參數(shù)資料
型號(hào)： AD977ABRSZRL
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 18/24頁(yè)
文件大?。?/td> 0K
描述： IC ADC 16BIT 200KSPS 28SSOP
標(biāo)準(zhǔn)包裝： 1,500
位數(shù)： 16
采樣率（每秒）： 200k
數(shù)據(jù)接口： 串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 100mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 28-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 28-SSOP
包裝： 帶卷 (TR)
輸入數(shù)目和類(lèi)型： 3 個(gè)單端，單極；3 個(gè)單端，雙極
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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