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參數(shù)資料
| 型號： | DAC8820IBDBG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 0.5 us SETTLING TIME, 16-BIT DAC, PDSO28 |
| 封裝： | GREEN, PLASTIC, SSOP-28 |
| 文件頁數(shù)： | 16/22頁 |
| 文件大?。?/td> | 1216K |
| 代理商： | DAC8820IBDBG4 |
www.ti.com
ELECTRICAL CHARACTERISTICS
SBAS358D – AUGUST 2005 – REVISED FEBRUARY 2008
All specifications at –40
°C to +85C, V
DD = +2.7 V to +5.5 V, IOUT = virtual GND, GND = 0 V, VREF = 10 V, and TA = full
operating temperature, unless otherwise noted.
DAC8820
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
STATIC PERFORMANCE
Resolution
16
Bits
Relative accuracy
DAC8820IB
±2
LSB
Relative accuracy
DAC8820IC
±1
LSB
Differential nonlinearity
±0.5
±1
LSB
Output leakage current
Data = 0000h, TA = +25°C
5
nA
Output leakage current
Data = 0000h, TA = TMAX
10
nA
Full-scale gain error
Unipolar, data = FFFFh
2
±16
LSB
Bipolar, data = FFFFh
2
±16
LSB
Full-scale temperature coefficient
1
2
ppm/
°C
Bipolar zero scale error
TA = +25°C
±5
LSB
TA = TMAX
±8
LSB
PSRR
Power-supply rejection ratio; VDD = 5 V ±10%
±0.2
±2.0
LSB/V
OUTPUT CHARACTERISTICS(1)
Output current
1.66
mA
Output capacitance
Code dependent
50
pF
REFERENCE INPUT
VREF Range
–15
15
V
RREF
Input resistance (unipolar)
4.5
6
7.5
k
Input capacitance
5
pF
R1/R2
R1/R2 resistance (bipolar)
9
12
15
k
ROFS, RFB
Feedback and offset resistance
9
12
15
k
LOGIC INPUTS AND OUTPUT(1)
Input low voltage
VIL VDD = +2.7 V
0.6
V
VIL VDD = +5 V
0.8
V
Input high voltage
VIH VDD = +2.7 V
2.1
V
VIH VDD = +5 V
2.4
V
Input leakage current
IIL
0.001
1
A
Input capacitance
CIL
8
pF
INTERFACE TIMING, VDD = +5.0V
tDS Data to WR setup time
20
ns
tDH Data to WR hold time
0
ns
tWR WR pulse width
20
ns
tLDAC LDAC pulse width
20
ns
Data setup time
tRST RST pulse width
20
ns
Data hold time
tLWD WR to LDAC delay time
0
ns
INTERFACE TIMING, VDD = +2.7V
tDS Data to WR setup time
35
ns
tDH Data to WR hold time
0
ns
tWR WR pulse width
35
ns
tLDAC LDAC pulse width
35
ns
Data setup time
tRST RST pulse width
35
ns
Data hold time
tLWD WR to LDAC delay time
0
ns
(1)
Specified by design and characterization; not production tested.
Copyright 2005–2008, Texas Instruments Incorporated
3
Product Folder Link(s): DAC8820
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