(VDD = +5 V 5%, V
參數(shù)資料
型號: AD7840JPZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 9/16頁
文件大小: 0K
描述: IC DAC 14BIT LC2MOS 28PLCC
標準包裝: 750
設置時間: 2.5µs
位數(shù): 14
數(shù)據(jù)接口: 串行,并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 雙 ±
功率耗散(最大): 100mW
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 28-LCC(J 形引線)
供應商設備封裝: 28-PLCC(11.51x11.51)
包裝: 帶卷 (TR)
輸出數(shù)目和類型: 1 電壓,雙極
采樣率(每秒): *
REV. B
–2–
AD7840–SPECIFICATIONS
(VDD = +5 V
5%, VSS = –5 V
5%, AGND = DGND = O V, REF IN = +3 V, RL = 2 k ,
CL = 100 pF. All specifications TMIN to TMAX unless othewise noted.)
Parameter
J, A
1
K, B
1
S
1
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
2
Signal to Noise Ratio
3 (SNR)
76
78
76
dB min
VOUT = 1 kHz Sine Wave, fSAMPLE = 100 kHz
Typically 82 dB at +25
°C for 0 < V
OUT < 20 kHz
4
Total Harmonic Distortion (THD) –78
–80
–78
dB max
VOUT = 1 kHz Sine Wave, fSAMPLE = 100 kHz
Typically –84 dB at +25
°C for 0 < V
OUT < 20 kHz
4
Peak Harmonic or Spurious Noise
–78
–80
–78
dB max
VOUT = 1 kHz Sine Wave, fSAMPLE = 100 kHz
Typically –84 dB at +25
°C for 0 < V
OUT < 20 kHz
4
DC ACCURACY
Resolution
14
Bits
Integral Nonlinearity
±2
±1
±2
LSB max
Differential Nonlinearity
±0.9
LSB max
Guaranteed Monotonic
Bipolar Zero Error
±10
LSB max
Positive Full Scale Error
5
±10
LSB max
Negative Full Scale Error
5
±10
LSB max
REFERENCE OUTPUT
6
REF OUT @ +25
°C
2.99
V min
3.01
V max
REF OUT TC
±60
ppm/
°C max
Reference Load Change
(
REF OUT vs. I)
–1
mV max
Reference Load Current Change (0–500
A)
REFERENCE INPUT
Reference Input Range
2.85
V min
3 V
± 5%
3.15
V max
Input Current
50
A max
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
VDD = 5 V ± 5%
Input Low Voltage, VINL
0.8
V max
VDD = 5 V
± 5%
Input Current, IIN
±10
A max
VIN = 0 V to VDD
Input Current (CS Input Only)
±10
A max
VIN =VSS to VDD
Input Capacitance, CIN
7
10
pF max
ANALOG OUTPUT
Output Voltage Range
±3
V nom
DC Output Impedance
0.1
typ
Short-Circuit Current
20
mA typ
AC CHARACTERISTICS7
Voltage Output Settling Time
Settling Time to within
±1/2 LSB of Final Value
Positive Full-Scale Change
4
s max
Typically 2
s
Negative Full-Scale Change
4
s max
Typically 2.5
s
Digital-to-Analog Glitch Impulse
10
nV secs typ
Digital Feedthrough
2
nV secs typ
POWER REQUIREMENTS
VDD
+5
V nom
±5% for Specified Performance
VSS
–5
V nom
±5% for Specified Performance
IDD
14
15
mA max
Output Unloaded, SCLK = +5 V. Typically 10 mA
ISS
6
7
mA max
Output Unloaded, SCLK = +5 V. Typically 4 mA
Power Dissipation
100
110
mW max
Typically 70 mW
NOTES
1Temperature ranges are as follows: J, K Versions, 0
°C to +70°C; A, B Versions, –25°C to +85°C; S Version, –55°C to +125°C.
2V
OUT (pk-pk) = ± 3 V
3SNR calculation includes distortion and noise components.
4Using external sample-and-hold (see Testing the AD7840).
5Measured with respect to REF IN and includes bipolar offset error.
6For capacitive loads greater than 50 pF, a series resistor is required (see Internal Reference section).
7Sample tested @ +25
°C to ensure compliance.
Specifications subject to change without notice.
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