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参数资料
| 型号： | AD977CRZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 18/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT 100KSPS 20SOIC |
| 标准包装： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 100k |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 100mW |
| 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： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 管件 |
| 输入数目和类型： | 3 个单端，单极；3 个单端，双极 |
| 配用： | EVAL-AD977CB-ND - BOARD EVAL FOR AD977 EVAL-AD977ACB-ND - BOARD EVAL FOR AD977A |
–3–
REV. D
AD977/AD977A
A Grade
B Grade
C Grade
Parameter
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
±10 V, 0 V to 5 V, . . . (See Table II)
Impedance
See Table II
Sampling Capacitance
40
pF
THROUGHPUT SPEED
Complete Cycle
5
s
Throughput Rate
200
kHz
DC ACCURACY
Integral Linearity Error
±3
±2.0
±3
LSB
1
Differential Linearity Error
–2
+3
–1
+1.75
±2LSB
No Missing Codes
15
16
15
Bits
Transition Noise
2
1.0
LSB
Full-Scale Error
3, 4
±0.5
±0.25
±0.5
%
Full-Scale Error Drift
±7
ppm/
°C
Full-Scale Error
Ext. REF = 2.5 V
±0.5
±0.25
±0.5
%
Full-Scale Error Drift
Ext. REF = 2.5 V
±2
ppm/
°C
Bipolar Zero Error
3
Bipolar Ranges
±10
±15
mV
Bipolar Zero Error Drift
Bipolar Ranges
±2
ppm/
°C
Unipolar Zero Error
3
Unipolar Ranges
±10
mV
Unipolar Zero Error Drift
Unipolar Ranges
±2
ppm/
°C
Recovery to Rated Accuracy
After Power-Down
5
2.2
F to CAP
1
ms
Power Supply Sensitivity
VANA = VDIG = VD = 5 V
± 5%
±8
±8LSB
AC ACCURACY
Spurious Free Dynamic Range
6
90
96
90
dB
7
Total Harmonic Distortion
6
–90
–96
–90
dB
Signal-to-(Noise+Distortion)
6
83
85
83
dB
–60 dB Input
27
28
27
dB
Signal-to-Noise
6
83
85
83
dB
Full Power Bandwidth
8
1
MHz
–3 dB Input Bandwidth
2.7
MHz
SAMPLING DYNAMICS
Aperture Delay
40
ns
Transient Response, Full-Scale Step
1
s
Overvoltage Recovery
9
150
ns
REFERENCE
Internal Reference Voltage
2.48
2.5
2.52
2.48
2.5
2.52
2.48
2.5
2.52
V
Internal Reference Source Current
1
A
External Reference Voltage Range
for Specified Linearity
2.3
2.5
2.7
2.3
2.5
2.7
2.3
2.5
2.7
V
External Reference Current Drain
Ext. REF = 2.5 V
1.2
mA
NOTES
1LSB means Least Significant Bit. With a
±10 V input, one LSB is 305 V.
2Typical rms noise at worst case transitions and temperatures.
3Measured with fixed resistors as shown in Figures 11, 12 and 13. Adjustable to zero. Tested at room temperature.
4Full-Scale Error is expressed as the % difference between the actual full-scale code transition voltage and the ideal full scale transition voltage, and includes the effect of offset
error. For bipolar input ranges, the Full-Scale Error is the worst case of either the –Full Scale or +Full Scale code transition voltage errors. For unipolar input ranges, Full-Scale
Error is with respect to the +Full-Scale code transition voltage.
5External 2.5 V reference connected to REF.
6f
IN = 20 kHz, 0.5 dB down unless otherwise noted.
7All specifications in dB are referred to a full scale
±10 V input.
8Full-Power Bandwidth is defined as full-scale input frequency at which Signal-to-(Noise+Distortion) degrades to 60 dB, or 10 bits of accuracy.
9Recovers to specified performance after a 2
× F
S input overvoltage.
Specifications subject to change without notice.
AD977A–SPECIFICATIONS(–40 C to +85 C, F
S = 200 kHz, VDIG = VANA = 5 V, unless otherwise noted)
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