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DAC2932PFBTG4 Fiches technique(PDF) 4 Page - Texas Instruments

No de pièce DAC2932PFBTG4
Description  Dual, 12-Bit, 40MSPS Digital-to-analog Converter
Download  29 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

DAC2932PFBTG4 Fiches technique(HTML) 4 Page - Texas Instruments

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DAC2932
SBAS279D − AUGUST 2003 − REVISED JULY 2005
www.ti.com
4
ELECTRICAL CHARACTERISTICS: I-DAC (continued)
At TA = TMIN to TMAX (typical values are at TA = 25°C), +VA = +3V, +VD = +3V, Update Rate = 40MSPS, IOUTFS = 2mA, RL = 250Ω, CL ≤ 10pF,
GSET = H, and internal reference, unless otherwise noted.
DAC2932
PARAMETER
UNITS
MAX
TYP
MIN
TEST CONDITIONS
Reference
Voltage, VREF
+1.14
+1.22
+1.26
V
Tolerance
±30
mV
Voltage drift
−40
ppm/°C
Output current
10
μA
Input resistance
1
Input compliance range
External VREF
+1.22
V
Small-signal bandwidth
0.1
MHz
Digital Inputs(6)
Logic coding
Straight binary
Logic high voltage, VIH
+2
+3
V
Logic low voltage, VIL
0
+0.8
V
Logic high current
±1
μA
Logic low current
±1
μA
Input capacitance
5
pF
Power Supply
Analog supply voltage, +VA, +VAV
2.7
3
3.3
V
Digital supply voltage, +VD, +VDV
2.7
3
3.3
V
Analog supply current, IVA
fCLOCK = 25MSPS, digital inputs at 0
4.7
mA
IVA
fCLOCK = 40MSPS, fOUT = 2.2MHz
5.4
mA
IVA
Standby mode
0.4
mA
Digital supply current, IVD
fCLOCK = 25MSPS, digital inputs at 0
2
mA
lVD
fCLOCK = 40MSPS, fOUT = 2.2MHz
4.3
mA
IVD
Standby mode, clock off
0.02
mA
IVD
Standby mode, CS = 0, fCLOCK = 25MSPS
1.3
mA
Power dissipation, PD(8)
fCLOCK = 25MSPS, digital inputs at 0
20
25
mW
PD
fCLOCK = 40MSPS, fOUT = 2.2MHz
29
mW
PD
Standby mode, fCLOCK = 25MSPS
5.5
7
mW
PD
Power-down mode, clock off, digital inputs at 0
25
μW
Thermal resistance
TQFP-48
θJA
97.5
°C/W
Q
θJC
20
°C/W
(1) At output IOUT1, IOUT2, while driving a 250Ω load, transition from 000h to FFFh.
(2) Measured at fCLOCK = 25MSPS and fOUT = 1.0MHz.
(3) Differential, transformer (n = 4:1) coupled output, RL = 400Ω.
(4) Differential outputs with a 250Ω load.
(5) Nominal full−scale output current is I
OUTFS + 32
IREF + 32
VREF
R
SET
; with VREF + 1.22V (typ) and RSET + 19.6kW (1%)
(6) Ensured by design and characterization; not production tested.
(7) Gain error to remain ≤10% FSR over the full compliance range.
(8) Combined power dissipation of I-DAC and V-DAC.


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