VDD = 2.7 V to 3.6 V, f
參數(shù)資料
型號: AD7452BRT-R2
廠商: Analog Devices Inc
文件頁數(shù): 24/29頁
文件大?。?/td> 0K
描述: IC ADC 12BIT 555KSPS SOT23-8
標準包裝: 1
位數(shù): 12
采樣率(每秒): 555k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 7.25mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-8
供應商設備封裝: SOT-23-8
包裝: 剪切帶 (CT)
輸入數(shù)目和類型: 2 個單端,單極;1 個差分,單極
其它名稱: AD7452BRT-R2CT
AD7452
Rev. B | Page 3 of 28
AD7452–SPECIFICATIONS
VDD = 2.7 V to 3.6 V, fSCLK = 10 MHz, fS = 555 kSPS, VREF = 2.0 V; VDD = 4.75 V to 5.25 V, fSCLK = 10 MHz, fS = 555 kSPS, VREF = 2.5 V;
VCM1 = VREF
A
MIN
MAX
; T = T
to T
, unless otherwise noted.
Table 1.
Parameter
Test Conditions/Comments
Unit
DYNAMIC PERFORMANCE
fIN = 100 kHz
Signal-to-(Noise + Distortion) (SINAD)3
70
dB min
Total Harmonic Distortion (THD)3
VDD = 4.75 V to 5.25 V, –86 dB typ
–76
dB max
VDD = 2.7 V to 3.6 V, –84 dB typ
–74
dB max
Peak Harmonic or Spurious Noise3
VDD = 4.75 V to 5.25 V, –86 dB typ
–76
dB max
VDD = 2.7 V to 3.6 V, –84 dB typ
–74
dB max
Intermodulation Distortion (IMD)3
fa = 90 kHz, fb = 110 kHz
Second-Order Terms
–89
dB typ
Third-Order Terms
–89
dB typ
Aperture Delay3
5
ns typ
Aperture Jitter3
50
ps typ
Full Power Bandwidth3, 4
@ –3 dB
20
MHz typ
@ –0.1 dB
2.5
MHz typ
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity (INL) 3
±1
LSB max
Differential Nonlinearity (DNL) 3
Guaranteed no missed codes to 12 bits
± 0.95
LSB max
Zero-Code Error3
±6
LSB max
Positive Gain Error3
±2
LSB max
Negative Gain Error3
±2
LSB max
ANALOG INPUT
Full-Scale Input Span
2 × VREF 5
VIN+ – VIN–
V
Absolute Input Voltage
VIN+
VCM = VREF
VCM1 ± VREF/2
V
VIN–
VCM = VREF
VCM1 ± VREF/2
V
DC Leakage Current
±1
A max
Input Capacitance
When in track/hold
30/10
pF typ
REFERENCE INPUT
VREF Input Voltage
VDD = 4.75 V to 5.25 V (±1% tolerance for
specified performance)
2.56
V
VDD = 2.7 V to 3.6 V (±1% tolerance for
specified performance)
2.07
V
DC Leakage Current
±1
A max
VREF Input Capacitance
When in track/hold
10/30
pF typ
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
Input Low Voltage, VINL
0.8
V max
Input Current, IIN
Typically 10 nA, VIN = 0 V or VDD
±1
A max
Input Capacitance, CIN 8
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDD = 4.75 V to 5.25 V, ISOURCE = 200 A
2.8
V min
VDD = 2.7 V to 3.6 V, ISOURCE = 200 A
2.4
V min
Output Low Voltage, VOL
ISINK = 200 A
0.4
V max
Floating-State Leakage Current
±1
A max
Floating-State Output Capacitance8
10
pF max
Output Coding
Twos Complement
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