參數(shù)資料
型號(hào)： DAC8820IC
廠商： Texas Instruments, Inc.
英文描述： 16-Bit, Parallel Input Multiplying Digital-to-Analog Converter
中文描述： 16位并行輸入乘法數(shù)字到模擬轉(zhuǎn)換器
文件頁(yè)數(shù)： 3/22頁(yè)
文件大?。?/td> 939K
代理商： DAC8820IC
www.ti.com
ELECTRICAL CHARACTERISTICS
All specifications at –40
°
C to +85°C, V
DD
= +2.7 V to +5.5 V, I
OUT
= virtual GND, GND = 0 V, V
REF
= 10 V, and T
A
= full
operating temperature, unless otherwise noted.
DAC8820
SBAS358C–AUGUST 2005–REVISED JUNE 2006
DAC8820
TYP
PARAMETER
CONDITIONS
MIN
MAX
UNITS
STATIC PERFORMANCE
Resolution
Relative accuracy
Relative accuracy
Differential nonlinearity
Output leakage current
Output leakage current
Full-scale gain error
16
Bits
LSB
LSB
LSB
nA
nA
LSB
LSB
ppm/
°
C
LSB
LSB
LSB/V
DAC8820IB
DAC8820IC
±
2
±
1
±
1
5
10
±
16
±
16
2
±
5
±
8
±
2.0
±
0.5
Data = 0000h, T
A
= +25
°
C
Data = 0000h, T
A
= T
MAX
Unipolar, data = FFFFh
Bipolar, data = FFFFh
2
2
1
Full-scale temperature coefficient
Bipolar zero scale error
T
A
= +25
°
C
T
A
= T
MAX
Power-supply rejection ratio; V
DD
= 5V
±
10%
PSRR
OUTPUT CHARACTERISTICS
(1)
Output current
Output capacitance
REFERENCE INPUT
V
REF
Range
R
REF
Input capacitance
R1/R2
R
OFS
, R
FB
LOGIC INPUTS AND OUTPUT
(1)
Input low voltage
±
0.2
1.66
50
mA
pF
Code dependent
–15
4.5
15
7.5
V
k
pF
k
k
Input resistance (unipolar)
6
5
12
12
R1/R2 resistance (bipolar)
Feedback and offset resistance
9
9
15
15
V
IL
V
DD
= +2.7 V
V
IL
V
DD
= +5 V
V
IH
V
DD
= +2.7 V
V
IH
V
DD
= +5 V
I
IL
C
IL
0.6
0.8
V
V
V
V
μ
A
pF
Input high voltage
2.1
2.4
Input leakage current
Input capacitance
INTERFACE TIMING, V
DD
= +5.0V
(1)
(See
Figure 40
and
Table 1
)
t
DS
Data to WR setup time
t
DH
Data to WR hold time
t
WR
WR pulse width
t
LDAC
LDAC pulse width
Data setup time
t
RST
RST pulse width
Data hold time
t
LWD
WR to LDAC delay time
INTERFACE TIMING, V
DD
= +2.7V
(1)
(See
Figure 40
and
Table 1
)
t
DS
Data to WR setup time
t
DH
Data to WR hold time
t
WR
WR pulse width
t
LDAC
LDAC pulse width
Data setup time
t
RST
RST pulse width
Data hold time
t
LWD
WR to LDAC delay time
0.001
1
8
20
0
20
20
20
0
ns
ns
ns
ns
ns
ns
35
0
35
35
35
0
ns
ns
ns
ns
ns
ns
(1)
Specified by design and characterization; not production tested.
3
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