參數(shù)資料
型號(hào)： AD976ABN
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 9/16頁(yè)
文件大?。?/td> 0K
描述： IC ADC 16BIT 200KSPS 28-DIP
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 16
采樣率（每秒）： 200k
數(shù)據(jù)接口： 并聯(lián)
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
安裝類型： 通孔
封裝/外殼： 28-DIP（0.600"，15.24mm）
供應(yīng)商設(shè)備封裝： 28-PDIP
包裝： 管件
輸入數(shù)目和類型： 1 個(gè)單端，雙極
配用： EVAL-AD976CB-ND - BOARD EVAL FOR AD976
EVAL-AD976ACB-ND - BOARD EVAL FOR AD976A
AD976/AD976A
–2–
REV. C
AD976A–SPECIFICATIONS
AD976AA
AD976AB
AD976AC
Parameter
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Units
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
±10
V
Impedance
13
k
Capacitance
22
pF
THROUGHPUT SPEED
Complete Cycle
5
s
Throughput Rate
200
kHz
DC ACCURACY
Integral Linearity Error
±3
±2
±3
LSB
1
Differential Linearity Error
–2
+3
–1
+1.75
±2
LSB
No Missing Codes
15
16
15
Bit
Transition Noise
2
1.0
LSB
Full-Scale Error3, 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 Error4
±10
±15
mV
Bipolar Zero Error Drift
±2
ppm/
°C
Power Supply Sensitivity
VANA = VDIG = VD = 5 V ± 5%
±8
LSB
AC ACCURACY
Spurious Free Dynamic Range5
90
96
90
dB6
Total Harmonic Distortion5
–90
–96
–90
dB
Signal to (Noise + Distortion)
5
83
85
83
dB
–60 dB Input
27
28
27
dB
Signal to Noise5
83
85
83
dB
Full-Power Bandwidth
7
1
MHz
Input Bandwidth
2.7
MHz
SAMPLING DYNAMICS
Aperture Delay
40
ns
Transient Response
Full-Scale Step
1
s
Overvoltage Recovery
8
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
100
A
DIGITAL INPUTS
Logic Levels
VIL
–0.3
+0.8
–0.3
+0.8
–0.3
+0.8
V
VIH
+2.0
VDIG + 0.3
+2.0
VDIG + 0.3
+2.0
VDIG + 0.3
V
IIL
±10
A
IIH
±10
A
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 Figure 5 (AD976) and Figure 6 (AD976A). Adjustable to zero as shown in Figure 7.
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. The full-scale error is the worst case of either the –full-scale or +full-scale code transition voltage errors.
5f
IN = 20 kHz (AD976) and fIN = 45 kHz (AD976A), 0.5 dB down, unless otherwise noted.
6All specifications in dB are referred to a full scale
±10 V input.
7Full-power bandwidth is defined as full-scale input frequency at which signal-to-(noise + distortion) degrades to 60 dB or 10 bits of accuracy.
8Recovers to specified performance after a 2
× F
S input overvoltage.
Specifications subject to change without notice.
(–40 C to +85 C, FS = 200 kHz, Ref = Internal Reference, VDIG = VANA = +5 V unless
otherwise noted)
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