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參數資料
| 型號： | TLV5619CPW |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 1 us SETTLING TIME, 12-BIT DAC, PDSO20 |
| 封裝： | GREEN, PLASTIC, TSSOP-20 |
| 文件頁數： | 19/23頁 |
| 文件大小： | 478K |
| 代理商： | TLV5619CPW |
www.ti.com
TIMING REQUIREMENTS
TLV5619
SLAS172F – DECEMBER 1997 – REVISED FEBRUARY 2004
REFERENCE INPUT (REFIN)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Vref
Reference input voltage
See (1)
0
VDD-1.5
V
Ri
Reference input resistance
10
M
Ci
Reference input capacitance
5
pF
Reference feed through
REFIN = 1 Vpp at 1 kHz + 1.024 V dc (see
(2))
60
dB
Reference input bandwidth
REFIN = 0.2 Vpp + 1.024 V dc at -3 dB
1.4
MHz
DIGITAL INPUTS (D0-D11, CS, WE, LDAC, PD)
IIH
High-level digital input current
VI = VDD
1
A
IIL
Low-level digital input current
VI = 0 V
1
A
Ci
Input capacitance
8
pF
(1)
Reference input voltages greater than VDD/2 will cause output saturation for large DAC codes.
(2)
Reference feedthrough is measured at the DAC output with an input code = 0x000 and a Vref(REFIN) input = 1.024 V dc + 1 Vpp at
1 kHz.
POWER SUPPLY
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
5-V Supply
1.6
3
IDD
Power supply current
No load, All inputs 0 V or VDD
mA
3-V Supply
1.44
2.7
Power down supply current
0.01
10
A
ANALOG OUTPUT DYNAMIC PERFORMANCE
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
5-V
Vref(REFIN) = 2.048 V,
8
12
V/s
Supply
CL = 100 pF,
Vref(REFIN) =1.024 V,
SR
Slew rate
RL = 10 k
VO from 10% to 90%
3-V
6
9
V/s
VO from 90% to 10%
Supply
Output settling time (full
ts
To
±0.5 LSB, R
L = 10 k, CL = 100 pF, See
(1)
1
3
s
scale)
Glitch energy
DIN = all 0s to all 1s
5
nV-s
fs = 480 kSPS, BW = 20 kHz, CL = 100 pF,
5-V
S/N
Signal to noise
65
78
fOUT = 1 kHz, RL = 10 k , TA = 25°C, See
(2)
Supply
5-V
58
67
Supply
fs = 480 kSPS, BW = 20 kHz, CL = 100 pF,
S/(N+D)
Signal to noise + distortion
fOUT = 1 kHz, RL = 10 k, TA = 25°C, See
(2)
3-V
58
69
dB
Supply
fs = 480 kSPS, BW = 20 kHz, CL = 100 pF,
Total harmonic distortion
68
60
fOUT = 1 kHz, RL = 10 k, TA = 25°C, See
(2)
Spurious free dynamic
fs = 480 kSPS, BW = 20 kHz, CL = 100 pF,
60
72
range
fOUT = 1 kHz, RL = 10 k, TA = 25°C, See
(2)
(1)
Settling time is the time for the output signal to remain within
±0.5 LSB of the final measured value for a digital input code change of 32
to 4063 or 4063 to 32. Limits are ensured by design and characterization, but are not production tested.
(2)
1 kHz sinewave generated by DAC, reference voltage = 1.024 V at 3 V and 2.048 V at 5 V.
DIGITAL INPUTS
MIN
NOM
MAX
UNIT
tsu(CS-WE)
Setup time, CS low before positive WE edge
13
ns
tsu(D)
Setup time, data ready before positive WE edge
9
ns
th(D)
Hold time, data held after positive WE edge
0
ns
tsu(WE-LD)
Setup time, positive WE edge before LDAC low
0
ns
twh(WE)
Pulse width, WE high
25
ns
tw(LD)
Pulse width, LDAC low
25
ns
5
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