參數(shù)資料
型號: TLV5628I
廠商: Texas Instruments, Inc.
英文描述: OCTAL 8-BIT DIGITAL-TO-ANALOG CONVERTERS
中文描述: 八進(jìn)制8位數(shù)字,模擬轉(zhuǎn)換器
文件頁數(shù): 8/14頁
文件大?。?/td> 214K
代理商: TLV5628I
TLV5628C, TLV5628I
OCTAL 8-BIT DIGITAL-TO-ANALOG CONVERTERS
SLAS108A – JANUARY 1995 – REVISED NOVEMBER 1995
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range,
V
DD
= 3 V to 3.6 V, V
ref
= 2 V,
×
1 gain output range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
±
10
±
10
UNIT
μ
A
μ
A
μ
A
mA
IIH
IIL
IO(sink)
IO(source)
High-level digital input current
VI = VDD
VI = 0 V
Low-level digital input current
Output sink current
Each DAC output
20
Output source current
1
Ci
Input capacitance
15
pF
Reference input capacitance
15
IDD
Iref
EL
ED
EZS
Supply current
VDD = 3.3 V
VDD = 3.3 V,
Vref = 1.25 V,
Vref = 1.25 V,
Vref = 1.25 V,
Vref = 1.25 V,
Vref = 1.25 V,
Vref = 1.25 V,
See Notes 7 and 8
4
mA
μ
A
LSB
Reference input current
Vref = 1.5 V
×
2 gain (see Note 1)
×
2 gain (see Note 2)
×
2 gain (see Note 3)
×
2 gain (see Note 4)
×
2 gain (see Note 5)
×
2 gain (see Note 6)
±
10
±
1
±
0.9
30
Linearity error (end point corrected)
Differential linearity error
LSB
Zero-scale error
0
mV
μ
V/
°
C
mV
μ
V/
°
C
mV/V
Zero-scale error temperature coefficient
10
EFS
Full-scale error
±
60
Full-scale error temperature coefficient
±
25
0.5
PSRR
Power supply sensitivity
NOTES:
1. Integral nonlinearity (INL) is the maximum deviation of the output from the line between zero-scale and full scale (excluding the
effects of zero code and full-scale errors).
2. Differential nonlinearity (DNL) is the difference between the measured and ideal 1 LSB amplitude change of any two adjacent codes.
Monotonic means the output voltage changes in the same direction (or remains constant) as a change in the digital input code.
3. Zero-scale error is the deviation from zero voltage output when the digital input code is zero.
4. Zero-scale error temperature coefficient is given by: ZSETC = [ZSE(Tmax) – ZSE(Tmin)]/Vref
×
106/(Tmax – Tmin).
5. Full-scale error is the deviation from the ideal full-scale output (Vref – 1 LSB) with an output load of 10 k
.
6. Full-scale temperature coefficient is given by: FSETC = [FSE(Tmax) – FSE (Tmin)]/Vref
×
106/(Tmax – Tmin).
7. Zero-scale error rejection ratio (ZSE-RR) is measured by varying the VDD voltage from 4.5 V to 5.5 V dc and measuring the effect
of this signal on the zero-code output voltage.
8. Full-scale error rejection ratio (FSE-RR) is measured by varing the VDD voltage from 3 V to 3.6 V dc and measuring the effect of
this signal on the full-scale output voltage.
operating characteristics over recommended operating free-air temperature range,
V
DD
= 3 V to 3.6 V, V
ref
= 2 V,
×
1 gain output range (unless otherwise noted)
TEST CONDITIONS
RL = 10 k
CL = 100 pF,
MIN
TYP
MAX
UNIT
V/
μ
s
μ
s
kHz
Output slew rate
CL = 100 pF,
To 0.5 LSB,
1
Output settling time
RL = 10 k
, See Note 9
10
Large-signal bandwidth
Measured at –3 dB point
100
Digital crosstalk
CLK = 1-MHz square wave measured at DACA-DACH
–50
dB
Reference feedthrough
See Note 10
–60
dB
Channel-to-channel isolation
See Note 11
–60
dB
Reference input bandwidth
9. 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 00 hex to FF hex or FF hex to 00 hex. For TLC5628C VDD = 5 V, Vref = 2 V and range =
×
2. For TLC5628I VDD = 3 V,
Vref = 1.25 V and range
×
2.
10. Reference feedthrough is measured at any DAC output with an input code = 00 hex with a Vref input = 1 V dc + 1 VPP at 10 kHz.
11. Channel-to-channel isolation is measured by setting the input code of one DAC to FF hex and the code of all other DACs to 00 hex
with Vref input = 1 V dc + 1 VPP at 10 kHz.
12. Reference bandwidth is a –3 dB bandwidth with an input at Vref = 1.25 V dc + 2 VPP and with a full-scale digital input code.
See Note 12
100
kHz
NOTES:
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