Philips Semiconductors Linear Products

Product specification

MC3410,

MC3410C

10-Bit high-speed multiplying D/A converter

August 31, 1994

747

When a DC reference voltage is used, capacitive bypass to ground

is recommended. The 5V logic supply is not recommended as a

reference voltage. If a well regulated 5.0V supply, which drives logic,

connecting it to the +5.0V logic supply through another resistor and

bypassing the junction of the two resistors with a 0.1

µF capacitor to

ground.

The reference amplifier is internally-compensated with a 10pF

feed-forward capacitor, which gives it its high slew rate and fast

settling time. Proper phase margin is maintained with all possible

current into Pin 16. The reference current can also be supplied by a

bandwidth of the amplifier decreases slightly and settling time

increases. For a current source with a dynamic output impedance of

1.0M

Ω, the bandwidth of the reference amplifier is approximately

The reference amplifier phase margin decreases as the current

source value decreases in the case of a current source reference,

so that the minimum reference current supplied from a current

source is 0.5mA for stability.

OUTPUT VOLTAGE COMPLIANCE

The output voltage compliance ranges from -2.5 to +0.2V. As shown

in Figure 2, this compliance range is nearly constant over

temperature. At the temperature extremes, however, the compliance

ACCURACY

Absolute accuracy is a measure of each output current level with

respect to its intended value. It is dependent upon relative accuracy

and full-scale current drift. Relative accuracy, or linearity, is the

measure of each output current with respect to its intended fraction

of the full-scale current. The relative accuracy of the MC3410 is

fairly constant over temperature due to the excellent temperature

tracking, of the implanted resistors. The full-scale current from the

reference amplifier may drift with temperature causing a change in

the absolute accuracy. However, the MC3410 has a low full-scale

current drift with temperature.

The MC3410 are accurate to within

±0.05% at 25°C with a reference

current of 2.0mA on Pin 16.

Figure 5. MC3410 Equivalent Circuit

CODE SELECTED 0111110011

R

MSB

LSB

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

GND

(2)

(3)

(INTERNAL)

2R

SEGMENT

DECODER

(15)

(16)

+

–

R

2R

R

2R

R

2R

R

2R

R

2R

2R

2R

2R1

R1

R1

R1

R1

VEE (1)

VREF

+

–

VBIAS

IOUT

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10