AD5556CRU-REEL7 Analog Devices Inc, AD5556CRU-REEL7 Datasheet - Page 6

• Manufacturer Part Number: AD5556CRU-REEL7
• Description: IC,D/A CONVERTER,SINGLE,14-BIT,TSSOP,28PIN
• Manufacturer: Analog Devices Inc

Specifications of AD5556CRU-REEL7

• Rohs Status: RoHS non-compliant
• Design Resources: Precision, Unipolar, Inverting Conversion Using AD5546/56 DAC (CN0022) Precision, Bipolar Configuration for the AD5546/56 DAC (CN0024) Precision, Unipolar, Noninverting Configuration for the AD5546/56 DAC (CN0023) Precision, AC Reference Signal Attenuator Using AD5546/56 Multiplying DAC (CN0025)
• Settling Time: 500ns
• Number Of Bits: 14
• Data Interface: Parallel
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 55µW
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP

AD5546/AD5556
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 3. AD5546 Pin Function Descriptions
Pin No.
1 to 8
9
10
11
12
13
14
15
16
17
18
19
20 to 21
22 to 27
28
Table 4. AD5556 Pin Function Descriptions
Pin No.
1 to 6
7 to 8
9
10
11
12
Mnemonic
D7 to D0
R
R
R1
R
REF
I
LDAC
WR
MSB
RS
GND
D15 to D14
D13 to D8
V
Mnemonic
D5 to D0
NC
R
R
R1
R
OUT
OFS
FB
COM
OFS
FB
COM
DD
Figure 4. AD5546 Pin Configuration
R
R
REF
I
COM 12
R
OUT 14
OFS
D7
D6
D5
D4
D3
D2
D1
D0
R1
FB 10
11
13
1
2
3
4
5
6
7
8
9
Description
Digital Input Data Bits[D7: D0]. The signal level must be ≤ V
Bipolar Offset Resistor. Accepts up to ±18 V. In two-quadrant mode, ties to R
and the external reference.
Internal Matching Feedback Resistor. Connects to the output of an external op amp for I-V conversion.
Four-Quandrant Resistor R1. In two-quadrant mode, shorts to the REF pin. In four-quadrant mode, ties to R
Center Tap Point of Two Four-Quadrant Resistors, R1 and R2. In four-quadrant mode, ties to the inverting node of
the reference amplifier. In two-quadrant mode, shorts to the REF pin.
DAC Reference Input in Two-Quadrant Mode and R2 Terminal in Four-Quadrant Mode. In two-quadrant mode, this
pin is the reference input with constant input resistance vs. code. In four-quadrant mode, this pin is driven by the
external reference amplifier.
DAC Current Output. Connects to the inverting node of an external op amp for I-V conversion.
Digital Input Load DAC Control. Signal level must be ≤ V
Write Control Digital Input in Active Low. Transfers shift-register data to the DAC register on the rising edge. The
signal level must be ≤ V
Power-On Reset State. MSB = 0 resets at zero scale; MSB = 1 resets at midscale. The signal level must be
≤ V
Reset in Active Low. Resets to zero scale if MSB = 0, and resets to midscale if MSB = 1. The signal level must be
≤ V
Analog and Digital Grounds.
Digital Input Data Bits[D15:D14]. The signal level must be ≤ V
Digital Input Data Bits[D13:D8]. The signal level must be ≤ V
Positive Power Supply Input. Specified range of operation: 2.7 V to 5.5 V.
Description
Digital Input Data Bits[D5:D0]. The signal level must be ≤ V
No Connection. The user should not connect anything other than dummy pads on these terminals.
Bipolar Offset Resistor. Accepts up to ±18 V. In two-quadrant mode, ties to RFB. In four-quadrant mode, ties to R1
and the external reference.
Internal Matching Feedback Resistor. Connects to the output of an external op amp for I-V conversion.
Four-Quandrant Resistor R1. In two-quadrant mode, shorts to the REF pin. In four-quadrant mode, ties to R
Center Tap Point of Two Four-Quadrant Resistors, R1 and R2. In four-quadrant mode, ties to the inverting node of
the reference amplifier. In two-quadrant mode, shorts to the REF pin.
(Not to Scale)
AD5546
TOP VIEW
DD
DD
+ 0.3 V.
+ 0.3 V.
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
D8
D9
D10
D11
D12
D13
D14
D15
GND
RS
MSB
WR
LDAC
DD
DD
+ 0.3 V.
Rev. C | Page 6 of 20
DD
+ 0.3 V.
DD
DD
DD
+0.3 V.
DD
+ 0.3 V.
+ 0.3 V.
+ 0.3 V.
Figure 5. AD5556 Pin Configuration
R
R
I
COM 12
REF
R
OUT 14
OFS
NC
NC
D5
D4
D3
D2
D1
D0
R1
FB 10
11
13
NC = NO CONNECT
1
2
3
4
5
6
7
8
9
(Not to Scale)
FB
AD5556
TOP VIEW
. In four-quadrant mode, ties to R1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
D6
D7
D8
D9
D10
D11
D12
D13
GND
RS
MSB
WR
LDAC
DD
OFS
OFS
.
.