To display text input field you can use the following code sample,
Code sample
array(
'id' => 'some_id_text_field',
'title' => __('Text Field','text-domain'),
'details' => __('Description of text field','text-domain'),
'type' => 'text',
'default' => 'Default Text',
'placeholder' => __('Text value','text-domain'),
),
Preview

