SIGNALWARE LOGOTI DSP LOGO

TMS320C5x/C6x EVALUATION MODULE

Analog Expansion Daughterboard

D/A Converters

See SIGNALWARE's Home Page or Customer Reply Form for further assistance.

D/A Converter Selector

D/A Converter Selection Table

From the table below, select the combination of Settling Time and bit width required for D/A(s). Click on "Avail" for the choice of AED models that can provide the selected capability. ? indicates the category has not been researched and documented. Please complete a Customer Reply Form indicating A/D, D/A and interface requirements. We will search for devices that meet your needs that fit on an AED product.

In feedback control applications, latency is often the critical specification instead of settling time. In order to get the desired latency, D/A converters with higher clock rates may be used to reduce the latency although the same value may be sent for several clocks. A special option is available for this purpose. Selection of the lowest settling time for the bit width available in the table below will generally show the lowest latencies available. Parallel interface converters will have lower latency that serial device interfaces.

D/A Settling Time* 8-bit 10-bit 12-bit 14-bit 16-bit 18-bit 20-bit 22-bit 24-bit
Above 10 microsec ? Avail ? ?
1 up to 10 microsec Avail ? Avail ?
1 microsec Avail ? ?
100 to 999 nanosec Avail ? ? ?
Below 100 nanosec Avail Avail Avail Avail Avail ?

Table Notes:
* - Sample rates for D/As are often substantially higher that reciprocal of settling time. However, settling time limits the highest frequency at which a full scale wave can be generated. Most D/A sampling rates more than cover the Nyquist rate for settling time driven frequency. Therefore, settling time is a better barometer of the capability of a D/A than the maximum sampling rate.

Products with 8-bit D/A 100 to 999 nanosec Settling Time

Daughterboard
D/A
Maximum Channels
Settling Time
Latency
Digital I/O
Notes
AED-100
TLC7524
2
100 ns
180 ns
4I, 4O

Products with 8-bit D/A below 100 nanosec Settling Time

Daughterboard
D/A
Maximum Channels
Settling Time
Latency
Digital I/O
Notes
AED-2xx *
TLC5602
4
30 ns
66 ns
24
AED-2xx *
THS5641A
3
35 ns
20 ns
24
AED-2xx *
DAC908
3
30 ns
20 ns
24
AED-3xx *
THS5641A
4
35 ns
20 ns
16
AED-3xx *
DAC908
4
30 ns
20 ns
16

* - No board number has been assigned for this configuration.

Products with 10-bit D/A below 100 nanosec Settling Time

Daughterboard
D/A
Maximum Channels
Settling Time
Latency
Digital I/O
Notes
AED-21x
THS5651A
3
35 ns
20 ns
24
AED-2xx *
DAC900
3
30 ns
20 ns
24
AED-31x
THS5651A
4
35 ns
20 ns
16
AED-3xx *
DAC900
4
30 ns
20 ns
16

* - No board number has been assigned for this configuration.

Products with 12-bit D/A 1 up to 10 microsec Settling Time

Daughterboard
D/A
Maximum Channels
Settling Time
Latency
Digital I/O
Notes
AED-102
TLV5614 #
8
3 us
1us
24
AED-2xx *
TLV5616
10
3 us
1 us
24
AED-2xx *
TLV5614 #
20
3 us
1 us
24
AED-3xx *
TLV5616
16
3 us
1 us
16
AED-3xx *
TLV5614 #
32
3 us
1 us
16

* - No board number has been assigned for this configuration.

# - Multi-channel device gives increased Latency and/or non-concurrent update when more than one channel is used.

Products with 12-bit D/A 1 microsec Settling Time

Daughterboard
D/A
Maximum Channels
Settling Time
Latency
Digital I/O
Notes
AED-103
TLV5633
2
1 us
**
24
AED-2xx *
DAC7541
4
1 us
**
24
AED-2xx *
TLV5639
4
1 us
**
24
AED-2xx *
DAC8043
10
1 us
**
24
AED-2xx *
TLV5636
10
1 us
1 us
24
AED-2xx *
TLV5638 #
20
1 us
1 us
24
AED-2xx *
TLV5610 #
32
1 us
1 us
24
AED-3xx *
TLV5639
8
1 us
1 us
16
AED-3xx *
TLV5636
16
1 us
1 us
16
AED-3xx *
TLV5610 #
36
1 us
1 us
16

* - No board number has been assigned for this configuration.

# - Multi-channel device gives increased Latency and/or non-concurrent update when more than one channel is used.

Products with 12-bit D/A below 100 nanosec Settling Time

Daughterboard
D/A
Maximum Channels
Settling Time
Latency
Digital I/O
Notes
AED-101
THS5661
2
30 ns
20 ns
16
AED-109
THS5661
2
35 ns
20 ns
16
AED-150
LTC1666
4
20 ns
40 ns
None
AED-150 provides up to 4 Gbytes of buffer memory.
AED-2xx *
DAC902
3
30 ns
20 ns
24
AED-22x
THS5661
3
35 ns
20 ns
24
AED-3xx *
DAC902
4
30
20 ns
16
AED-32x
THS5661
4
35 ns
20 ns
16

* - No board number has been assigned for this configuration.

Products with 14-bit D/A below 100 nanosec Settling Time

Daughterboard
D/A
Maximum Channels
Settling Time
Latency
Digital I/O
Notes
AED-109
THS5671
2
35 ns
20 ns
16
Option to mount the THS5671 in place of THS5661
AED-2xx *
DAC904
3
30 ns
20 ns
24
AED-2xx *
THS5671
3
35 ns
20 ns
24
AED-3xx *
DAC904
4
30 ns
20 ns
16
AED-3xx *
THS5671
4
35 ns
20 ns
16
AED-150
LTC1667
4
20 ns
40 ns
None
AED-150 provides up to 4 Gbytes of buffer memory.

* - No board number has been assigned for this configuration.

Products with 16-bit D/A 1 up to 10 microsec Settling Time

Daughterboard
D/A
Maximum Channels
Settling Time
Latency
Digital I/O
Notes
AED-35x
DAC8531
12
10 us
16
AED-35xD
DAC8532 #
24
10 us
16

* - No board number has been assigned for this configuration.

# - Multi-channel device gives increased Latency and/or non-concurrent update when more than one channel is used.

Products with 16-bit D/A below 100 nanosec Settling Time

Daughterboard
D/A
Maximum Channels
Settling Time
Latency
Digital I/O
Notes
AED-150 LTC1668 4 20 ns 40 ns None AED-150 provides up to 4 Gbytes of buffer memory.
AED-3xx *
LTC1668
4
20 ns
40 ns
16

* - No board number has been assigned for this configuration.

Products with 20-bit D/A above 10 microsec Settling Time

Daughterboard
D/A
Maximum Channels
Settling Time
Latency
Digital I/O
Notes
AED-3xx *
DAC1220
8
10 ms
10 us
16

* - No board number has been assigned for this configuration.