： | ±VREF/增益 |
| 在以下条件下的电源（标准）： | 2.5mW @ 470SPS |
| 工作温度： | -40°C ~ 105°C |
| 已用 IC / 零件： | AD7799 |
| 已供物品： | 板，缆线，CD |
| 相关产品： | AD7799BRU-REEL-ND - IC ADC 24BIT 3CH LP 16-TSSOP AD7799BRUZ-REEL-ND - IC ADC 24BIT 3CH LP 16-TSSOP AD7799BRUZ-ND - IC ADC 24BIT SIG-DEL 3CH 16TSSOP AD7799BRU-ND - IC ADC 24BIT 3CH LP 16-TSSOP |
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Data Sheet
AD7798/AD7799
Rev. B | Page 5 of 28
Parameter
AD7798B/AD7799B1
Unit
Test Conditions/Comments
SYSTEM CALIBRATION2
Full-Scale Calibration Limit
1.05 × FS
V max
FS = Full-scale analog input. When VREF = AVDD, the
differential input must be limited to (0.9 × VREF/gain)
if the in-amp is active.
Zero-Scale Calibration Limit
1.05 × FS
V min
Input Span
0.8 × FS
V min
2.1 × FS
V max
POWER REQUIREMENTS7
Power Supply Voltage
AVDD – GND
2.7/5.25
V min/max
DVDD – GND
2.7/5.25
V min/max
Power Supply Currents
IDD Current
140
A max
Unbuffered mode, 110 A typ @ AVDD = 3 V,
125 A typ @ AVDD = 5 V
180
A max
Buffered mode, gain = 1 or 2, 130 A typ @ AVDD = 3 V,
165 A typ @ AVDD = 5 V
400
A max
AD7798: gain = 4 to 128, 300 A typ @ AVDD = 3 V,
350 A typ @ AVDD = 5 V
500
A max
AD7799: gain = 4 to 128, 380 A typ @ AVDD = 3 V,
440 A typ @ AVDD = 5 V
IDD (Power-Down Mode)
1
A max
1
Temperature range is –40°C to +105°C. At the 19.6 Hz and 39.2 Hz update rates, the INL, power supply rejection (PSR), common-mode rejection (CMR), and normal
mode rejection (NMR) do not meet the data sheet specification if the voltage on the AIN(+) or AIN() pins exceeds AVDD 1.6 V typically. When this voltage is
exceeded, the INL, for example, is reduced to 18 ppm of FS typically and the PSR is reduced to 69 dB typically. Therefore, for guaranteed performance at these update
rates, the absolute voltage on the analog input pins needs to be below AVDD 1.6 V.
2
Specification is not production tested, but is supported by characterization data at initial product release.
3
Following a calibration, this error is in the order of the noise for the programmed gain and update rate selected.
4
Recalibration at any temperature removes these errors.
5
Full-scale error applies to both positive and negative full-scale and applies at the factory calibration conditions (AVDD = 4 V, gain = 1, TA = 25°C).
6
FS[3:0] are the four bits used in the mode register to select the output word rate.
7
Digital inputs equal to DVDD or GND.
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| EVAL-AD7839EBZ | 功能描述:BOARD EVAL FOR AD7839 RoHS:是 类别:编程器，开发系统 >> 评估板 - 数模转换器 (DAC) 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- DAC 的数量:4 位数:12 采样率（每秒）:- 数据接口:串行，SPI? 设置时间:3µs DAC 型:电流/电压 工作温度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
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