Data Sheet
Table Of Contents
- 1.0 Electrical Characteristics
- 2.0 Typical Performance Curves
- Figure 2-1: DNL vs. Code.
- Figure 2-2: DNL vs. Code and Ambient Temperature.
- Figure 2-3: Absolute DNL vs. Ambient Temperature.
- Figure 2-4: INL vs. Code and Ambient Temperature.
- Figure 2-5: Absolute INL vs. Ambient Temperature.
- Figure 2-6: INL vs. Code.
- Figure 2-7: Full-Scale VOUTA w/G = 1 (VREF) vs. Ambient Temperature and VDD.
- Figure 2-8: Full-Scale VOUTA w/G = 2 (2VREF) vs.Ambient Temperature and VDD.
- Figure 2-9: Output Noise Voltage Density (VREF Noise Density w/G = 1) vs. Frequency.
- Figure 2-10: Output Noise Voltage (VREF Noise Voltage w/G = 1) vs. Bandwidth.
- Figure 2-11: MCP4821 IDD vs. Ambient Temperature and VDD.
- Figure 2-12: MCP4821 IDD Histogram (VDD = 2.7V).
- Figure 2-13: MCP4821 IDD Histogram (VDD = 5.0V).
- Figure 2-14: MCP4822 IDD vs. Ambient Temperature and VDD.
- Figure 2-15: MCP4822 IDD Histogram (VDD = 2.7V).
- Figure 2-16: MCP4822 IDD Histogram (VDD = 5.0V).
- Figure 2-17: Hardware Shutdown Current vs. Ambient Temperature and VDD.
- Figure 2-18: Software Shutdown Current vs. Ambient Temperature and VDD.
- Figure 2-19: Offset Error vs. Ambient Temperature and VDD.
- Figure 2-20: Gain Error vs. Ambient Temperature and VDD.
- Figure 2-21: VIN High Threshold vs. Ambient Temperature and VDD.
- Figure 2-22: VIN Low Threshold vs. Ambient Temperature and VDD.
- Figure 2-23: Input Hysteresis vs. Ambient Temperature and VDD.
- Figure 2-24: VOUT High Limit vs. Ambient Temperature and VDD.
- Figure 2-25: VOUT Low Limit vs. Ambient Temperature and VDD.
- Figure 2-26: IOUT High Short vs. Ambient Temperature and VDD.
- Figure 2-27: IOUT vs. VOUT. Gain = 2.
- Figure 2-28: VOUT Rise Time 100%.
- Figure 2-29: VOUT Fall Time.
- Figure 2-30: VOUT Rise Time 50%.
- Figure 2-31: VOUT Rise Time 25% - 75%.
- Figure 2-32: VOUT Rise Time Exit Shutdown.
- Figure 2-33: PSRR vs. Frequency.
- 3.0 Pin descriptions
- 4.0 General Overview
- 5.0 Serial Interface
- 6.0 Typical Applications
- 6.1 Digital Interface
- 6.2 Power Supply Considerations
- 6.3 Output Noise Considerations
- 6.4 Layout Considerations
- 6.5 Single-Supply Operation
- 6.6 Bipolar Operation
- 6.7 Selectable Gain and Offset Bipolar Voltage Output Using A Dual DAC
- 6.8 Designing A Double-Precision DAC Using A Dual DAC
- 6.9 Building A Programmable Current Source
- 7.0 Development support
- 8.0 Packaging Information
MCP4821/MCP4822
DS21953A-page 10 © 2005 Microchip Technology Inc.
Note: Unless otherwise indicated, T
A
= +25°C, V
DD
= 5V, AV
SS
= 0V, V
REF
= 2.048V, Gain = 2, R
L
= 5 kΩ, C
L
= 100 pF.
FIGURE 2-11: MCP4821 I
DD
vs. Ambient
Temperature and V
DD
.
FIGURE 2-12: MCP4821 I
DD
Histogram
(V
DD
= 2.7V).
FIGURE 2-13: MCP4821 I
DD
Histogram
(V
DD
= 5.0V).
FIGURE 2-14: MCP4822 I
DD
vs. Ambient
Temperature and V
DD
.
FIGURE 2-15: MCP4822 I
DD
Histogram
(V
DD
= 2.7V).
FIGURE 2-16: MCP4822 I
DD
Histogram
(V
DD
= 5.0V).
180
200
220
240
260
280
300
320
340
-40 -20 0 20 40 60 80 100 120
Ambient Temperature (°C)
I
DD
(μA)
V
DD
5.5V
4.0V
5.0V
3.0V
2.7V
0
2
4
6
8
10
12
14
16
18
20
265
270
275
280
285
290
295
300
305
310
315
320
>320
I
DD
(μA)
Occurrence
0
2
4
6
8
10
12
14
16
18
285
290
295
300
305
310
315
320
325
330
335
340
345
350
>350
I
DD
(μA)
Occurrence
300
350
400
450
500
550
600
-40 -20 0 20 40 60 80 100 120
Ambient Temperature (ºC)
I
DD
(μA)
V
DD
5.5V
4.0V
5.0V
3.0V
2.7V
0
5
10
15
20
25
380
385
390
395
400
405
410
415
420
425
430
435
440
I
DD
(μA)
Occurrence
0
2
4
6
8
10
12
14
16
18
20
22
385
390
395
400
405
410
415
420
425
430
435
I
DD
(μA)
Occurrence