参数资料
型号: AD7951BCPZRL
厂商: Analog Devices Inc
文件页数: 27/32页
文件大小: 0K
描述: IC ADC 14BIT 1MSPS 48-LFCSP
标准包装: 2,500
系列: PulSAR®
位数: 14
采样率(每秒): 1M
数据接口: 串行,并联
转换器数目: 1
功率耗散(最大): 260mW
电压电源: 模拟和数字,双 ±
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-VFQFN 裸露焊盘,CSP
供应商设备封装: 48-LFCSP-VQ(7x7)
包装: 带卷 (TR)
输入数目和类型: 1 个差分,双极
AD7951
Data Sheet
Rev. A | Page 4 of 32
Parameter
Conditions/Comments
Min
Typ
Max
Unit
REFERENCE BUFFER
PDREF = high
REFBUFIN Input Voltage Range
2.4
2.5
2.6
V
EXTERNAL REFERENCE
PDREF = PDBUF = high
Voltage Range
REF
4.75
5
AVDD + 0.1
V
Current Drain
1 MSPS throughput
200
μA
TEMPERATURE PIN
Voltage Output
@ 25°C
311
mV
Temperature Sensitivity
1
mV/°C
Output Resistance
4.33
DIGITAL INPUTS
Logic Levels
VIL
0.3
+0.6
V
VIH
2.1
OVDD + 0.3
V
IIL
1
+1
μA
IIH
1
+1
μA
DIGITAL OUTPUTS
Data Format
Parallel or serial 14-bit
Pipeline Delay5
VOL
ISINK = 500 μA
0.4
V
VOH
ISOURCE = –500 μA
OVDD 0.6
V
POWER SUPPLIES
Specified Performance
AVDD
4.756
5
5.25
V
DVDD
4.75
5
5.25
V
OVDD
2.7
5.25
V
VCC
7
15
15.75
V
VEE
15.75
15
0
V
Operating Current7, 8
@ 1 MSPS throughput
AVDD
With Internal Reference
20
mA
With Internal Reference Disabled
18.5
mA
DVDD
7
mA
OVDD
0.5
mA
VCC
VCC = 15 V, with internal reference buffer
4
mA
VCC = 15 V
3
mA
VEE
VEE = 15 V
2
mA
Power Dissipation
@ 1 MSPS throughput
With Internal Reference
PDREF = PDBUF = low
235
260
mW
With Internal Reference Disabled
PDREF = PDBUF = high
215
240
mW
In Power-Down Mode9
PD = high
10
μW
TEMPERATURE RANGE10
Specified Performance
TMIN to TMAX
40
+85
°C
1 With VIN = 0 V to 5 V or 0 V to 10 V ranges, the input current is typically 100 μA. In all input ranges, the input current scales with throughput. See the Analog Inputs section.
2 Linearity is tested using endpoints, not best fit. All linearity is tested with an external 5 V reference.
3 LSB means least significant bit. All specifications in LSB do not include the error contributed by the reference.
4 All specifications in dB are referred to a full-scale range input, FSR. Tested with an input signal at 0.5 dB below full-scale, unless otherwise specified.
5 Conversion results are available immediately after completed conversion.
6 4.75 V or VREF – 0.1 V, whichever is larger.
7 Tested in parallel reading mode.
8 With internal reference, PDREF = PDBUF = low; with internal reference disabled, PDREF = PDBUF = high. With internal reference buffer, PDBUF = low.
9 With all digital inputs forced to OVDD.
10 Consult sales for extended temperature range.
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