DAC8408
@ V = +5 V; V = ؎10 V; V A, B, C, D = 0 V; T = –55؇C to +125؇C apply for
ELECTRICAL CHARACTERISTICS
DD
REF
OUT
A
DAC8408AT/BT, T = –40؇C to +85؇C apply for DAC8408ET/FT/FP/FPC/FS; T = 0؇C to +70؇C apply for DAC8408GP, unless otherwise noted.
A
A
Specifications apply for DAC A, B, C, & D. Continued
D AC8408
Typ
P aram eter
Sym bol
Conditions
Min
Max
Units
POWER SUPPLY
Voltage Range
VDD
IDD
IDD
4.5
5.5
50
1.0
1.5
V
Supply Current8
Supply Current9
µA
mA
mA
TA = +25°C
TA = Full T emperature Range
7From Digital Input to 90% of final analog output current.
NOT ES
1T his is an end-point linearity specification.
8All Digital Inputs “0” or VDD
.
2Guaranteed to be monotonic over the full operating temperature range.
3ppm/°C of FSR (FSR = Full Scale Range = VREF-1 LSB.)
4Input Resistance T emperature Coefficient = +300ppm/°C.
5Logic Inputs are MOS gates. T ypical input current at +25°C Is less than 10 nA.
6Guaranteed by design.
9All Digital Inputs VIH or VIL
10See T iming Diagram.
.
11Digital Inputs = 0 V to VDD or VDD to 0 V.
12Extrapolated: tS (1/2 LSB) = tPD + 6.2τ where τ = the measured first time con-
stant of the final RC decay.
13All Digital Inputs = 0 V; VREF = +10 V.
Specifications subject to change without notice.
P IN CO NNECTIO NS
DAC8408
TOP VIEW
(Not to Scale)
ABSO LUTE MAXIMUM RATINGS
(TA = +25°C, unless otherwise noted.)
P ackage Type
JA*
JC
Units
28-Pin Hermetic DIP (T )
28-Pin Plastic DIP (P)
28-Pin SOL (S)
55
53
68
66
10
27
23
29
°C/W
°C/W
°C/W
°C/W
VDD to IOUT 2A, IOUT 2B, IOUT 2C, IOUT
. . . . . . . . . . 0 V, +7 V
2D
VDD to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V, +7 V
IOUT 1A, IOUT
,
1B
28-Contact PLCC (PC)
I
OUT 1C, IOUT 1D to DGND . . . . . . . . . –0.3 V to VDD +0.3 V
R
FBA, RFBB, RFBC, RFBD to IOUT . . . . . . . . . . . . . . . . . ±25 V
*θJA is specified for worst case mounting conditions, i.e., θJA is specified for
device in socket for cerdip and P-DIP packages; θJA is specified for device
soldered to printed circuit board for SOL and PLCC packages.
I
OUT 2A, IOUT 2B
,
I
OUT 2C, IOUT 2D to DGND . . . . . . . . . –0.3 V to VDD + 0.3 V
DB0 through DB7 to DGND . . . . . . . . –0.3 V to VDD + 0.3 V
Control Logic
Input Voltage to DGND . . . . . . . . . . –0.3 V + VDD + 0.3 V
CAUTIO N
1. Do not apply voltages higher than VDD +0.3 V or less than
–0.3 V potential on any terminal except VREF and RFB
.
VREFA, VREFB, VREFC, VREFD to
I
OUT 2A, IOUT 2B, IOUT 2C, IOUT 2D . . . . . . . . . . . . . . . . ±25 V
2. T he digital control inputs are diode-protected; however,
permanent damage may occur on unconnected inputs from
high energy electrostatic fields. Keep in conductive foam at
all times until ready to use.
Operating T emperature Range
Commercial Grade (GP) . . . . . . . . . . . . . . . . 0°C to +70°C
Industrial Grade (ET , FT , FP, FPC, FS) . –40°C to +85°C
Military Grade (AT , BT ) . . . . . . . . . . . . . . –55°C to +125°C
Junction T emperature . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Storage T emperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead T emperature (Soldering, 10 sec) . . . . . . . . . . . . . +300°C
3. Use proper antistatic handling procedures.
4. Absolute Maximum Ratings apply to both packaged devices
and DICE. Stresses above those listed under Absolute Maxi-
mum Ratings may cause permanent damage to the device.
REV. A
–3–