DEMO MANUAL DC934A
experiments
should be less than 2.25mV, corresponding to an output
impedance of 0.15Ω. Output impedance is typically less
than 0.030Ω. (measure DAC voltage at the output pin if
using a voltmeter.)
ZERO SCALE ERROR
Set one of the DACs to code 0. The measured output should
be less than 9mV and will typically be less than 1mV.
OFFSET ERROR
Set one of the DACs to code 256. The output voltage should
be within 9mV of the correct value, or V
REF
• 256/65535.
gAIN ERROR
Set one of the DACs to code 65,535. The output voltage
should be within 0.7% of V
REF
, and will typically be within
0.2%.
DC CROSSTALk
Set one of the DACs to mid-scale. Connect a 250Ω resistor
from the output to V
CC
or power ground (to sink or source
10mA, respectively, when the 5V reference is being used.)
The other output should not change by more than 3.5μV
per milliamp of load current.
parts List
ITEM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
QTy REFERENCE
6
4
2
9
1
6
7
1
3
3
3
3
1
1
1
1
1
1
1
C1, C2, C4, C5, C6, C11
C3, C7, C8, C12
C9, C10
E1-E9
JP1
JP2-JP7
SHUNTS FOR JP1-JP7 PIN 1 AND 2
J1
R1, R2, R3
R4, R6, R9
R5, R7, R12
R8, R10, R11
U1
U2
U3
U4
U5
U6
U7
PART DESCRIPTION
CAP., X5R, 1µF 10V, 0402
CAP., X7R, 0.1µF 16V, 0402
CAP., NPO, 100pF 50V, 0402
TESTPOINT, TURRET, 0.064"
JMP, 2X3, 0.079CC
JMP, 3 PIN 1 ROW 0.079CC
SHUNT, 0.079" CENTER
HEADER, 2X7 PIN, 0.079CC
RES., CHIP 4.99k 1/16W 1%, 0402
RES., CHIP 100Ω 1/16W 5%, 0402
RES., CHIP 7.5k 1/16W 5%, 0402
RES., CHIP 10k 1/16W 5%, 0402
I.C., LTC2607CDE, DFN12DE
I.C., LTC2422CMS, MSOP10
I.C., LT1790ACS6-5, SOT23-6
I.C., LT1790ACS6-4.096, SOT23-6
I.C., LT1790ACS6-2.5, SOT23-6
I.C., 24LC025, TSSOP8
I.C., NC7WB66K8X, US8
MANUFACTURER/PART NUMBER
TDK, C1005X5R1A105MT
TDK, C1005X7R1C104MT
AVX, 04025A101JAT
MILL-MAX, 2308-2
SAMTEC, TMM-103-02-L-D
SAMTEC, TMM-103-02-L-S
SAMTEC, 2SN-BK-G
MOLEX, 87331-1420
AAC, CR05-4991FM
VISHAY, CRCW0402101J
AAC, CR05-752JM
AAC, CR05-103JM
LINEAR TECH., LTC2607CDE
LINEAR TECH., LTC2422CMS
LINEAR TECH., LT1790ACS6-5 *
LINEAR TECH., LT1790ACS6-4.096 **
LINEAR TECH., LT1790ACS6-2.5
MICROCHIP, 24LC025-I/ST
FAIRCHILD, NC7WB66K8X
Required Circuit Components
dc934af
4
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