参数资料
型号: DAC7554IDGSR
厂商: TEXAS INSTRUMENTS INC
元件分类: DAC
英文描述: SERIAL INPUT LOADING, 5 us SETTLING TIME, 12-BIT DAC, PDSO10
封装: GREEN, PLASTIC, MSOP-10
文件页数: 17/23页
文件大小: 1224K
代理商: DAC7554IDGSR
www.ti.com
ELECTRICAL CHARACTERISTICS
DAC7554
SLAS399A – OCTOBER 2004 – REVISED NOVEMBER 2004
V
DD = 2.7 V to 5.5 V, REFIN = VDD, RL = 2 k to GND; CL = 200 pF to GND; all specifications –40°C to 105°C, unless
otherwise specified
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
STATIC PERFORMANCE(1)
Resolution
12
Bits
Relative accuracy
±0.35
±1
LSB
Differential nonlinearity
Specified monotonic by design
±0.08
± 0.5
LSB
Offset error
±12
mV
Zero-scale error
All zeroes loaded to DAC register
±12
mV
Gain error
±0.15
%FSR
Full-scale error
±0.5
%FSR
Zero-scale error drift
7
V/
°C
Gain temperature coefficient
3
ppm of FSR/
°C
PSRR
VDD = 5 V
0.75
mV/V
OUTPUT CHARACTERISTICS(2)
Output voltage range
0
REFIN
V
Output voltage settling time
RL = 2 k; 0 pF < CL < 200 pF
5
s
Slew rate
1
V/s
Capacitive load stability
RL = ∞
470
pF
RL = 2 k
1000
Digital-to-analog glitch impulse
1 LSB change around major carry
0.1
nV-s
Channel-to-channel crosstalk
1-kHz full-scale sine wave, outputs unloaded
–100
dB
Digital feedthrough
0.1
nV-s
Output noise density (10-kHz offset fre-
70
nV/rtHz
quency)
Total harmonic distortion
FOUT = 1 kHz, FS = 1 MSPS, BW = 20 kHz
–85
dB
DC output impedance
1
Short-circuit current
VDD = 5 V
50
mA
VDD = 3 V
20
Power-up time
Coming out of power-down mode, VDD = 5 V
15
s
Coming out of power-down mode, VDD = 3 V
15
LOGIC INPUTS(2)
Input current
±1
A
VIN_L, Input low voltage
VDD = 5 V
0.3 VDD
V
VIN_H, Input high voltage
VDD = 3 V
0.7 VDD
V
Pin capacitance
3
pF
POWER REQUIREMENTS
VDD
2.7
5.5
V
IDD(normal operation)
DAC active and excluding load current
VDD = 3.6 V to 5.5 V
VIH = VDD and VIL = GND
700
880
A
VDD = 2.7 V to 3.6 V
550
830
IDD (all power-down modes)
VDD = 3.6 V to 5.5 V
VIH = VDD and VIL = GND
0.2
2
A
VDD = 2.7 V to 3.6 V
0.05
2
Reference input impedance
25
k
POWER EFFICIENCY
IOUT/IDD
ILOAD = 2 mA, VDD = 5 V
93%
(1)
Linearity tested using a reduced code range of 48 to 4048; output unloaded.
(2)
Specified by design and characterization, not production tested.
3
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