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參數(shù)資料
| 型號： | TLV5618AFK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 2.7-V TO 5.5-V LOW-POWER DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTER WITH POWER DOWN |
| 中文描述： | 2.7 V至5.5 V的低功耗雙通道12位數(shù)字至模擬轉(zhuǎn)換器與電源向下 |
| 文件頁數(shù)： | 4/18頁 |
| 文件大?。?/td> | 267K |
| 代理商： | TLV5618AFK |
TLV5618A
2.7-V TO 5.5-V LOW-POWER DUAL 12-BIT
DIGITAL-TO-ANALOG CONVERTER WITH POWER DOWN
SLAS230D – JULY 1999 – REVISED MARCH 2000
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating conditions (unless otherwise noted)
power supply
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IDD
Power supply current
No load,
All inputs = AGND or VDD,
DAC latch = 0x800
Fast
1.8
2.3
mA
Slow
0.8
1
Power down supply current
1
μ
A
PSRR
Power supply rejection ratio
Zero scale, See Note 2
–65
dB
Full scale, See Note 3
–65
NOTES:
2. Power supply rejection ratio at zero scale is measured by varying VDD and is given by:
PSRR = 20 log [(EZS(VDDmax) – EZS(VDDmin)/VDDmax]
3. Power supply rejection ratio at full scale is measured by varying VDD and is given by:
PSRR = 20 log [(EG(VDDmax) – EG(VDDmin)/VDDmax]
static DAC specifications
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Resolution
12
bits
INL
Integral nonlinearity
See Note 4
±
2
±
4
±
1
±
12
LSB
DNL
Differential nonlinearity
See Note 5
±
0.5
LSB
EZS
EZS TC
Zero-scale error (offset error at zero scale)
See Note 6
mV
Zero-scale-error temperature coefficient
See Note 7
3
ppm/
°
C
% full
scale V
ppm/
°
C
EG
Gain error
See Note 8
±
0.6
EG TC
NOTES:
Gain-error temperature coefficient
See Note 9
1
4. The relative accuracy of integral nonlinearity (INL), sometimes referred to as linearity error, is the maximum deviation of the output
from the line between zero and full scale, excluding the effects of zero-code and full-scale errors.
5. The differential nonlinearity (DNL), sometimes referred to as differential error, is the difference between the measured and ideal
1-LSB amplitude change of any two adjacent codes.
6. Zero-scale error is the deviation from zero voltage output when the digital input code is zero.
7. Zero-scale-error temperature coefficient is given by: EZS TC = [EZS (Tmax) – EZS (Tmin)]/2Vref
×
106/(Tmax – Tmin).
8. Gain error is the deviation from the ideal output (2Vref – 1 LSB) with an output load of 10 k
.
9. Gain temperature coefficient is given by: EG TC = [EG (Tmax) – Eg (Tmin)]/2Vref
×
106/(Tmax – Tmin).
output specifications
PARAMETER
TEST CONDITIONS
RL = 10 k
VO = 4.096 V, 2.048 V RL = 2 k
MIN
TYP
MAX
UNIT
VO
Output voltage range
VDD–0.4
±
0.29
V
Output load regulation accuracy
% FS
reference input
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VI
RI
CI
Input voltage range
0
VDD–1.5
V
Input resistance
10
M
pF
MHz
Input capacitance
5
Reference input bandwidth
REF = 0 2 V
REF = 0.2 Vpp + 1.024 V dc
+ 1 024 V dc
Fast
1.3
Slow
525
kHz
Reference feedthrough
REF = 1 Vpp at 1 kHz + 1.024 V dc (see Note 10)
–80
dB
NOTE 10: Reference feedthrough is measured at the DAC output with an input code = 0x000.
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