參數(shù)資料
型號(hào): TLC320AD56C
廠商: Texas Instruments, Inc.
英文描述: Sigma-Delta Analog Interface Circuit
中文描述: sigma - delta模擬接口電路
文件頁數(shù): 32/43頁
文件大?。?/td> 240K
代理商: TLC320AD56C
4–6
4.3.8
DAC Channel, DV
DD
= 5 V or 3 V
PARAMETER
Dynamic range
TEST CONDITIONS
MIN
TYP
85
MAX
UNIT
Interchannel isolation
108
±
0.5
dB
EG
Gain error, 0 dB
VO = 0 dB at 1020 Hz
Idle channel
broad-band noise
See Note 8
70
150
μ
V rms
Idle channel
narrow-band noise
0 – 4 kHz,
See Note 8
2
20
μ
V rms
Channel delay
18/fs
s
VOO
Output offset voltage
at OUT (differential)
DIN = zero code
2
mV
VO
Analog output
voltage,
OUTP–OUTM
With internal
reference and
full-scale digital
input,
See Note 9
Differential
VPP
NOTES:
8. The conversion rate is 8 kHz; the out-of-band measurement is made from 4400 Hz to 3 MHz.
9. The digital input to the DAC channel at DIN is in 2’s complement format. The TLC320AD56C is a current
DAC and requires a load resistor for current-to-voltage conversion. This output voltage is across the load
resistor (see Figures 5–1 and 5–2).
4.3.9
Power Supplies, No Load (Unless Otherwise Noted)
PARAMETER
TEST CONDITIONS
Operating
MIN
TYP
18
MAX
UNIT
mA
IDD (analog)
Power supply current ADC
Power supply current, ADC
25
Power down
0.5
mA
IDD (di it l1)
IDD (digital1)
Power supply current digital
Power supply current, digital
Operating
2
5
mA
μ
A
mA
μ
A
Power down
3
IDD (di it l2)
IDD (digital2)
Power supply current, digital,
DVDD = 3.3 V
Operating
1
Power down
Operating
3
PD
Power dissipation
Power dissi ation
100
150
mW
Power down
2.5
5
R(IGAIN)
9.6
RLOAD
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