TA = TMIN
參數(shù)資料
型號： AD7265BSUZ-REEL7
廠商： Analog Devices Inc
文件頁數(shù)： 24/29頁
文件大?。?/td> 0K
描述： IC ADC 12BIT 3CHAN 1MSPS 32TQFP
設(shè)計(jì)資源： AD7265 in Differential and Single-Ended Configurations Using AD8022 (CN0048)
標(biāo)準(zhǔn)包裝： 500
位數(shù)： 12
采樣率（每秒）： 1M
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 2
功率耗散（最大）： 21mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 32-TQFP
供應(yīng)商設(shè)備封裝： 32-TQFP（7x7）
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 12 個(gè)單端，單極；6 個(gè)差分，單極；6 個(gè)偽差分，單極
AD7265
Rev. A | Page 3 of 28
SPECIFICATIONS
TA = TMIN to TMAX, VDD = 2.7 V to 5.25 V, fSCLK = 16 MHz, fS = 1 MSPS, VDRIVE = 2.7 V to 5.25 V; specifications apply using internal
reference or external reference = 2.5 V ± 1%, unless otherwise noted.1
Table 1.
Parameter
Specification
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)2
71
dB min
fIN = 50 kHz sine wave; differential mode
69
dB min
fIN = 50 kHz sine wave; single-ended and
pseudo differential modes
Signal-to-Noise + Distortion Ratio (SINAD)2
70
dB min
fIN = 50 kHz sine wave; differential mode
68
dB min
fIN = 50 kHz sine wave; single-ended and
pseudo differential modes
Total Harmonic Distortion (THD)2
–77
dB max
fIN = 50 kHz sine wave; differential mode
–73
dB max
fIN = 50 kHz sine wave; single-ended and
pseudo differential modes
Spurious-Free Dynamic Range (SFDR)2
–75
dB max
fIN = 50 kHz sine wave
Intermodulation Distortion (IMD)2
fa = 30 kHz, fb = 50 kHz
Second-Order Terms
–88
dB typ
Third-Order Terms
–88
dB typ
Channel-to-Channel Isolation
–88
dB typ
SAMPLE AND HOLD
Aperture Delay3
11
ns max
Aperture Jitter3
50
ps typ
Aperture Delay Matching3
200
ps max
Full Power Bandwidth
33/26
MHz typ
@ 3 dB, VDD = 5 V/VDD = 3 V
3.5/3
MHz typ
@ 0.1 dB, VDD = 5 V/VDD = 3 V
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity2
±1
LSB max
±0.5 LSB typ; differential mode
±1.5
LSB max
±0.5 LSB typ; single-ended and pseudo
differential modes
Differential Nonlinearity2,4
±0.99
LSB max
Differential mode
0.99/+1.5
LSB max
Single-ended and pseudo differential modes
Straight Binary Output Coding
Offset Error
±6
LSB max
Offset Error Match
±2
LSB typ
Gain Error
±2.5
LSB max
Gain Error Match
±0.5
LSB typ
Twos Complement Output Coding
Positive Gain Error
±2
LSB max
Positive Gain Error Match
±0.5
LSB typ
Zero Code Error
±5
LSB max
Zero Code Error Match
±1
LSB typ
Negative Gain Error
±2
LSB max
Negative Gain Error Match
±0.5
LSB typ
ANALOG INPUT
T
Single-Ended Input Range
0 V to VREF
V
RANGE pin low
0 V to 2 × VREF
RANGE pin high
Pseudo Differential Input Range: VIN+ VIN6
0 to VREF
V
RANGE pin low
2 × VREF
V
RANGE pin high
Fully Differential Input Range: VIN+ and VIN
VCM ± VREF/2
V
VCM = common-mode voltage7 = VREF/2
VIN+ and VIN
VCM ± VREF
V
VCM = VREF
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