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参数资料
型号： AD7669JRZ-REEL
厂商： Analog Devices Inc
文件页数： 12/20页
文件大小： 0K
描述： IC I/O PORT 8BIT ANLG 28SOIC
标准包装： 1,000
系列： LC²MOS
应用： 模拟 I/O
接口： 总线
电源电压： 4.75 V ~ 5.25 V
封装/外壳： 28-SOIC（0.295"，7.50mm 宽）
供应商设备封装： 28-SOIC W
包装： 带卷 (TR)
安装类型： 表面贴装
DAC SPECIFICATIONS
1
AD7569
J, A Versions
3
AD7569
AD7669
K, B
AD7569
Parameter
J Version
Versions
S Version
T Version
Units
Conditions/Comments
STATIC PERFORMANCE
Resolution
4
8
Bits
Total Unadjusted Error
5
±2
±3
LSB typ
Relative Accuracy
5
±1
±1/2
±1
±1/2
LSB max
Differential Nonlinearity
5
±1
±3/4
±1
±3/4
LSB max
Guaranteed Monotonic
Unipolar Offset Error
DAC data is all 0s; VSS = 0 V
@ +25
°C
±2
±1.5
±2
±1.5
LSB max
Typical tempco is 10
V/°C for +1.25 V range
TMIN to TMAX
±2.5
±2
±2.5
±2
LSB max
Bipolar Zero Offset Error
DAC data is all 0s; VSS = –5 V
@ +25
°C
±2
±1 5
±2
±1.5
LSB max
Typical tempco is 20
V/°C for ±1.25 V range
TMIN to TMAX
±2.5
±2
±2.5
±2
LSB max
Full-Scale Error
6 (AD7569 Only)
VDD = 5 V
@ +25
°C
±2
±1
±2
±1
LSB max
TMIN to TMAX
±3
±2
±4
±3
LSB max
Full-Scale Error
6 (AD7669 Only)
VDD = 5 V
@ +25
°C
±3
LSB max
TMIN to TMAX
±4.5
LSB max
DACA/DACB Full-Scale Error Match
6
(AD7669 Only)
±2.5
LSB max
VDD = 5 V
Full Scale/V
DD, TA = +25
°C
0.5
LSB max
VOUT = 2.5 V;
V
DD =
±5%
Full Scale/V
SS, TA = +25°C
0.5
LSB max
VOUT = –2.5 V; VSS = ± 5%
Load Regulation at Full Scale
0.2
LSB max
RL = 2 k to °/C
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio
5 (SNR)
44
46
44
46
dB min
VOUT = 20 kHz full-scale sine wave with fSAMPLING = 400 kHz
Total Harmonic Distortion
5 (THD)
48
dB max
VOUT = 20 kHz full-scale sine wave with fSAMPLING = 400 kHz
Intermodulation Distortion
5 (IMD)
55
dB typ
fa = 18.4 kHz, fb = 14.5 kHz with fSAMPLING = 400 kHz
ANALOG OUTPUT
Output Voltage Ranges
Unipolar
0 to +1.25/2.5
Volts
VDD = +5 V, VSS = 0 V
Bipolar
±1.25/±2.5
Volts
VDD = +5 V, VSS = –5 V
LOGIC INPUTS
CS
, X/B,WR, RANGE, RESET, DB0–DB7
Input Low Voltage, VINL
0.8
V max
Input High Voltage, VINH
2.4
V min
Input Leakage Current
10
A max
VIN = 0 to VDD
Input Capacitance
7
10
pF max
DB0–DB7
Input Coding (Single Supply)
Binary
Input Coding (Dual Supply)
2s Complement
AC CHARACTERlSTICS
7
Voltage Output Settling Time
Settling time to within
±1/2 LSB of final value
Positive Full-Scale Change
2
s max
Typically 1
s
Negative Full-Scale Change (Single Supply)
4
s max
Typically 2
s
Negative Full-Scale Change (Dual Supply)
2
s max
Typically 1
s
Digital-to-Analog Glitch Impulse
5
15
nV secs typ
Digital Feedthrough
5
1
nV secs typ
VIN to VOUT Isolation
60
dB typ
VIN = ± 2.5 V, 50 kHz Sine Wave
DAC to DAC Crosstalk
5 (AD7669 Only)
1
nV secs typ
DACA to DACB Isolation
5 (AD7669 Only)
–70
dB max
POWER REQUIREMENTS
VDD Range
4.75/5.25
V min/V max For Specified Performance
VSS Range (Dual Supplies)
–4.75/–5.25
–4.75/–5.25 –4.75/–5.25 –4.75/–5.25 V min/V max Specified Performance also applies to V SS = 0 V
for unipolar ranges.
IDD
VOUT = VIN = 2.5 V; Logic Inputs = 2.4 V; CLK = 0.8 V
(AD7569)
13
mA max
Output unloaded
(AD7669)
18
mA max
Outputs unloaded
ISS (Dual Supplies)
VOUT = VIN = –2.5 V; Logic Inputs = 2.4 V; CLK = 0.8 V
(AD7569)
4
mA max
Output unloaded
(AD7669)
6
mA max
Outputs unloaded
DAC/ADC MATCHING
Gain Matching
6
VIN to VOUT match with VIN = ± 2.5 V,
@ +25
°C
1
111% typ
20 kHz sine wave
TMIN to TMAX
1
111% typ
NOTES
1Specifications apply to both DACs in the AD7669. V
OUT applies to both VOUTA and VOUTB of the AD7669.
2Except where noted, specifications apply for all output ranges including bipolar ranges with dual supply operation.
3Temperature ranges as follows:
J, K versions; 0
°C to +70°C
A, B versions; –40
°C to +85°C
S, T versions; –55
°C to +125°C
41 LSB = 4.88 mV for 0 V to +1.25 V output range, 9.76 mV for 0 V to +2.5 V and
±1.25 V ranges and 19.5 mV for ±2.5 V range.
5See Terminology.
6Includes internal voltage reference error and is calculated after offset error has been adjusted out. Ideal unipolar full-scale voltage is (FS – 1 LSB); ideal bipolar positive full-scale voltage is (FS/2 – 1 LSB)
and ideal bipolar negative full-scale voltage is –FS/2.
7Sample tested at +25
°C to ensure compliance.
Specifications subject to change without notice.
–2–
REV. B
AD7569/AD7669–SPECIFICATIONS
(VDD = +5 V
5%; VSS
2 = RANGE = AGND
DAC = AGNDADC = DGND = 0 V; RL = 2 k
, CL = 100 pF to AGNDDAC
unless otherwise noted. All specifications TMIN to TMAX unless otherwise noted.)
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