参数资料
型号: EVAL-AD7986EBZ
厂商: Analog Devices Inc
文件页数: 22/28页
文件大小: 0K
描述: BOARD EVAL FOR AD7986
产品培训模块: Motor Control
标准包装: 1
系列: PulSAR®
ADC 的数量: 1
位数: 18
采样率(每秒): 2M
数据接口: 串行
输入范围: ±VREF
在以下条件下的电源(标准): 29mW @ 2MSPS
工作温度: -40°C ~ 85°C
已用 IC / 零件: AD7986
已供物品:
AD7986
Rev. B | Page 3 of 28
SPECIFICATIONS
AVDD = DVDD = 2.5 V, BVDD = 5 V, VIO = 1.8 V to 2.7 V, VREF = 4.096 V, TA = 40°C to +85°C, unless otherwise noted.
Table 2.
Parameter
Conditions
Min
Typ
Max
Unit
RESOLUTION
18
Bits
ANALOG INPUT
Voltage Range
(IN+) (IN)
V
REF
+V
REF
V
Absolute Input Voltage
IN+, IN
0.1
V
REF + 0.1
V
Common-Mode Input Range
IN+, IN
V
REF × 0.475
V
REF × 0.5
V
REF × 0.525
V
Analog Input CMRR
f
IN = 500 kHz
100
Leakage Current at 25°C
Acquisition phase
250
nA
Input Impedance
See the Analog Inputs section
ACCURACY
No Missing Codes
18
Bits
Differential Linearity Error
0.95
±0.60
+1.50
LSB2
Integral Linearity Error
2.50
±1.00
+2.50
LSB2
Transition Noise
2.0
LSB2
Gain Error, T
MIN to TMAX
20
±2.4
+20
LSB2
Gain Error Temperature Drift
±0.5
ppm/°C
Zero Error, T
MIN to TMAX
0.8
+0.8
mV
Zero Temperature Drift
±0.3
ppm/°C
Power Supply Sensitivity
AVDD = 2.5 V ± 5%
±4
LSB2
THROUGHPUT
Conversion Rate
0
2.00
MSPS
Transient Response
Full-scale step
100
ns
AC ACCURACY
Dynamic Range
V
REF = 4.096 V, internal reference
95.5
96.5
V
REF = 5.0 V, external reference
97
98
Signal-to-Noise Ratio, SNR
f
IN = 20 kHz, VREF = 4.096 V, internal
reference
94.5
95.5
f
IN = 20 kHz, VREF = 5.0 V, external
reference
96.5
97.0
Spurious-Free Dynamic Range, SFDR
f
IN = 20 kHz
115
Total Harmonic Distortion4, THD
f
IN = 20 kHz, VREF = 4.096 V, internal
reference
113
f
IN = 20 kHz, VREF = 5.0 V, external
reference
114
Signal-to-(Noise + Distortion), SINAD
f
IN = 20 kHz, VREF = 4.096 V
94.5
95.5
SAMPLING DYNAMICS
3 dB Input Bandwidth
19
MHz
Aperture Delay
0.7
ns
1 All specifications expressed in decibels are referred to a full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
2 LSB means least significant bit. With the ±4.096 V input range, one LSB is 31.25 V.
3 See the Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference.
4 Tested fully in production at f
IN = 1 kHz.
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