Datasheet > 5962-8961701LA

5962-8961701LA

更新时间： 2024-01-10 10:49:47

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
8页	288K
描述
Microprocessor-Compatible 12-Bit D/A Converter

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技术参数
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5962-8961701LA 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Active	零件包装代码：	DIP
包装说明：	1.280 X 0.310 INCH, HERMETIC SEALED, CERAMIC, DIP-24	针数：	24
Reach Compliance Code：	not_compliant	ECCN代码：	3A001.A.2.C
HTS代码：	8542.39.00.01	风险等级：	5.11
转换器类型：	D/A CONVERTER	输入位码：	BINARY
输入格式：	PARALLEL, WORD	JESD-30 代码：	R-CDIP-T24
JESD-609代码：	e0	长度：	30.48 mm
最大线性误差 (EL)：	0.024%	标称负供电电压：	-15 V
位数：	12	功能数量：	1
端子数量：	24	最高工作温度：	125 °C
最低工作温度：	-55 °C	封装主体材料：	CERAMIC, METAL-SEALED COFIRED
封装代码：	DIP	封装等效代码：	DIP24,.3
封装形状：	RECTANGULAR	封装形式：	IN-LINE
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	+-12/+-15 V
认证状态：	Qualified	筛选级别：	38535Q/M;38534H;883B
最大稳定时间：	4 µs	标称安定时间 (tstl)：	3 µs
子类别：	Other Converters	最大压摆率：	23 mA
标称供电电压：	15 V	表面贴装：	NO
技术：	BIPOLAR	温度等级：	MILITARY
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7.62 mm
Base Number Matches：	1

5962-8961701LA 数据手册

AD767

THE AD767 OFFERS TRUE 12-BIT PERFORMANCE

OVER THE FULL TEMPERATURE RANGE

Gain and offset drift are minimized in the AD767 because of the

thermal tracking of the scaling resistors with other device

components. Connections for various output voltage ranges are

shown in Table I.

LINEARITY ERROR: Analog Devices defines linearity error as

the maximum deviation of the actual, adjusted DAC output

from the ideal analog output (a straight line drawn from 0 to

F.S. – 1 LSB) for any bit combination. This is also referred to as

relative accuracy. The AD767 is laser trimmed to typically

maintain linearity errors at less than ±1/8 LSB for the K and B

versions and ±1/2 LSB for the J, A and S versions. Linearity

over temperature is also held to ±1/2 LSB (K/B) or ±1 LSB

(J/A/S).

MONOTONICITY: A DAC is said to be monotonic if the

output either increases or remains constant for increasing digital

inputs such that the output will always be a nondecreasing

function of input. All versions of the AD767 are monotonic over

their full operating temperature range.

Figure 1. Output Amplifier Voltage Range Scaling Circuit

UNIPOLAR CONFIGURATION (Figure 2)

DIFFERENTIAL NONLINEARITY: Monotonic behavior

requires that the differential linearity error be less than 1 LSB

both at +25°C as well as over the temperature range of interest.

Differential nonlinearity is the measure of the variation in analog

value, normalized to full scale, associated with a 1 LSB change

in digital input code. For example, for a 10 volt full-scale

output, a change of 1 LSB in digital input code should result in

a 2.44 mV change in the analog output (1 LSB = 10 V ϫ

1/4096 = 2.44 mV). If in actual use, however, a 1 LSB change

in the input code results in a change of only 0.61 mV (1/4 LSB)

in analog output, the differential nonlinearity error would be

–1.83 mV, or –3/4 LSB.

This configuration will provide a unipolar 0 to +10 volt output

range. In this mode, the bipolar offset terminal, Pin 4, should be

grounded if not used for trimming.

STEP I … ZERO ADJUST

Turn all bits OFF and adjust zero trimmer R1, until the output

reads 0.000 volts (1 LSB = 2.44 mV). In most cases this trim is

not needed, and Pin 4 should be connected to Pin 5.

STEP II … GAIN ADJUST

Turn all bits ON and adjust 100 Ω gain trimmer R2 until the

output is 9.9976 volts. (Full scale is adjusted to 1 LSB less than

nominal full scale of 10.000 volts.)

GAIN ERROR: DAC gain error is a measure of the difference

between an ideal DAC and the actual device’s output span. All

grades of the AD767 have a maximum gain error of 0.2% FS.

However, if this is not sufficient, the error can easily be adjusted

to zero (see Figures 2 and 3).

UNIPOLAR OFFSET ERROR: Unipolar offset error is a

combination of the offset errors of the voltage-mode DAC and

the output amplifier and is measured when the AD767 is

configured for unipolar outputs. It is present for all codes and is

measured with all “0s” in the DAC latches. This is easily

adjustable to zero when required.

BIPOLAR ZERO ERROR: Bipolar zero errors result from

errors produced by the DAC and output amplifier when the

AD767 is configured for bipolar output. Again, as with unipolar

offset and gain errors, this is easily adjusted to zero when

required.

Figure 2. 0 to +10 V Unipolar Voltage Output

ANALOG CIRCUIT CONNECTIONS

Internal scaling resistors provided in the AD767 may be connected

to produce bipolar output voltage ranges of ±10, ±5 or ±2.5 V

or unipolar output voltage ranges of 0 to +5 V or 0 to+10 V.

Table I. Output Voltage Range Connections

Output

Range

Digital

Input Codes

Connect

Pin 9 to

Connect

Pin 1 to

Connect

Pin 2 to

Connect

Pin 4 to

±10 V

±5 V

±2.5 V

0 to +10 V

0 to +5 V

Offset Binary

Straight Binary

1 and 9

6 (through 50 Ω fixed or 100 Ω trim resistor)

5 (or optional trim – See Figure 2)

1 and 2

2 and 9

5 (or optional trim – See Figure 2)

–4–

REV. A

1 2 345 6 7 8

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